From 517a029b3e6e7024f9a3480d235dd5c3797681aa Mon Sep 17 00:00:00 2001 From: "Ben V. Brown" Date: Sat, 22 Jul 2023 18:18:44 +1000 Subject: [PATCH] Miniware -> Only Bit-Bang I2C --- source/Core/BSP/Miniware/I2C_Wrapper.cpp | 89 - source/Core/BSP/Miniware/IRQ.cpp | 6 - source/Core/BSP/Miniware/IRQ.h | 7 +- source/Core/BSP/Miniware/Setup.cpp | 22 - source/Core/BSP/Miniware/Setup.h | 4 - .../Inc/stm32f1xx_hal_i2c.h | 634 --- .../Src/stm32f1xx_hal_i2c.c | 4574 ----------------- source/Core/BSP/Miniware/configuration.h | 7 + source/Core/BSP/Miniware/preRTOS.cpp | 3 - source/Core/BSP/Miniware/stm32f1xx_hal_msp.c | 49 - source/Core/BSP/Miniware/stm32f1xx_it.c | 8 +- 11 files changed, 12 insertions(+), 5391 deletions(-) delete mode 100644 source/Core/BSP/Miniware/I2C_Wrapper.cpp delete mode 100644 source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_i2c.c diff --git a/source/Core/BSP/Miniware/I2C_Wrapper.cpp b/source/Core/BSP/Miniware/I2C_Wrapper.cpp deleted file mode 100644 index 1ccbdfe54d..0000000000 --- a/source/Core/BSP/Miniware/I2C_Wrapper.cpp +++ /dev/null @@ -1,89 +0,0 @@ -/* - * FRToSI2C.cpp - * - * Created on: 14Apr.,2018 - * Author: Ralim - */ -#include "BSP.h" -#include "Setup.h" -#include -SemaphoreHandle_t FRToSI2C::I2CSemaphore = nullptr; -StaticSemaphore_t FRToSI2C::xSemaphoreBuffer; - -void FRToSI2C::CpltCallback() { - hi2c1.State = HAL_I2C_STATE_READY; // Force state reset (even if tx error) - if (I2CSemaphore) { - xSemaphoreGiveFromISR(I2CSemaphore, NULL); - } -} - -bool FRToSI2C::Mem_Read(uint16_t DevAddress, uint16_t MemAddress, uint8_t *pData, uint16_t Size) { - - if (!lock()) - return false; - if (HAL_I2C_Mem_Read(&hi2c1, DevAddress, MemAddress, I2C_MEMADD_SIZE_8BIT, pData, Size, 500) != HAL_OK) { - - I2C_Unstick(); - unlock(); - return false; - } - - unlock(); - return true; -} -bool FRToSI2C::I2C_RegisterWrite(uint8_t address, uint8_t reg, uint8_t data) { return Mem_Write(address, reg, &data, 1); } - -uint8_t FRToSI2C::I2C_RegisterRead(uint8_t add, uint8_t reg) { - uint8_t tx_data[1]; - Mem_Read(add, reg, tx_data, 1); - return tx_data[0]; -} -bool FRToSI2C::Mem_Write(uint16_t DevAddress, uint16_t MemAddress, uint8_t *pData, uint16_t Size) { - - if (!lock()) - return false; - if (HAL_I2C_Mem_Write_IT(&hi2c1, DevAddress, MemAddress, I2C_MEMADD_SIZE_8BIT, pData, Size) != HAL_OK) { - - I2C_Unstick(); - unlock(); - return false; - } - return true; -} - -bool FRToSI2C::Transmit(uint16_t DevAddress, uint8_t *pData, uint16_t Size) { - if (!lock()) - return false; - if (HAL_I2C_Master_Transmit_IT(&hi2c1, DevAddress, pData, Size) != HAL_OK) { - I2C_Unstick(); - unlock(); - return false; - } - return true; -} - -bool FRToSI2C::probe(uint16_t DevAddress) { - if (!lock()) - return false; - uint8_t buffer[1]; - bool worked = HAL_I2C_Mem_Read(&hi2c1, DevAddress, 0x0F, I2C_MEMADD_SIZE_8BIT, buffer, 1, 1000) == HAL_OK; - unlock(); - return worked; -} - -void FRToSI2C::I2C_Unstick() { unstick_I2C(); } - -void FRToSI2C::unlock() { xSemaphoreGive(I2CSemaphore); } - -bool FRToSI2C::lock() { return xSemaphoreTake(I2CSemaphore, (TickType_t)(TICKS_100MS * 2)) == pdTRUE; } - -bool FRToSI2C::writeRegistersBulk(const uint8_t address, const I2C_REG *registers, const uint8_t registersLength) { - for (int index = 0; index < registersLength; index++) { - if (!I2C_RegisterWrite(address, registers[index].reg, registers[index].val)) { - return false; - } - if (registers[index].pause_ms) - delay_ms(registers[index].pause_ms); - } - return true; -} diff --git a/source/Core/BSP/Miniware/IRQ.cpp b/source/Core/BSP/Miniware/IRQ.cpp index 7fa800e5d1..d7e86c00e5 100644 --- a/source/Core/BSP/Miniware/IRQ.cpp +++ b/source/Core/BSP/Miniware/IRQ.cpp @@ -23,12 +23,6 @@ void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef *hadc) { } } } -void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c __unused) { FRToSI2C::CpltCallback(); } -void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c __unused) { FRToSI2C::CpltCallback(); } -void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c __unused) { FRToSI2C::CpltCallback(); } -void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c __unused) { FRToSI2C::CpltCallback(); } -void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c __unused) { FRToSI2C::CpltCallback(); } -void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c __unused) { FRToSI2C::CpltCallback(); } extern osThreadId POWTaskHandle; diff --git a/source/Core/BSP/Miniware/IRQ.h b/source/Core/BSP/Miniware/IRQ.h index 27a3b13dbf..98c85667ca 100644 --- a/source/Core/BSP/Miniware/IRQ.h +++ b/source/Core/BSP/Miniware/IRQ.h @@ -18,12 +18,7 @@ extern "C" { #endif void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef *hadc); -void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c); + void HAL_GPIO_EXTI_Callback(uint16_t); #ifdef __cplusplus diff --git a/source/Core/BSP/Miniware/Setup.cpp b/source/Core/BSP/Miniware/Setup.cpp index ec9b9091a8..7525d0de82 100644 --- a/source/Core/BSP/Miniware/Setup.cpp +++ b/source/Core/BSP/Miniware/Setup.cpp @@ -13,10 +13,6 @@ ADC_HandleTypeDef hadc1; ADC_HandleTypeDef hadc2; DMA_HandleTypeDef hdma_adc1; -I2C_HandleTypeDef hi2c1; -DMA_HandleTypeDef hdma_i2c1_rx; -DMA_HandleTypeDef hdma_i2c1_tx; - IWDG_HandleTypeDef hiwdg; TIM_HandleTypeDef htimADC; TIM_HandleTypeDef htimTip; @@ -27,7 +23,6 @@ uint16_t ADCReadings[ADC_SAMPLES]; // Used to store the adc readings for the han // Functions static void SystemClock_Config(void); static void MX_ADC1_Init(void); -static void MX_I2C1_Init(void); static void MX_IWDG_Init(void); static void MX_TIP_CONTROL_TIMER_Init(void); static void MX_ADC_CONTROL_TIMER_Init(void); @@ -45,9 +40,6 @@ void Setup_HAL() { MX_GPIO_Init(); MX_DMA_Init(); -#ifndef I2C_SOFT_BUS_1 - MX_I2C1_Init(); -#endif MX_ADC1_Init(); MX_ADC2_Init(); MX_TIP_CONTROL_TIMER_Init(); @@ -277,20 +269,6 @@ static void MX_ADC2_Init(void) { ; } } -/* I2C1 init function */ -static void MX_I2C1_Init(void) { - hi2c1.Instance = I2C1; - hi2c1.Init.ClockSpeed = 80000; - // OLED doesnt handle >100k when its asleep (off). - hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_16_9; - hi2c1.Init.OwnAddress1 = 0; - hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; - hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; - hi2c1.Init.OwnAddress2 = 0; - hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; - hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; - HAL_I2C_Init(&hi2c1); -} /* IWDG init function */ static void MX_IWDG_Init(void) { diff --git a/source/Core/BSP/Miniware/Setup.h b/source/Core/BSP/Miniware/Setup.h index 94864f8f41..1841ff9d28 100644 --- a/source/Core/BSP/Miniware/Setup.h +++ b/source/Core/BSP/Miniware/Setup.h @@ -18,10 +18,6 @@ extern ADC_HandleTypeDef hadc1; extern ADC_HandleTypeDef hadc2; extern DMA_HandleTypeDef hdma_adc1; -extern DMA_HandleTypeDef hdma_i2c1_rx; -extern DMA_HandleTypeDef hdma_i2c1_tx; -extern I2C_HandleTypeDef hi2c1; - extern IWDG_HandleTypeDef hiwdg; extern TIM_HandleTypeDef htimADC; diff --git a/source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h b/source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h index 817f86e98c..a9c8a22765 100644 --- a/source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h +++ b/source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_i2c.h @@ -1,639 +1,5 @@ -/** - ****************************************************************************** - * @file stm32f1xx_hal_i2c.h - * @author MCD Application Team - * @brief Header file of I2C HAL module. - ****************************************************************************** - * @attention - * - *

© COPYRIGHT(c) 2016 STMicroelectronics

- * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** - */ -/* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F1xx_HAL_I2C_H #define __STM32F1xx_HAL_I2C_H -#ifdef __cplusplus -extern "C" { -#endif - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f1xx_hal_def.h" - -/** @addtogroup STM32F1xx_HAL_Driver - * @{ - */ - -/** @addtogroup I2C - * @{ - */ - -/* Exported types ------------------------------------------------------------*/ -/** @defgroup I2C_Exported_Types I2C Exported Types - * @{ - */ - -/** - * @brief I2C Configuration Structure definition - */ -typedef struct { - uint32_t ClockSpeed; /*!< Specifies the clock frequency. - This parameter must be set to a value lower than 400kHz */ - - uint32_t DutyCycle; /*!< Specifies the I2C fast mode duty cycle. - This parameter can be a value of @ref I2C_duty_cycle_in_fast_mode */ - - uint32_t OwnAddress1; /*!< Specifies the first device own address. - This parameter can be a 7-bit or 10-bit address. */ - - uint32_t AddressingMode; /*!< Specifies if 7-bit or 10-bit addressing mode is selected. - This parameter can be a value of @ref I2C_addressing_mode */ - - uint32_t DualAddressMode; /*!< Specifies if dual addressing mode is selected. - This parameter can be a value of @ref I2C_dual_addressing_mode */ - - uint32_t OwnAddress2; /*!< Specifies the second device own address if dual addressing mode is selected - This parameter can be a 7-bit address. */ - - uint32_t GeneralCallMode; /*!< Specifies if general call mode is selected. - This parameter can be a value of @ref I2C_general_call_addressing_mode */ - - uint32_t NoStretchMode; /*!< Specifies if nostretch mode is selected. - This parameter can be a value of @ref I2C_nostretch_mode */ - -} I2C_InitTypeDef; - -/** - * @brief HAL State structure definition - * @note HAL I2C State value coding follow below described bitmap : - * b7-b6 Error information - * 00 : No Error - * 01 : Abort (Abort user request on going) - * 10 : Timeout - * 11 : Error - * b5 IP initilisation status - * 0 : Reset (IP not initialized) - * 1 : Init done (IP initialized and ready to use. HAL I2C Init function called) - * b4 (not used) - * x : Should be set to 0 - * b3 - * 0 : Ready or Busy (No Listen mode ongoing) - * 1 : Listen (IP in Address Listen Mode) - * b2 Intrinsic process state - * 0 : Ready - * 1 : Busy (IP busy with some configuration or internal operations) - * b1 Rx state - * 0 : Ready (no Rx operation ongoing) - * 1 : Busy (Rx operation ongoing) - * b0 Tx state - * 0 : Ready (no Tx operation ongoing) - * 1 : Busy (Tx operation ongoing) - */ -typedef enum { - HAL_I2C_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized */ - HAL_I2C_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use */ - HAL_I2C_STATE_BUSY = 0x24U, /*!< An internal process is ongoing */ - HAL_I2C_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing */ - HAL_I2C_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing */ - HAL_I2C_STATE_LISTEN = 0x28U, /*!< Address Listen Mode is ongoing */ - HAL_I2C_STATE_BUSY_TX_LISTEN = 0x29U, /*!< Address Listen Mode and Data Transmission - process is ongoing */ - HAL_I2C_STATE_BUSY_RX_LISTEN = 0x2AU, /*!< Address Listen Mode and Data Reception - process is ongoing */ - HAL_I2C_STATE_ABORT = 0x60U, /*!< Abort user request ongoing */ - HAL_I2C_STATE_TIMEOUT = 0xA0U, /*!< Timeout state */ - HAL_I2C_STATE_ERROR = 0xE0U /*!< Error */ - -} HAL_I2C_StateTypeDef; - -/** - * @brief HAL Mode structure definition - * @note HAL I2C Mode value coding follow below described bitmap : - * b7 (not used) - * x : Should be set to 0 - * b6 - * 0 : None - * 1 : Memory (HAL I2C communication is in Memory Mode) - * b5 - * 0 : None - * 1 : Slave (HAL I2C communication is in Slave Mode) - * b4 - * 0 : None - * 1 : Master (HAL I2C communication is in Master Mode) - * b3-b2-b1-b0 (not used) - * xxxx : Should be set to 0000 - */ -typedef enum { - HAL_I2C_MODE_NONE = 0x00U, /*!< No I2C communication on going */ - HAL_I2C_MODE_MASTER = 0x10U, /*!< I2C communication is in Master Mode */ - HAL_I2C_MODE_SLAVE = 0x20U, /*!< I2C communication is in Slave Mode */ - HAL_I2C_MODE_MEM = 0x40U /*!< I2C communication is in Memory Mode */ - -} HAL_I2C_ModeTypeDef; - -/** - * @brief I2C handle Structure definition - */ -typedef struct { - I2C_TypeDef *Instance; /*!< I2C registers base address */ - - I2C_InitTypeDef Init; /*!< I2C communication parameters */ - - uint8_t *pBuffPtr; /*!< Pointer to I2C transfer buffer */ - - uint16_t XferSize; /*!< I2C transfer size */ - - __IO uint16_t XferCount; /*!< I2C transfer counter */ - - __IO uint32_t XferOptions; /*!< I2C transfer options */ - - __IO uint32_t PreviousState; /*!< I2C communication Previous state and mode - context for internal usage */ - - DMA_HandleTypeDef *hdmatx; /*!< I2C Tx DMA handle parameters */ - - DMA_HandleTypeDef *hdmarx; /*!< I2C Rx DMA handle parameters */ - - HAL_LockTypeDef Lock; /*!< I2C locking object */ - - __IO HAL_I2C_StateTypeDef State; /*!< I2C communication state */ - - __IO HAL_I2C_ModeTypeDef Mode; /*!< I2C communication mode */ - - __IO uint32_t ErrorCode; /*!< I2C Error code */ - - __IO uint32_t Devaddress; /*!< I2C Target device address */ - - __IO uint32_t Memaddress; /*!< I2C Target memory address */ - - __IO uint32_t MemaddSize; /*!< I2C Target memory address size */ - - __IO uint32_t EventCount; /*!< I2C Event counter */ - -} I2C_HandleTypeDef; - -/** - * @} - */ - -/* Exported constants --------------------------------------------------------*/ -/** @defgroup I2C_Exported_Constants I2C Exported Constants - * @{ - */ - -/** @defgroup I2C_Error_Code I2C Error Code - * @brief I2C Error Code - * @{ - */ -#define HAL_I2C_ERROR_NONE 0x00000000U /*!< No error */ -#define HAL_I2C_ERROR_BERR 0x00000001U /*!< BERR error */ -#define HAL_I2C_ERROR_ARLO 0x00000002U /*!< ARLO error */ -#define HAL_I2C_ERROR_AF 0x00000004U /*!< AF error */ -#define HAL_I2C_ERROR_OVR 0x00000008U /*!< OVR error */ -#define HAL_I2C_ERROR_DMA 0x00000010U /*!< DMA transfer error */ -#define HAL_I2C_ERROR_TIMEOUT 0x00000020U /*!< Timeout Error */ -/** - * @} - */ - -/** @defgroup I2C_duty_cycle_in_fast_mode I2C duty cycle in fast mode - * @{ - */ -#define I2C_DUTYCYCLE_2 0x00000000U -#define I2C_DUTYCYCLE_16_9 I2C_CCR_DUTY -/** - * @} - */ - -/** @defgroup I2C_addressing_mode I2C addressing mode - * @{ - */ -#define I2C_ADDRESSINGMODE_7BIT 0x00004000U -// #define I2C_ADDRESSINGMODE_10BIT (I2C_OAR1_ADDMODE | 0x00004000U) -/** - * @} - */ - -/** @defgroup I2C_dual_addressing_mode I2C dual addressing mode - * @{ - */ -#define I2C_DUALADDRESS_DISABLE 0x00000000U -#define I2C_DUALADDRESS_ENABLE I2C_OAR2_ENDUAL -/** - * @} - */ - -/** @defgroup I2C_general_call_addressing_mode I2C general call addressing mode - * @{ - */ -#define I2C_GENERALCALL_DISABLE 0x00000000U -#define I2C_GENERALCALL_ENABLE I2C_CR1_ENGC -/** - * @} - */ - -/** @defgroup I2C_nostretch_mode I2C nostretch mode - * @{ - */ -#define I2C_NOSTRETCH_DISABLE 0x00000000U -#define I2C_NOSTRETCH_ENABLE I2C_CR1_NOSTRETCH -/** - * @} - */ - -/** @defgroup I2C_Memory_Address_Size I2C Memory Address Size - * @{ - */ -#define I2C_MEMADD_SIZE_8BIT 0x00000001U -#define I2C_MEMADD_SIZE_16BIT 0x00000010U -/** - * @} - */ - -/** @defgroup I2C_XferDirection_definition I2C XferDirection definition - * @{ - */ -#define I2C_DIRECTION_RECEIVE 0x00000000U -#define I2C_DIRECTION_TRANSMIT 0x00000001U -/** - * @} - */ - -/** @defgroup I2C_XferOptions_definition I2C XferOptions definition - * @{ - */ -#define I2C_FIRST_FRAME 0x00000001U -#define I2C_NEXT_FRAME 0x00000002U -#define I2C_FIRST_AND_LAST_FRAME 0x00000004U -#define I2C_LAST_FRAME 0x00000008U -/** - * @} - */ - -/** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition - * @{ - */ -#define I2C_IT_BUF I2C_CR2_ITBUFEN -#define I2C_IT_EVT I2C_CR2_ITEVTEN -#define I2C_IT_ERR I2C_CR2_ITERREN -/** - * @} - */ - -/** @defgroup I2C_Flag_definition I2C Flag definition - * @{ - */ -#define I2C_FLAG_SMBALERT 0x00018000U -#define I2C_FLAG_TIMEOUT 0x00014000U -#define I2C_FLAG_PECERR 0x00011000U -#define I2C_FLAG_OVR 0x00010800U -#define I2C_FLAG_AF 0x00010400U -#define I2C_FLAG_ARLO 0x00010200U -#define I2C_FLAG_BERR 0x00010100U -#define I2C_FLAG_TXE 0x00010080U -#define I2C_FLAG_RXNE 0x00010040U -#define I2C_FLAG_STOPF 0x00010010U -// #define I2C_FLAG_ADD10 0x00010008U -#define I2C_FLAG_BTF 0x00010004U -#define I2C_FLAG_ADDR 0x00010002U -#define I2C_FLAG_SB 0x00010001U -#define I2C_FLAG_DUALF 0x00100080U -#define I2C_FLAG_SMBHOST 0x00100040U -#define I2C_FLAG_SMBDEFAULT 0x00100020U -#define I2C_FLAG_GENCALL 0x00100010U -#define I2C_FLAG_TRA 0x00100004U -#define I2C_FLAG_BUSY 0x00100002U -#define I2C_FLAG_MSL 0x00100001U -/** - * @} - */ - -/** - * @} - */ - -/* Exported macro ------------------------------------------------------------*/ -/** @defgroup I2C_Exported_Macros I2C Exported Macros - * @{ - */ - -/** @brief Reset I2C handle state - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. - * @retval None - */ -#define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2C_STATE_RESET) - -/** @brief Enable or disable the specified I2C interrupts. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. - * @param __INTERRUPT__: specifies the interrupt source to enable or disable. - * This parameter can be one of the following values: - * @arg I2C_IT_BUF: Buffer interrupt enable - * @arg I2C_IT_EVT: Event interrupt enable - * @arg I2C_IT_ERR: Error interrupt enable - * @retval None - */ -#define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 |= (__INTERRUPT__)) -#define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR2 &= (~(__INTERRUPT__))) - -/** @brief Checks if the specified I2C interrupt source is enabled or disabled. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. - * @param __INTERRUPT__: specifies the I2C interrupt source to check. - * This parameter can be one of the following values: - * @arg I2C_IT_BUF: Buffer interrupt enable - * @arg I2C_IT_EVT: Event interrupt enable - * @arg I2C_IT_ERR: Error interrupt enable - * @retval The new state of __INTERRUPT__ (TRUE or FALSE). - */ -#define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) - -/** @brief Checks whether the specified I2C flag is set or not. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. - * @param __FLAG__: specifies the flag to check. - * This parameter can be one of the following values: - * @arg I2C_FLAG_SMBALERT: SMBus Alert flag - * @arg I2C_FLAG_TIMEOUT: Timeout or Tlow error flag - * @arg I2C_FLAG_PECERR: PEC error in reception flag - * @arg I2C_FLAG_OVR: Overrun/Underrun flag - * @arg I2C_FLAG_AF: Acknowledge failure flag - * @arg I2C_FLAG_ARLO: Arbitration lost flag - * @arg I2C_FLAG_BERR: Bus error flag - * @arg I2C_FLAG_TXE: Data register empty flag - * @arg I2C_FLAG_RXNE: Data register not empty flag - * @arg I2C_FLAG_STOPF: Stop detection flag - * @arg I2C_FLAG_ADD10: 10-bit header sent flag - * @arg I2C_FLAG_BTF: Byte transfer finished flag - * @arg I2C_FLAG_ADDR: Address sent flag - * Address matched flag - * @arg I2C_FLAG_SB: Start bit flag - * @arg I2C_FLAG_DUALF: Dual flag - * @arg I2C_FLAG_SMBHOST: SMBus host header - * @arg I2C_FLAG_SMBDEFAULT: SMBus default header - * @arg I2C_FLAG_GENCALL: General call header flag - * @arg I2C_FLAG_TRA: Transmitter/Receiver flag - * @arg I2C_FLAG_BUSY: Bus busy flag - * @arg I2C_FLAG_MSL: Master/Slave flag - * @retval The new state of __FLAG__ (TRUE or FALSE). - */ -#define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) \ - ((((uint8_t)((__FLAG__) >> 16U)) == 0x01U) ? ((((__HANDLE__)->Instance->SR1) & ((__FLAG__)&I2C_FLAG_MASK)) == ((__FLAG__)&I2C_FLAG_MASK)) \ - : ((((__HANDLE__)->Instance->SR2) & ((__FLAG__)&I2C_FLAG_MASK)) == ((__FLAG__)&I2C_FLAG_MASK))) - -/** @brief Clears the I2C pending flags which are cleared by writing 0 in a specific bit. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. - * @param __FLAG__: specifies the flag to clear. - * This parameter can be any combination of the following values: - * @arg I2C_FLAG_SMBALERT: SMBus Alert flag - * @arg I2C_FLAG_TIMEOUT: Timeout or Tlow error flag - * @arg I2C_FLAG_PECERR: PEC error in reception flag - * @arg I2C_FLAG_OVR: Overrun/Underrun flag (Slave mode) - * @arg I2C_FLAG_AF: Acknowledge failure flag - * @arg I2C_FLAG_ARLO: Arbitration lost flag (Master mode) - * @arg I2C_FLAG_BERR: Bus error flag - * @retval None - */ -#define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR1 = ~((__FLAG__)&I2C_FLAG_MASK)) - -/** @brief Clears the I2C ADDR pending flag. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. - * @retval None - */ -#define __HAL_I2C_CLEAR_ADDRFLAG(__HANDLE__) \ - do { \ - __IO uint32_t tmpreg = 0x00U; \ - tmpreg = (__HANDLE__)->Instance->SR1; \ - tmpreg = (__HANDLE__)->Instance->SR2; \ - UNUSED(tmpreg); \ - } while (0U) - -/** @brief Clears the I2C STOPF pending flag. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. - * @retval None - */ -#define __HAL_I2C_CLEAR_STOPFLAG(__HANDLE__) \ - do { \ - __IO uint32_t tmpreg = 0x00U; \ - tmpreg = (__HANDLE__)->Instance->SR1; \ - (__HANDLE__)->Instance->CR1 |= I2C_CR1_PE; \ - UNUSED(tmpreg); \ - } while (0U) - -/** @brief Enable the I2C peripheral. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2Cx where x: 1 or 2 to select the I2C peripheral. - * @retval None - */ -#define __HAL_I2C_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 |= I2C_CR1_PE) - -/** @brief Disable the I2C peripheral. - * @param __HANDLE__: specifies the I2C Handle. - * This parameter can be I2Cx where x: 1 or 2 to select the I2C peripheral. - * @retval None - */ -#define __HAL_I2C_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR1 &= ~I2C_CR1_PE) - -/** - * @} - */ - -/* Exported functions --------------------------------------------------------*/ -/** @addtogroup I2C_Exported_Functions - * @{ - */ - -/** @addtogroup I2C_Exported_Functions_Group1 - * @{ - */ -/* Initialization/de-initialization functions **********************************/ -HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c); -HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c); -/** - * @} - */ - -/** @addtogroup I2C_Exported_Functions_Group2 - * @{ - */ -/* I/O operation functions *****************************************************/ -/******* Blocking mode: Polling */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); -HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); -HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); -HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); -HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout); -HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout); -HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout); - -/******* Non-Blocking mode: Interrupt */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); - -HAL_StatusTypeDef HAL_I2C_Master_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); -HAL_StatusTypeDef HAL_I2C_Master_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); -HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); -HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); -HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress); -HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c); -HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c); - -/******* Non-Blocking mode: DMA */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); -HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); - -/******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */ -void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c); -void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); -void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c); -void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c); -/** - * @} - */ - -/** @addtogroup I2C_Exported_Functions_Group3 - * @{ - */ -/* Peripheral State, Mode and Errors functions *********************************/ -HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c); -HAL_I2C_ModeTypeDef HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c); -uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c); - -/** - * @} - */ - -/** - * @} - */ -/* Private types -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private constants ---------------------------------------------------------*/ -/** @defgroup I2C_Private_Constants I2C Private Constants - * @{ - */ -#define I2C_FLAG_MASK 0x0000FFFFU -#define I2C_MIN_PCLK_FREQ_STANDARD 2000000U /*!< 2 MHz */ -#define I2C_MIN_PCLK_FREQ_FAST 4000000U /*!< 4 MHz */ -/** - * @} - */ - -/* Private macros ------------------------------------------------------------*/ -/** @defgroup I2C_Private_Macros I2C Private Macros - * @{ - */ - -#define I2C_MIN_PCLK_FREQ(__PCLK__, __SPEED__) (((__SPEED__) <= 100000U) ? ((__PCLK__) < I2C_MIN_PCLK_FREQ_STANDARD) : ((__PCLK__) < I2C_MIN_PCLK_FREQ_FAST)) -#define I2C_CCR_CALCULATION(__PCLK__, __SPEED__, __COEFF__) (((((__PCLK__)-1U) / ((__SPEED__) * (__COEFF__))) + 1U) & I2C_CCR_CCR) -#define I2C_FREQRANGE(__PCLK__) ((__PCLK__) / 1000000U) -#define I2C_RISE_TIME(__FREQRANGE__, __SPEED__) (((__SPEED__) <= 100000U) ? ((__FREQRANGE__) + 1U) : ((((__FREQRANGE__)*300U) / 1000U) + 1U)) -#define I2C_SPEED_STANDARD(__PCLK__, __SPEED__) ((I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 2U) < 4U) ? 4U : I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 2U)) -#define I2C_SPEED_FAST(__PCLK__, __SPEED__, __DUTYCYCLE__) \ - (((__DUTYCYCLE__) == I2C_DUTYCYCLE_2) ? I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 3U) : (I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 25U) | I2C_DUTYCYCLE_16_9)) -#define I2C_SPEED(__PCLK__, __SPEED__, __DUTYCYCLE__) \ - (((__SPEED__) <= 100000U) ? (I2C_SPEED_STANDARD((__PCLK__), (__SPEED__))) \ - : ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__)) & I2C_CCR_CCR) == 0U) ? 1U \ - : ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__))) | I2C_CCR_FS)) - -#define I2C_7BIT_ADD_WRITE(__ADDRESS__) ((uint8_t)((__ADDRESS__) & (~I2C_OAR1_ADD0))) -#define I2C_7BIT_ADD_READ(__ADDRESS__) ((uint8_t)((__ADDRESS__) | I2C_OAR1_ADD0)) - -#define I2C_10BIT_ADDRESS(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FFU)))) -#define I2C_10BIT_HEADER_WRITE(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0x0300U))) >> 7U) | (uint16_t)(0x00F0U)))) -#define I2C_10BIT_HEADER_READ(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0x0300U))) >> 7U) | (uint16_t)(0x00F1U)))) - -#define I2C_MEM_ADD_MSB(__ADDRESS__) ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0xFF00U))) >> 8U))) -#define I2C_MEM_ADD_LSB(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FFU)))) - -/** @defgroup I2C_IS_RTC_Definitions I2C Private macros to check input parameters - * @{ - */ -#define IS_I2C_DUTY_CYCLE(CYCLE) (((CYCLE) == I2C_DUTYCYCLE_2) || ((CYCLE) == I2C_DUTYCYCLE_16_9)) -#define IS_I2C_ADDRESSING_MODE(ADDRESS) (((ADDRESS) == I2C_ADDRESSINGMODE_7BIT) || ((ADDRESS) == I2C_ADDRESSINGMODE_10BIT)) -#define IS_I2C_DUAL_ADDRESS(ADDRESS) (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || ((ADDRESS) == I2C_DUALADDRESS_ENABLE)) -#define IS_I2C_GENERAL_CALL(CALL) (((CALL) == I2C_GENERALCALL_DISABLE) || ((CALL) == I2C_GENERALCALL_ENABLE)) -#define IS_I2C_NO_STRETCH(STRETCH) (((STRETCH) == I2C_NOSTRETCH_DISABLE) || ((STRETCH) == I2C_NOSTRETCH_ENABLE)) -#define IS_I2C_MEMADD_SIZE(SIZE) (((SIZE) == I2C_MEMADD_SIZE_8BIT) || ((SIZE) == I2C_MEMADD_SIZE_16BIT)) -#define IS_I2C_CLOCK_SPEED(SPEED) (((SPEED) > 0) && ((SPEED) <= 400000U)) -#define IS_I2C_OWN_ADDRESS1(ADDRESS1) (((ADDRESS1) & (uint32_t)(0xFFFFFC00U)) == 0U) -#define IS_I2C_OWN_ADDRESS2(ADDRESS2) (((ADDRESS2) & (uint32_t)(0xFFFFFF01U)) == 0U) -#define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_FIRST_FRAME) || ((REQUEST) == I2C_NEXT_FRAME) || ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || ((REQUEST) == I2C_LAST_FRAME)) -/** - * @} - */ - -/** - * @} - */ - -/* Private functions ---------------------------------------------------------*/ -/** @defgroup I2C_Private_Functions I2C Private Functions - * @{ - */ - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -#ifdef __cplusplus -} -#endif - #endif /* __STM32F1xx_HAL_I2C_H */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ diff --git a/source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_i2c.c b/source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_i2c.c deleted file mode 100644 index 5dd8b7c771..0000000000 --- a/source/Core/BSP/Miniware/Vendor/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_i2c.c +++ /dev/null @@ -1,4574 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f1xx_hal_i2c.c - * @author MCD Application Team - * @brief I2C HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the Inter Integrated Circuit (I2C) peripheral: - * + Initialization and de-initialization functions - * + IO operation functions - * + Peripheral State, Mode and Error functions - * - @verbatim - ============================================================================== - ##### How to use this driver ##### - ============================================================================== - [..] - The I2C HAL driver can be used as follows: - - (#) Declare a I2C_HandleTypeDef handle structure, for example: - I2C_HandleTypeDef hi2c; - - (#)Initialize the I2C low level resources by implementing the HAL_I2C_MspInit() API: - (##) Enable the I2Cx interface clock - (##) I2C pins configuration - (+++) Enable the clock for the I2C GPIOs - (+++) Configure I2C pins as alternate function open-drain - (##) NVIC configuration if you need to use interrupt process - (+++) Configure the I2Cx interrupt priority - (+++) Enable the NVIC I2C IRQ Channel - (##) DMA Configuration if you need to use DMA process - (+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive channel - (+++) Enable the DMAx interface clock using - (+++) Configure the DMA handle parameters - (+++) Configure the DMA Tx or Rx channel - (+++) Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle - (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on - the DMA Tx or Rx channel - - (#) Configure the Communication Speed, Duty cycle, Addressing mode, Own Address1, - Dual Addressing mode, Own Address2, General call and Nostretch mode in the hi2c Init structure. - - (#) Initialize the I2C registers by calling the HAL_I2C_Init(), configures also the low level Hardware - (GPIO, CLOCK, NVIC...etc) by calling the customized HAL_I2C_MspInit(&hi2c) API. - - (#) To check if target device is ready for communication, use the function HAL_I2C_IsDeviceReady() - - (#) For I2C IO and IO MEM operations, three operation modes are available within this driver : - - *** Polling mode IO operation *** - ================================= - [..] - (+) Transmit in master mode an amount of data in blocking mode using HAL_I2C_Master_Transmit() - (+) Receive in master mode an amount of data in blocking mode using HAL_I2C_Master_Receive() - (+) Transmit in slave mode an amount of data in blocking mode using HAL_I2C_Slave_Transmit() - (+) Receive in slave mode an amount of data in blocking mode using HAL_I2C_Slave_Receive() - - *** Polling mode IO MEM operation *** - ===================================== - [..] - (+) Write an amount of data in blocking mode to a specific memory address using HAL_I2C_Mem_Write() - (+) Read an amount of data in blocking mode from a specific memory address using HAL_I2C_Mem_Read() - - - *** Interrupt mode IO operation *** - =================================== - [..] - (+) Transmit in master mode an amount of data in non blocking mode using HAL_I2C_Master_Transmit_IT() - (+) At transmission end of transfer HAL_I2C_MasterTxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MasterTxCpltCallback - (+) Receive in master mode an amount of data in non blocking mode using HAL_I2C_Master_Receive_IT() - (+) At reception end of transfer HAL_I2C_MasterRxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MasterRxCpltCallback - (+) Transmit in slave mode an amount of data in non blocking mode using HAL_I2C_Slave_Transmit_IT() - (+) At transmission end of transfer HAL_I2C_SlaveTxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback - (+) Receive in slave mode an amount of data in non blocking mode using HAL_I2C_Slave_Receive_IT() - (+) At reception end of transfer HAL_I2C_SlaveRxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback - (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer HAL_I2C_ErrorCallback - (+) Abort a master I2C process communication with Interrupt using HAL_I2C_Master_Abort_IT() - (+) End of abort process, HAL_I2C_AbortCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_AbortCpltCallback() - - *** Interrupt mode IO sequential operation *** - ============================================== - [..] - (@) These interfaces allow to manage a sequential transfer with a repeated start condition - when a direction change during transfer - [..] - (+) A specific option field manage the different steps of a sequential transfer - (+) Option field values are defined through @ref I2C_XFEROPTIONS and are listed below: - (++) I2C_FIRST_AND_LAST_FRAME: No sequential usage, functionnal is same as associated interfaces in no sequential mode - (++) I2C_FIRST_FRAME: Sequential usage, this option allow to manage a sequence with start condition, address - and data to transfer without a final stop condition - (++) I2C_NEXT_FRAME: Sequential usage, this option allow to manage a sequence with a restart condition, address - and with new data to transfer if the direction change or manage only the new data to transfer - if no direction change and without a final stop condition in both cases - (++) I2C_LAST_FRAME: Sequential usage, this option allow to manage a sequance with a restart condition, address - and with new data to transfer if the direction change or manage only the new data to transfer - if no direction change and with a final stop condition in both cases - - (+) Differents sequential I2C interfaces are listed below: - (++) Sequential transmit in master I2C mode an amount of data in non-blocking mode using HAL_I2C_Master_Sequential_Transmit_IT() - (+++) At transmission end of current frame transfer, HAL_I2C_MasterTxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_MasterTxCpltCallback() - (++) Sequential receive in master I2C mode an amount of data in non-blocking mode using HAL_I2C_Master_Sequential_Receive_IT() - (+++) At reception end of current frame transfer, HAL_I2C_MasterRxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_MasterRxCpltCallback() - (++) Abort a master I2C process communication with Interrupt using HAL_I2C_Master_Abort_IT() - (+++) End of abort process, HAL_I2C_AbortCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_AbortCpltCallback() - (++) Enable/disable the Address listen mode in slave I2C mode using HAL_I2C_EnableListen_IT() HAL_I2C_DisableListen_IT() - (+++) When address slave I2C match, HAL_I2C_AddrCallback() is executed and user can - add his own code to check the Address Match Code and the transmission direction request by master (Write/Read). - (+++) At Listen mode end HAL_I2C_ListenCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_ListenCpltCallback() - (++) Sequential transmit in slave I2C mode an amount of data in non-blocking mode using HAL_I2C_Slave_Sequential_Transmit_IT() - (+++) At transmission end of current frame transfer, HAL_I2C_SlaveTxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback() - (++) Sequential receive in slave I2C mode an amount of data in non-blocking mode using HAL_I2C_Slave_Sequential_Receive_IT() - (+++) At reception end of current frame transfer, HAL_I2C_SlaveRxCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback() - (++) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer HAL_I2C_ErrorCallback() - - *** Interrupt mode IO MEM operation *** - ======================================= - [..] - (+) Write an amount of data in no-blocking mode with Interrupt to a specific memory address using - HAL_I2C_Mem_Write_IT() - (+) At MEM end of write transfer HAL_I2C_MemTxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MemTxCpltCallback - (+) Read an amount of data in no-blocking mode with Interrupt from a specific memory address using - HAL_I2C_Mem_Read_IT() - (+) At MEM end of read transfer HAL_I2C_MemRxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MemRxCpltCallback - (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer HAL_I2C_ErrorCallback - - *** DMA mode IO operation *** - ============================== - [..] - (+) Transmit in master mode an amount of data in non blocking mode (DMA) using - HAL_I2C_Master_Transmit_DMA() - (+) At transmission end of transfer HAL_I2C_MasterTxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MasterTxCpltCallback - (+) Receive in master mode an amount of data in non blocking mode (DMA) using - HAL_I2C_Master_Receive_DMA() - (+) At reception end of transfer HAL_I2C_MasterRxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MasterRxCpltCallback - (+) Transmit in slave mode an amount of data in non blocking mode (DMA) using - HAL_I2C_Slave_Transmit_DMA() - (+) At transmission end of transfer HAL_I2C_SlaveTxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback - (+) Receive in slave mode an amount of data in non blocking mode (DMA) using - HAL_I2C_Slave_Receive_DMA() - (+) At reception end of transfer HAL_I2C_SlaveRxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback - (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer HAL_I2C_ErrorCallback - (+) Abort a master I2C process communication with Interrupt using HAL_I2C_Master_Abort_IT() - (+) End of abort process, HAL_I2C_AbortCpltCallback() is executed and user can - add his own code by customization of function pointer HAL_I2C_AbortCpltCallback() - - *** DMA mode IO MEM operation *** - ================================= - [..] - (+) Write an amount of data in no-blocking mode with DMA to a specific memory address using - HAL_I2C_Mem_Write_DMA() - (+) At MEM end of write transfer HAL_I2C_MemTxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MemTxCpltCallback - (+) Read an amount of data in no-blocking mode with DMA from a specific memory address using - HAL_I2C_Mem_Read_DMA() - (+) At MEM end of read transfer HAL_I2C_MemRxCpltCallback is executed and user can - add his own code by customization of function pointer HAL_I2C_MemRxCpltCallback - (+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and user can - add his own code by customization of function pointer HAL_I2C_ErrorCallback - - - *** I2C HAL driver macros list *** - ================================== - [..] - Below the list of most used macros in I2C HAL driver. - - (+) __HAL_I2C_ENABLE: Enable the I2C peripheral - (+) __HAL_I2C_DISABLE: Disable the I2C peripheral - (+) __HAL_I2C_GET_FLAG : Checks whether the specified I2C flag is set or not - (+) __HAL_I2C_CLEAR_FLAG : Clear the specified I2C pending flag - (+) __HAL_I2C_ENABLE_IT: Enable the specified I2C interrupt - (+) __HAL_I2C_DISABLE_IT: Disable the specified I2C interrupt - - [..] - (@) You can refer to the I2C HAL driver header file for more useful macros - - *** I2C Workarounds linked to Silicon Limitation *** - ==================================================== - [..] - Below the list of all silicon limitations implemented for HAL on STM32F1xx product. - (@) See ErrataSheet to know full silicon limitation list of your product. - - (#) Workarounds Implemented inside I2C HAL Driver - (##) Wrong data read into data register (Polling and Interrupt mode) - (##) Start cannot be generated after a misplaced Stop - (##) Some software events must be managed before the current byte is being transferred: - Workaround: Use DMA in general, except when the Master is receiving a single byte. - For Interupt mode, I2C should have the highest priority in the application. - (##) Mismatch on the "Setup time for a repeated Start condition" timing parameter: - Workaround: Reduce the frequency down to 88 kHz or use the I2C Fast-mode if - supported by the slave. - (##) Data valid time (tVD;DAT) violated without the OVR flag being set: - Workaround: If the slave device allows it, use the clock stretching mechanism - by programming NoStretchMode = I2C_NOSTRETCH_DISABLE in HAL_I2C_Init. - - @endverbatim - ****************************************************************************** - * @attention - * - *

© COPYRIGHT(c) 2016 STMicroelectronics

- * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f1xx_hal.h" - -/** @addtogroup STM32F1xx_HAL_Driver - * @{ - */ - -/** @defgroup I2C I2C - * @brief I2C HAL module driver - * @{ - */ - -#ifdef HAL_I2C_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/** @addtogroup I2C_Private_Define - * @{ - */ -#define I2C_TIMEOUT_FLAG 35U /*!< Timeout 35 ms */ -#define I2C_TIMEOUT_BUSY_FLAG 25U /*!< Timeout 25 ms */ -#define I2C_NO_OPTION_FRAME 0xFFFF0000U /*!< XferOptions default value */ - -/* Private define for @ref PreviousState usage */ -#define I2C_STATE_MSK ((uint32_t)((HAL_I2C_STATE_BUSY_TX | HAL_I2C_STATE_BUSY_RX) & (~(uint32_t)HAL_I2C_STATE_READY))) /*!< Mask State define, keep only RX and TX bits */ -#define I2C_STATE_NONE ((uint32_t)(HAL_I2C_MODE_NONE)) /*!< Default Value */ -#define I2C_STATE_MASTER_BUSY_TX ((uint32_t)((HAL_I2C_STATE_BUSY_TX & I2C_STATE_MSK) | HAL_I2C_MODE_MASTER)) /*!< Master Busy TX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_MASTER_BUSY_RX ((uint32_t)((HAL_I2C_STATE_BUSY_RX & I2C_STATE_MSK) | HAL_I2C_MODE_MASTER)) /*!< Master Busy RX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_SLAVE_BUSY_TX ((uint32_t)((HAL_I2C_STATE_BUSY_TX & I2C_STATE_MSK) | HAL_I2C_MODE_SLAVE)) /*!< Slave Busy TX, combinaison of State LSB and Mode enum */ -#define I2C_STATE_SLAVE_BUSY_RX ((uint32_t)((HAL_I2C_STATE_BUSY_RX & I2C_STATE_MSK) | HAL_I2C_MODE_SLAVE)) /*!< Slave Busy RX, combinaison of State LSB and Mode enum */ - -/** - * @} - */ - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/** @addtogroup I2C_Private_Functions - * @{ - */ -/* Private functions to handle DMA transfer */ -static void I2C_DMAXferCplt(DMA_HandleTypeDef *hdma); -static void I2C_DMAError(DMA_HandleTypeDef *hdma); -static void I2C_DMAAbort(DMA_HandleTypeDef *hdma); - -static void I2C_ITError(I2C_HandleTypeDef *hi2c); - -static HAL_StatusTypeDef I2C_MasterRequestWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_MasterRequestRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_RequestMemoryWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_RequestMemoryRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnMasterAddressFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnTXEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnBTFFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnRXNEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_WaitOnSTOPFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef I2C_IsAcknowledgeFailed(I2C_HandleTypeDef *hi2c); - -/* Private functions for I2C transfer IRQ handler */ -static HAL_StatusTypeDef I2C_MasterTransmit_TXE(I2C_HandleTypeDef *hi2c); -static HAL_StatusTypeDef I2C_MasterTransmit_BTF(I2C_HandleTypeDef *hi2c); -static HAL_StatusTypeDef I2C_MasterReceive_RXNE(I2C_HandleTypeDef *hi2c); -static HAL_StatusTypeDef I2C_MasterReceive_BTF(I2C_HandleTypeDef *hi2c); -static HAL_StatusTypeDef I2C_Master_SB(I2C_HandleTypeDef *hi2c); -static HAL_StatusTypeDef I2C_Master_ADDR(I2C_HandleTypeDef *hi2c); - -/** - * @} - */ - -/* Exported functions --------------------------------------------------------*/ -/** @defgroup I2C_Exported_Functions I2C Exported Functions - * @{ - */ - -/** @defgroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and Configuration functions - * -@verbatim - =============================================================================== - ##### Initialization and de-initialization functions ##### - =============================================================================== - [..] This subsection provides a set of functions allowing to initialize and - de-initialize the I2Cx peripheral: - - (+) User must Implement HAL_I2C_MspInit() function in which he configures - all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC). - - (+) Call the function HAL_I2C_Init() to configure the selected device with - the selected configuration: - (++) Communication Speed - (++) Duty cycle - (++) Addressing mode - (++) Own Address 1 - (++) Dual Addressing mode - (++) Own Address 2 - (++) General call mode - (++) Nostretch mode - - (+) Call the function HAL_I2C_DeInit() to restore the default configuration - of the selected I2Cx peripheral. - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the I2C according to the specified parameters - * in the I2C_InitTypeDef and create the associated handle. - * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c) { - uint32_t freqrange = 0U; - uint32_t pclk1 = 0U; - - /* Check the I2C handle allocation */ - if (hi2c == NULL) { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); - assert_param(IS_I2C_CLOCK_SPEED(hi2c->Init.ClockSpeed)); - assert_param(IS_I2C_DUTY_CYCLE(hi2c->Init.DutyCycle)); - assert_param(IS_I2C_OWN_ADDRESS1(hi2c->Init.OwnAddress1)); - assert_param(IS_I2C_ADDRESSING_MODE(hi2c->Init.AddressingMode)); - assert_param(IS_I2C_DUAL_ADDRESS(hi2c->Init.DualAddressMode)); - assert_param(IS_I2C_OWN_ADDRESS2(hi2c->Init.OwnAddress2)); - assert_param(IS_I2C_GENERAL_CALL(hi2c->Init.GeneralCallMode)); - assert_param(IS_I2C_NO_STRETCH(hi2c->Init.NoStretchMode)); - - if (hi2c->State == HAL_I2C_STATE_RESET) { - /* Allocate lock resource and initialize it */ - hi2c->Lock = HAL_UNLOCKED; - /* Init the low level hardware : GPIO, CLOCK, NVIC */ - HAL_I2C_MspInit(hi2c); - } - - hi2c->State = HAL_I2C_STATE_BUSY; - - /* Disable the selected I2C peripheral */ - __HAL_I2C_DISABLE(hi2c); - - /* Get PCLK1 frequency */ - pclk1 = HAL_RCC_GetPCLK1Freq(); - - /* Check the minimum allowed PCLK1 frequency */ - if (I2C_MIN_PCLK_FREQ(pclk1, hi2c->Init.ClockSpeed) == 1U) { - return HAL_ERROR; - } - - /* Calculate frequency range */ - freqrange = I2C_FREQRANGE(pclk1); - - /*---------------------------- I2Cx CR2 Configuration ----------------------*/ - /* Configure I2Cx: Frequency range */ - hi2c->Instance->CR2 = freqrange; - - /*---------------------------- I2Cx TRISE Configuration --------------------*/ - /* Configure I2Cx: Rise Time */ - hi2c->Instance->TRISE = I2C_RISE_TIME(freqrange, hi2c->Init.ClockSpeed); - - /*---------------------------- I2Cx CCR Configuration ----------------------*/ - /* Configure I2Cx: Speed */ - hi2c->Instance->CCR = I2C_SPEED(pclk1, hi2c->Init.ClockSpeed, hi2c->Init.DutyCycle); - - /*---------------------------- I2Cx CR1 Configuration ----------------------*/ - /* Configure I2Cx: Generalcall and NoStretch mode */ - hi2c->Instance->CR1 = (hi2c->Init.GeneralCallMode | hi2c->Init.NoStretchMode); - - /*---------------------------- I2Cx OAR1 Configuration ---------------------*/ - /* Configure I2Cx: Own Address1 and addressing mode */ - hi2c->Instance->OAR1 = (hi2c->Init.AddressingMode | hi2c->Init.OwnAddress1); - - /*---------------------------- I2Cx OAR2 Configuration ---------------------*/ - /* Configure I2Cx: Dual mode and Own Address2 */ - hi2c->Instance->OAR2 = (hi2c->Init.DualAddressMode | hi2c->Init.OwnAddress2); - - /* Enable the selected I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->Mode = HAL_I2C_MODE_NONE; - - return HAL_OK; -} - -/** - * @brief DeInitializes the I2C peripheral. - * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c) { - /* Check the I2C handle allocation */ - if (hi2c == NULL) { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance)); - - hi2c->State = HAL_I2C_STATE_BUSY; - - /* Disable the I2C Peripheral Clock */ - __HAL_I2C_DISABLE(hi2c); - - /* DeInit the low level hardware: GPIO, CLOCK, NVIC */ - HAL_I2C_MspDeInit(hi2c); - - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - hi2c->State = HAL_I2C_STATE_RESET; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Release Lock */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; -} - -/** - * @brief I2C MSP Init. - * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval None - */ -__weak void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - /* NOTE : This function Should not be modified, when the callback is needed, - the HAL_I2C_MspInit could be implemented in the user file - */ -} - -/** - * @brief I2C MSP DeInit - * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval None - */ -__weak void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - /* NOTE : This function Should not be modified, when the callback is needed, - the HAL_I2C_MspDeInit could be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup I2C_Exported_Functions_Group2 IO operation functions - * @brief Data transfers functions - * -@verbatim - =============================================================================== - ##### IO operation functions ##### - =============================================================================== - [..] - This subsection provides a set of functions allowing to manage the I2C data - transfers. - - (#) There are two modes of transfer: - (++) Blocking mode : The communication is performed in the polling mode. - The status of all data processing is returned by the same function - after finishing transfer. - (++) No-Blocking mode : The communication is performed using Interrupts - or DMA. These functions return the status of the transfer startup. - The end of the data processing will be indicated through the - dedicated I2C IRQ when using Interrupt mode or the DMA IRQ when - using DMA mode. - - (#) Blocking mode functions are : - (++) HAL_I2C_Master_Transmit() - (++) HAL_I2C_Master_Receive() - (++) HAL_I2C_Slave_Transmit() - (++) HAL_I2C_Slave_Receive() - (++) HAL_I2C_Mem_Write() - (++) HAL_I2C_Mem_Read() - (++) HAL_I2C_IsDeviceReady() - - (#) No-Blocking mode functions with Interrupt are : - (++) HAL_I2C_Master_Transmit_IT() - (++) HAL_I2C_Master_Receive_IT() - (++) HAL_I2C_Slave_Transmit_IT() - (++) HAL_I2C_Slave_Receive_IT() - (++) HAL_I2C_Master_Sequential_Transmit_IT() - (++) HAL_I2C_Master_Sequential_Receive_IT() - (++) HAL_I2C_Slave_Sequential_Transmit_IT() - (++) HAL_I2C_Slave_Sequential_Receive_IT() - (++) HAL_I2C_Mem_Write_IT() - (++) HAL_I2C_Mem_Read_IT() - - (#) No-Blocking mode functions with DMA are : - (++) HAL_I2C_Master_Transmit_DMA() - (++) HAL_I2C_Master_Receive_DMA() - (++) HAL_I2C_Slave_Transmit_DMA() - (++) HAL_I2C_Slave_Receive_DMA() - (++) HAL_I2C_Mem_Write_DMA() - (++) HAL_I2C_Mem_Read_DMA() - - (#) A set of Transfer Complete Callbacks are provided in non Blocking mode: - (++) HAL_I2C_MemTxCpltCallback() - (++) HAL_I2C_MemRxCpltCallback() - (++) HAL_I2C_MasterTxCpltCallback() - (++) HAL_I2C_MasterRxCpltCallback() - (++) HAL_I2C_SlaveTxCpltCallback() - (++) HAL_I2C_SlaveRxCpltCallback() - (++) HAL_I2C_ErrorCallback() - (++) HAL_I2C_AbortCpltCallback() - -@endverbatim - * @{ - */ - -/** - * @brief Transmits in master mode an amount of data in blocking mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) { - uint32_t tickstart = 0x00U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Send Slave Address */ - if (I2C_MasterRequestWrite(hi2c, DevAddress, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } else { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_TIMEOUT; - } - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - while (hi2c->XferSize > 0U) { - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferCount--; - hi2c->XferSize--; - - if ((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (hi2c->XferSize != 0U)) { - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferCount--; - hi2c->XferSize--; - } - - /* Wait until BTF flag is set */ - if (I2C_WaitOnBTFFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - } - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Receives in master mode an amount of data in blocking mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) { - uint32_t tickstart = 0x00U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Send Slave Address */ - if (I2C_MasterRequestRead(hi2c, DevAddress, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } else { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_TIMEOUT; - } - } - - if (hi2c->XferSize == 0U) { - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - } else if (hi2c->XferSize == 1U) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Re-enable IRQs */ - __enable_irq(); - } else if (hi2c->XferSize == 2U) { - /* Enable Pos */ - hi2c->Instance->CR1 |= I2C_CR1_POS; - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Re-enable IRQs */ - __enable_irq(); - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } - - while (hi2c->XferSize > 0U) { - if (hi2c->XferSize <= 3U) { - /* One byte */ - if (hi2c->XferSize == 1U) { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) { - return HAL_TIMEOUT; - } else { - return HAL_ERROR; - } - } - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - /* Two bytes */ - else if (hi2c->XferSize == 2U) { - /* Wait until BTF flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - /* Re-enable IRQs */ - __enable_irq(); - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - /* 3 Last bytes */ - else { - /* Wait until BTF flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - /* Wait until BTF flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - /* Re-enable IRQs */ - __enable_irq(); - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - } else { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) { - return HAL_TIMEOUT; - } else { - return HAL_ERROR; - } - } - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - } - } - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Transmits in slave mode an amount of data in blocking mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) { - uint32_t tickstart = 0x00U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (hi2c->State == HAL_I2C_STATE_READY) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - - - while (hi2c->XferSize > 0U) { - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - /* Disable Address Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferCount--; - hi2c->XferSize--; - - if ((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (hi2c->XferSize != 0U)) { - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferCount--; - hi2c->XferSize--; - } - } - - /* Wait until AF flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_AF, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Clear AF flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Disable Address Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Receive in slave mode an amount of data in blocking mode - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) { - uint32_t tickstart = 0x00U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (hi2c->State == HAL_I2C_STATE_READY) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - while (hi2c->XferSize > 0U) { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - /* Disable Address Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - if (hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) { - return HAL_TIMEOUT; - } else { - return HAL_ERROR; - } - } - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - if ((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (hi2c->XferSize != 0U)) { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - } - - /* Wait until STOP flag is set */ - if (I2C_WaitOnSTOPFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - /* Disable Address Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Clear STOP flag */ - __HAL_I2C_CLEAR_STOPFLAG(hi2c); - - /* Disable Address Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in master mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - hi2c->Devaddress = DevAddress; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Receive in master mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - hi2c->Devaddress = DevAddress; - - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Sequential transmit in master mode an amount of data in non-blocking mode with Interrupt - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) { - __IO uint32_t Prev_State = 0x00U; - __IO uint32_t count = 0x00U; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Check Busy Flag only if FIRST call of Master interface */ - if ((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME)) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferSize = hi2c->XferCount; - hi2c->Devaddress = DevAddress; - - Prev_State = hi2c->PreviousState; - - /* Generate Start */ - if ((Prev_State == I2C_STATE_MASTER_BUSY_RX) || (Prev_State == I2C_STATE_NONE)) { - /* Generate Start condition if first transfer */ - if ((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME)) { - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } else { - /* Generate ReStart */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Sequential receive in master mode an amount of data in non-blocking mode with Interrupt - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) { - __IO uint32_t count = 0U; - - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Check Busy Flag only if FIRST call of Master interface */ - if ((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME)) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferSize = hi2c->XferCount; - hi2c->Devaddress = DevAddress; - - if ((hi2c->PreviousState == I2C_STATE_MASTER_BUSY_TX) || (hi2c->PreviousState == I2C_STATE_NONE)) { - /* Generate Start condition if first transfer */ - if ((XferOptions == I2C_FIRST_AND_LAST_FRAME) || (XferOptions == I2C_FIRST_FRAME) || (XferOptions == I2C_NO_OPTION_FRAME)) { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate ReStart */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } - } - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in slave mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Receive in slave mode an amount of data in non-blocking mode with Interrupt - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferSize = Size; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - - /* Enable Address Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Sequential transmit in slave mode an amount of data in no-blocking mode with Interrupt - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) { - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_LISTEN) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX_LISTEN; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferSize = hi2c->XferCount; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Sequential receive in slave mode an amount of data in non-blocking mode with Interrupt - * @note This interface allow to manage repeated start condition when a direction change during transfer - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param XferOptions Options of Transfer, value of @ref I2C_XferOptions_definition - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Sequential_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) { - /* Check the parameters */ - assert_param(IS_I2C_TRANSFER_OPTIONS_REQUEST(XferOptions)); - - if (hi2c->State == HAL_I2C_STATE_LISTEN) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX_LISTEN; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = XferOptions; - hi2c->XferSize = hi2c->XferCount; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Enable the Address listen mode with Interrupt. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c) { - if (hi2c->State == HAL_I2C_STATE_READY) { - hi2c->State = HAL_I2C_STATE_LISTEN; - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Enable Address Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Enable EVT and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Disable the Address listen mode with Interrupt. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c) { - /* Declaration of tmp to prevent undefined behavior of volatile usage */ - uint32_t tmp; - - /* Disable Address listen mode only if a transfer is not ongoing */ - if (hi2c->State == HAL_I2C_STATE_LISTEN) { - tmp = (uint32_t)(hi2c->State) & I2C_STATE_MSK; - hi2c->PreviousState = tmp | (uint32_t)(hi2c->Mode); - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Disable Address Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Disable EVT and ERR interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Transmit in master mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - hi2c->Devaddress = DevAddress; - - if (hi2c->XferSize > 0U) { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMAXferCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)hi2c->pBuffPtr, (uint32_t)&hi2c->Instance->DR, hi2c->XferSize); - - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - - /* Enable DMA Request */ - hi2c->Instance->CR2 |= I2C_CR2_DMAEN; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - } - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Receive in master mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MASTER; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - hi2c->Devaddress = DevAddress; - - if (hi2c->XferSize > 0U) { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMAXferCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferHalfCpltCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->DR, (uint32_t)hi2c->pBuffPtr, hi2c->XferSize); - - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - - /* Enable DMA Request */ - hi2c->Instance->CR2 |= I2C_CR2_DMAEN; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - } - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Abort a master I2C process communication with Interrupt. - * @note This abort can be called only if state is ready - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(DevAddress); - - /* Abort Master transfer during Receive or Transmit process */ - if (hi2c->Mode == HAL_I2C_MODE_MASTER) { - /* Process Locked */ - __HAL_LOCK(hi2c); - - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_ABORT; - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - hi2c->XferCount = 0U; - - /* Disable EVT, BUF and ERR interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - I2C_ITError(hi2c); - - return HAL_OK; - } else { - /* Wrong usage of abort function */ - /* This function should be used only in case of abort monitored by master device */ - return HAL_ERROR; - } -} - -/** - * @brief Transmit in slave mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMAXferCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)hi2c->pBuffPtr, (uint32_t)&hi2c->Instance->DR, hi2c->XferSize); - - /* Enable Address Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable EVT and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - - /* Enable DMA Request */ - hi2c->Instance->CR2 |= I2C_CR2_DMAEN; - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Receive in slave mode an amount of data in non-blocking mode with DMA - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - if (hi2c->State == HAL_I2C_STATE_READY) { - if ((pData == NULL) || (Size == 0U)) { - return HAL_ERROR; - } - - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_SLAVE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMAXferCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferHalfCpltCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->DR, (uint32_t)hi2c->pBuffPtr, hi2c->XferSize); - - /* Enable Address Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable EVT and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - - /* Enable DMA Request */ - hi2c->Instance->CR2 |= I2C_CR2_DMAEN; - - return HAL_OK; - } else { - return HAL_BUSY; - } -} -/** - * @brief Write an amount of data in blocking mode to a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout) { - uint32_t tickstart = 0x00U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryWrite(hi2c, DevAddress, MemAddress, MemAddSize, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } else { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_TIMEOUT; - } - } - - while (hi2c->XferSize > 0U) { - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferSize--; - hi2c->XferCount--; - - if ((__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) && (hi2c->XferSize != 0U)) { - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferSize--; - hi2c->XferCount--; - } - } - - /* Wait until BTF flag is set */ - if (I2C_WaitOnBTFFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Read an amount of data in blocking mode from a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout) { - uint32_t tickstart = 0x00U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } else { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_TIMEOUT; - } - } - - if (hi2c->XferSize == 0U) { - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - } else if (hi2c->XferSize == 1U) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Re-enable IRQs */ - __enable_irq(); - } else if (hi2c->XferSize == 2U) { - /* Enable Pos */ - hi2c->Instance->CR1 |= I2C_CR1_POS; - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Re-enable IRQs */ - __enable_irq(); - } else { - /* Enable Acknowledge */ - SET_BIT(hi2c->Instance->CR1, I2C_CR1_ACK); - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } - - while (hi2c->XferSize > 0U) { - if (hi2c->XferSize <= 3U) { - /* One byte */ - if (hi2c->XferSize == 1U) { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) { - return HAL_TIMEOUT; - } else { - return HAL_ERROR; - } - } - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - /* Two bytes */ - else if (hi2c->XferSize == 2U) { - /* Wait until BTF flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - /* Re-enable IRQs */ - __enable_irq(); - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - /* 3 Last bytes */ - else { - /* Wait until BTF flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Disable all active IRQs around ADDR clearing and STOP programming because the EV6_3 - software sequence must complete before the current byte end of transfer */ - __disable_irq(); - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - /* Wait until BTF flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BTF, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - /* Re-enable IRQs */ - __enable_irq(); - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - } else { - /* Wait until RXNE flag is set */ - if (I2C_WaitOnRXNEFlagUntilTimeout(hi2c, Timeout, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_TIMEOUT) { - return HAL_TIMEOUT; - } else { - return HAL_ERROR; - } - } - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == SET) { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferSize--; - hi2c->XferCount--; - } - } - } - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Write an amount of data in non-blocking mode with Interrupt to a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferSize = Size; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->Devaddress = DevAddress; - hi2c->Memaddress = MemAddress; - hi2c->MemaddSize = MemAddSize; - hi2c->EventCount = 0U; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Read an amount of data in non-blocking mode with Interrupt from a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferSize = Size; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->Devaddress = DevAddress; - hi2c->Memaddress = MemAddress; - hi2c->MemaddSize = MemAddSize; - hi2c->EventCount = 0U; - - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - if (hi2c->XferSize > 0U) { - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - - /* Enable EVT, BUF and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - } - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Write an amount of data in non-blocking mode with DMA to a specific memory address - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) { - __IO uint32_t count = 0U; - - uint32_t tickstart = 0x00U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferSize = Size; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - - if (hi2c->XferSize > 0U) { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmatx->XferCpltCallback = I2C_DMAXferCplt; - - /* Set the DMA error callback */ - hi2c->hdmatx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmatx->XferHalfCpltCallback = NULL; - hi2c->hdmatx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - HAL_DMA_Start_IT(hi2c->hdmatx, (uint32_t)hi2c->pBuffPtr, (uint32_t)&hi2c->Instance->DR, hi2c->XferSize); - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryWrite(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } else { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_TIMEOUT; - } - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); - - /* Enable DMA Request */ - hi2c->Instance->CR2 |= I2C_CR2_DMAEN; - } - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Reads an amount of data in non-blocking mode with DMA from a specific memory address. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param pData Pointer to data buffer - * @param Size Amount of data to be read - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size) { - uint32_t tickstart = 0x00U; - __IO uint32_t count = 0U; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - /* Check the parameters */ - assert_param(IS_I2C_MEMADD_SIZE(MemAddSize)); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - count = I2C_TIMEOUT_BUSY_FLAG * (SystemCoreClock / 25U / 1000U); - do { - if (count-- == 0U) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BUSY) != RESET); - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY_RX; - hi2c->Mode = HAL_I2C_MODE_MEM; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Prepare transfer parameters */ - hi2c->pBuffPtr = pData; - hi2c->XferCount = Size; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->XferSize = hi2c->XferCount; - - if (hi2c->XferSize > 0U) { - /* Set the I2C DMA transfer complete callback */ - hi2c->hdmarx->XferCpltCallback = I2C_DMAXferCplt; - - /* Set the DMA error callback */ - hi2c->hdmarx->XferErrorCallback = I2C_DMAError; - - /* Set the unused DMA callbacks to NULL */ - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Enable the DMA channel */ - HAL_DMA_Start_IT(hi2c->hdmarx, (uint32_t)&hi2c->Instance->DR, (uint32_t)hi2c->pBuffPtr, hi2c->XferSize); - - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } else { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_TIMEOUT; - } - } - - if (Size == 1U) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - } else { - /* Enable Last DMA bit */ - hi2c->Instance->CR2 |= I2C_CR2_LAST; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - /* Note : The I2C interrupts must be enabled after unlocking current process - to avoid the risk of I2C interrupt handle execution before current - process unlock */ - /* Enable ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_ERR); - - /* Enable DMA Request */ - hi2c->Instance->CR2 |= I2C_CR2_DMAEN; - } else { - /* Send Slave Address and Memory Address */ - if (I2C_RequestMemoryRead(hi2c, DevAddress, MemAddress, MemAddSize, I2C_TIMEOUT_FLAG, tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_ERROR; - } else { - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - return HAL_TIMEOUT; - } - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - } - - return HAL_OK; - } else { - return HAL_BUSY; - } -} - -/** - * @brief Checks if target device is ready for communication. - * @note This function is used with Memory devices - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param Trials Number of trials - * @param Timeout Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout) { - uint32_t tickstart = 0U, tmp1 = 0U, tmp2 = 0U, tmp3 = 0U, I2C_Trials = 1U; - - /* Get tick */ - tickstart = HAL_GetTick(); - - if (hi2c->State == HAL_I2C_STATE_READY) { - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) { - return HAL_BUSY; - } - - /* Process Locked */ - __HAL_LOCK(hi2c); - - /* Check if the I2C is already enabled */ - if ((hi2c->Instance->CR1 & I2C_CR1_PE) != I2C_CR1_PE) { - /* Enable I2C peripheral */ - __HAL_I2C_ENABLE(hi2c); - } - - /* Disable Pos */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - hi2c->State = HAL_I2C_STATE_BUSY; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - - do { - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Wait until SB flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Send slave address */ - hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); - - /* Wait until ADDR or AF flag are set */ - /* Get tick */ - tickstart = HAL_GetTick(); - - tmp1 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR); - tmp2 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF); - tmp3 = hi2c->State; - while ((tmp1 == RESET) && (tmp2 == RESET) && (tmp3 != HAL_I2C_STATE_TIMEOUT)) { - if ((Timeout == 0U) || ((HAL_GetTick() - tickstart) > Timeout)) { - hi2c->State = HAL_I2C_STATE_TIMEOUT; - } - tmp1 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR); - tmp2 = __HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF); - tmp3 = hi2c->State; - } - - hi2c->State = HAL_I2C_STATE_READY; - - /* Check if the ADDR flag has been set */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_ADDR) == SET) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Clear ADDR Flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_OK; - } else { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Clear AF Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - /* Wait until BUSY flag is reset */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_BUSY, SET, I2C_TIMEOUT_BUSY_FLAG, tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - } - } while (I2C_Trials++ < Trials); - - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } else { - return HAL_BUSY; - } -} - -/** - * @brief This function handles I2C event interrupt request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c) { - uint32_t sr2itflags = READ_REG(hi2c->Instance->SR2); - uint32_t sr1itflags = READ_REG(hi2c->Instance->SR1); - uint32_t itsources = READ_REG(hi2c->Instance->CR2); - - uint32_t CurrentMode = hi2c->Mode; - - /* Master or Memory mode selected */ - if ((CurrentMode == HAL_I2C_MODE_MASTER) || (CurrentMode == HAL_I2C_MODE_MEM)) { - /* SB Set ----------------------------------------------------------------*/ - if (((sr1itflags & I2C_FLAG_SB) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) { - I2C_Master_SB(hi2c); - } - /* ADDR Set --------------------------------------------------------------*/ - else if (((sr1itflags & I2C_FLAG_ADDR) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) { - I2C_Master_ADDR(hi2c); - } - - /* I2C in mode Transmitter -----------------------------------------------*/ - if ((sr2itflags & I2C_FLAG_TRA) != RESET) { - /* TXE set and BTF reset -----------------------------------------------*/ - if (((sr1itflags & I2C_FLAG_TXE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) { - I2C_MasterTransmit_TXE(hi2c); - } - /* BTF set -------------------------------------------------------------*/ - else if (((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) { - I2C_MasterTransmit_BTF(hi2c); - } - } - /* I2C in mode Receiver --------------------------------------------------*/ - else { - /* RXNE set and BTF reset -----------------------------------------------*/ - if (((sr1itflags & I2C_FLAG_RXNE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) { - I2C_MasterReceive_RXNE(hi2c); - } - /* BTF set -------------------------------------------------------------*/ - else if (((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) { - I2C_MasterReceive_BTF(hi2c); - } - } - } - /* Slave mode selected */ -#if 0 - else - { - /* ADDR set --------------------------------------------------------------*/ - if(((sr1itflags & I2C_FLAG_ADDR) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) - { - I2C_Slave_ADDR(hi2c); - } - /* STOPF set --------------------------------------------------------------*/ - else if(((sr1itflags & I2C_FLAG_STOPF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) - { - I2C_Slave_STOPF(hi2c); - } - /* I2C in mode Transmitter -----------------------------------------------*/ - else if((sr2itflags & I2C_FLAG_TRA) != RESET) - { - /* TXE set and BTF reset -----------------------------------------------*/ - if(((sr1itflags & I2C_FLAG_TXE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) - { - I2C_SlaveTransmit_TXE(hi2c); - } - /* BTF set -------------------------------------------------------------*/ - else if(((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) - { - I2C_SlaveTransmit_BTF(hi2c); - } - } - /* I2C in mode Receiver --------------------------------------------------*/ - else - { - /* RXNE set and BTF reset ----------------------------------------------*/ - if(((sr1itflags & I2C_FLAG_RXNE) != RESET) && ((itsources & I2C_IT_BUF) != RESET) && ((sr1itflags & I2C_FLAG_BTF) == RESET)) - { - I2C_SlaveReceive_RXNE(hi2c); - } - /* BTF set -------------------------------------------------------------*/ - else if(((sr1itflags & I2C_FLAG_BTF) != RESET) && ((itsources & I2C_IT_EVT) != RESET)) - { - I2C_SlaveReceive_BTF(hi2c); - } - } - } -#endif -} - -/** - * @brief This function handles I2C error interrupt request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c) { - uint32_t tmp1 = 0U, tmp2 = 0U, tmp3 = 0U, tmp4 = 0U; - uint32_t sr1itflags = READ_REG(hi2c->Instance->SR1); - uint32_t itsources = READ_REG(hi2c->Instance->CR2); - - /* I2C Bus error interrupt occurred ----------------------------------------*/ - if (((sr1itflags & I2C_FLAG_BERR) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) { - hi2c->ErrorCode |= HAL_I2C_ERROR_BERR; - - /* Clear BERR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_BERR); - - /* Workaround: Start cannot be generated after a misplaced Stop */ - SET_BIT(hi2c->Instance->CR1, I2C_CR1_SWRST); - } - - /* I2C Arbitration Loss error interrupt occurred ---------------------------*/ - if (((sr1itflags & I2C_FLAG_ARLO) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) { - hi2c->ErrorCode |= HAL_I2C_ERROR_ARLO; - - /* Clear ARLO flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_ARLO); - } - - /* I2C Acknowledge failure error interrupt occurred ------------------------*/ - if (((sr1itflags & I2C_FLAG_AF) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) { - tmp1 = hi2c->Mode; - tmp2 = hi2c->XferCount; - tmp3 = hi2c->State; - tmp4 = hi2c->PreviousState; - if ((tmp1 == HAL_I2C_MODE_SLAVE) && (tmp2 == 0U) - && ((tmp3 == HAL_I2C_STATE_BUSY_TX) || (tmp3 == HAL_I2C_STATE_BUSY_TX_LISTEN) || ((tmp3 == HAL_I2C_STATE_LISTEN) && (tmp4 == I2C_STATE_SLAVE_BUSY_TX)))) { - } else { - hi2c->ErrorCode |= HAL_I2C_ERROR_AF; - - /* Do not generate a STOP in case of Slave receive non acknowledge during transfer (mean not at the end of transfer) */ - if (hi2c->Mode == HAL_I2C_MODE_MASTER) { - /* Generate Stop */ - SET_BIT(hi2c->Instance->CR1, I2C_CR1_STOP); - } - - /* Clear AF flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - } - } - - /* I2C Over-Run/Under-Run interrupt occurred -------------------------------*/ - if (((sr1itflags & I2C_FLAG_OVR) != RESET) && ((itsources & I2C_IT_ERR) != RESET)) { - hi2c->ErrorCode |= HAL_I2C_ERROR_OVR; - /* Clear OVR flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_OVR); - } - - /* Call the Error Callback in case of Error detected -----------------------*/ - if (hi2c->ErrorCode != HAL_I2C_ERROR_NONE) { - I2C_ITError(hi2c); - } -} - -/** - * @brief Master Tx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MasterTxCpltCallback can be implemented in the user file - */ -} - -/** - * @brief Master Rx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MasterRxCpltCallback can be implemented in the user file - */ -} - -/** @brief Slave Tx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_SlaveTxCpltCallback can be implemented in the user file - */ -} - -/** - * @brief Slave Rx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_SlaveRxCpltCallback can be implemented in the user file - */ -} - -/** - * @brief Slave Address Match callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param TransferDirection Master request Transfer Direction (Write/Read), value of @ref I2C_XferOptions_definition - * @param AddrMatchCode Address Match Code - * @retval None - */ -__weak void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - UNUSED(TransferDirection); - UNUSED(AddrMatchCode); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_AddrCallback can be implemented in the user file - */ -} - -/** - * @brief Listen Complete callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_ListenCpltCallback can be implemented in the user file - */ -} - -/** - * @brief Memory Tx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MemTxCpltCallback can be implemented in the user file - */ -} - -/** - * @brief Memory Rx Transfer completed callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_MemRxCpltCallback can be implemented in the user file - */ -} - -/** - * @brief I2C error callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_ErrorCallback can be implemented in the user file - */ -} - -/** - * @brief I2C abort callback. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval None - */ -__weak void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c) { - /* Prevent unused argument(s) compilation warning */ - UNUSED(hi2c); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_I2C_AbortCpltCallback could be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions - * @brief Peripheral State and Errors functions - * -@verbatim - =============================================================================== - ##### Peripheral State, Mode and Error functions ##### - =============================================================================== - [..] - This subsection permits to get in run-time the status of the peripheral - and the data flow. - -@endverbatim - * @{ - */ - -/** - * @brief Return the I2C handle state. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL state - */ -HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c) { - /* Return I2C handle state */ - return hi2c->State; -} - -/** - * @brief Return the I2C Master, Slave, Memory or no mode. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL mode - */ -HAL_I2C_ModeTypeDef HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c) { return hi2c->Mode; } - -/** - * @brief Return the I2C error code - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval I2C Error Code - */ -uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c) { return hi2c->ErrorCode; } - -/** - * @} - */ - -/** - * @brief Handle TXE flag for Master - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_MasterTransmit_TXE(I2C_HandleTypeDef *hi2c) { - /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ - uint32_t CurrentState = hi2c->State; - uint32_t CurrentMode = hi2c->Mode; - uint32_t CurrentXferOptions = hi2c->XferOptions; - - if ((hi2c->XferSize == 0U) && (CurrentState == HAL_I2C_STATE_BUSY_TX)) { - /* Call TxCpltCallback() directly if no stop mode is set */ - if ((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) && (CurrentXferOptions != I2C_NO_OPTION_FRAME)) { - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - hi2c->PreviousState = I2C_STATE_MASTER_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - HAL_I2C_MasterTxCpltCallback(hi2c); - } else /* Generate Stop condition then Call TxCpltCallback() */ - { - /* Disable EVT, BUF and ERR interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - if (hi2c->Mode == HAL_I2C_MODE_MEM) { - hi2c->Mode = HAL_I2C_MODE_NONE; - HAL_I2C_MemTxCpltCallback(hi2c); - } else { - hi2c->Mode = HAL_I2C_MODE_NONE; - HAL_I2C_MasterTxCpltCallback(hi2c); - } - } - } else if ((CurrentState == HAL_I2C_STATE_BUSY_TX) || ((CurrentMode == HAL_I2C_MODE_MEM) && (CurrentState == HAL_I2C_STATE_BUSY_RX))) { - if (hi2c->XferCount == 0U) { - /* Disable BUF interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_BUF); - } else { - if (hi2c->Mode == HAL_I2C_MODE_MEM) { - if (hi2c->EventCount == 0) { - /* If Memory address size is 8Bit */ - if (hi2c->MemaddSize == I2C_MEMADD_SIZE_8BIT) { - /* Send Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_LSB(hi2c->Memaddress); - - hi2c->EventCount += 2; - } - /* If Memory address size is 16Bit */ - else { - /* Send MSB of Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_MSB(hi2c->Memaddress); - - hi2c->EventCount++; - } - } else if (hi2c->EventCount == 1) { - /* Send LSB of Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_LSB(hi2c->Memaddress); - - hi2c->EventCount++; - } else if (hi2c->EventCount == 2) { - if (hi2c->State == HAL_I2C_STATE_BUSY_RX) { - /* Generate Restart */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } else if (hi2c->State == HAL_I2C_STATE_BUSY_TX) { - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferCount--; - } - } - } else { - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferCount--; - } - } - } - return HAL_OK; -} - -/** - * @brief Handle BTF flag for Master transmitter - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_MasterTransmit_BTF(I2C_HandleTypeDef *hi2c) { - /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ - uint32_t CurrentXferOptions = hi2c->XferOptions; - - if (hi2c->State == HAL_I2C_STATE_BUSY_TX) { - if (hi2c->XferCount != 0U) { - /* Write data to DR */ - hi2c->Instance->DR = (*hi2c->pBuffPtr++); - hi2c->XferCount--; - } else { - /* Call TxCpltCallback() directly if no stop mode is set */ - if ((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) && (CurrentXferOptions != I2C_NO_OPTION_FRAME)) { - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - hi2c->PreviousState = I2C_STATE_MASTER_BUSY_TX; - hi2c->Mode = HAL_I2C_MODE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - HAL_I2C_MasterTxCpltCallback(hi2c); - } else /* Generate Stop condition then Call TxCpltCallback() */ - { - /* Disable EVT, BUF and ERR interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - if (hi2c->Mode == HAL_I2C_MODE_MEM) { - hi2c->Mode = HAL_I2C_MODE_NONE; - - HAL_I2C_MemTxCpltCallback(hi2c); - } else { - hi2c->Mode = HAL_I2C_MODE_NONE; - - HAL_I2C_MasterTxCpltCallback(hi2c); - } - } - } - } - return HAL_OK; -} - -/** - * @brief Handle RXNE flag for Master - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_MasterReceive_RXNE(I2C_HandleTypeDef *hi2c) { - if (hi2c->State == HAL_I2C_STATE_BUSY_RX) { - uint32_t tmp = 0U; - - tmp = hi2c->XferCount; - if (tmp > 3U) { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferCount--; - } else if ((tmp == 2U) || (tmp == 3U)) { - if (hi2c->XferOptions != I2C_NEXT_FRAME) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Enable Pos */ - hi2c->Instance->CR1 |= I2C_CR1_POS; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - } - - /* Disable BUF interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_BUF); - } else { - if (hi2c->XferOptions != I2C_NEXT_FRAME) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - } - - /* Disable EVT, BUF and ERR interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_BUF | I2C_IT_ERR); - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferCount--; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->PreviousState = I2C_STATE_NONE; - - if (hi2c->Mode == HAL_I2C_MODE_MEM) { - hi2c->Mode = HAL_I2C_MODE_NONE; - HAL_I2C_MemRxCpltCallback(hi2c); - } else { - hi2c->Mode = HAL_I2C_MODE_NONE; - HAL_I2C_MasterRxCpltCallback(hi2c); - } - } - } - return HAL_OK; -} - -/** - * @brief Handle BTF flag for Master receiver - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_MasterReceive_BTF(I2C_HandleTypeDef *hi2c) { - /* Declaration of temporary variables to prevent undefined behavior of volatile usage */ - uint32_t CurrentXferOptions = hi2c->XferOptions; - - if (hi2c->XferCount == 3U) { - if ((CurrentXferOptions == I2C_FIRST_AND_LAST_FRAME) || (CurrentXferOptions == I2C_LAST_FRAME) || (CurrentXferOptions == I2C_NO_OPTION_FRAME)) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - } - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferCount--; - } else if (hi2c->XferCount == 2U) { - /* Prepare next transfer or stop current transfer */ - if ((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) && (CurrentXferOptions != I2C_NO_OPTION_FRAME)) { - if (CurrentXferOptions != I2C_NEXT_FRAME) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - } - - /* Disable EVT and ERR interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - } else { - /* Disable EVT and ERR interrupt */ - __HAL_I2C_DISABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - } - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferCount--; - - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferCount--; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->PreviousState = I2C_STATE_NONE; - - if (hi2c->Mode == HAL_I2C_MODE_MEM) { - hi2c->Mode = HAL_I2C_MODE_NONE; - - HAL_I2C_MemRxCpltCallback(hi2c); - } else { - hi2c->Mode = HAL_I2C_MODE_NONE; - - HAL_I2C_MasterRxCpltCallback(hi2c); - } - } else { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - hi2c->XferCount--; - } - return HAL_OK; -} - -/** - * @brief Handle SB flag for Master - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_Master_SB(I2C_HandleTypeDef *hi2c) { - if (hi2c->Mode == HAL_I2C_MODE_MEM) { - if (hi2c->EventCount == 0U) { - /* Send slave address */ - hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(hi2c->Devaddress); - } else { - hi2c->Instance->DR = I2C_7BIT_ADD_READ(hi2c->Devaddress); - } - } else { - if (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) { - /* Send slave 7 Bits address */ - if (hi2c->State == HAL_I2C_STATE_BUSY_TX) { - hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(hi2c->Devaddress); - } else { - hi2c->Instance->DR = I2C_7BIT_ADD_READ(hi2c->Devaddress); - } - } else { - if (hi2c->EventCount == 0U) { - /* Send header of slave address */ - hi2c->Instance->DR = I2C_10BIT_HEADER_WRITE(hi2c->Devaddress); - } else if (hi2c->EventCount == 1U) { - /* Send header of slave address */ - hi2c->Instance->DR = I2C_10BIT_HEADER_READ(hi2c->Devaddress); - } - } - } - - return HAL_OK; -} - - -/** - * @brief Handle ADDR flag for Master - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_Master_ADDR(I2C_HandleTypeDef *hi2c) { - /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ - uint32_t CurrentMode = hi2c->Mode; - uint32_t CurrentXferOptions = hi2c->XferOptions; - uint32_t Prev_State = hi2c->PreviousState; - - if (hi2c->State == HAL_I2C_STATE_BUSY_RX) { - if ((hi2c->EventCount == 0U) && (CurrentMode == HAL_I2C_MODE_MEM)) { - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } else { - if (hi2c->XferCount == 0U) { - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - } else if (hi2c->XferCount == 1U) { - if (CurrentXferOptions == I2C_NO_OPTION_FRAME) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - if ((hi2c->Instance->CR2 & I2C_CR2_DMAEN) == I2C_CR2_DMAEN) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } else { - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - } - } - /* Prepare next transfer or stop current transfer */ - else if ((CurrentXferOptions != I2C_FIRST_AND_LAST_FRAME) && (CurrentXferOptions != I2C_LAST_FRAME) && (Prev_State != I2C_STATE_MASTER_BUSY_RX)) { - if (hi2c->XferOptions != I2C_NEXT_FRAME) { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } else { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - } - } else if (hi2c->XferCount == 2U) { - if (hi2c->XferOptions != I2C_NEXT_FRAME) { - /* Enable Pos */ - hi2c->Instance->CR1 |= I2C_CR1_POS; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } - - if ((hi2c->Instance->CR2 & I2C_CR2_DMAEN) == I2C_CR2_DMAEN) { - /* Enable Last DMA bit */ - hi2c->Instance->CR2 |= I2C_CR2_LAST; - } - } else { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - if ((hi2c->Instance->CR2 & I2C_CR2_DMAEN) == I2C_CR2_DMAEN) { - /* Enable Last DMA bit */ - hi2c->Instance->CR2 |= I2C_CR2_LAST; - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } - - /* Reset Event counter */ - hi2c->EventCount = 0U; - } - } else { - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - } - - return HAL_OK; -} - -/** - * @brief I2C interrupts error process - * @param hi2c I2C handle. - * @retval None - */ -static void I2C_ITError(I2C_HandleTypeDef *hi2c) { - /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ - uint32_t CurrentState = hi2c->State; - - if ((CurrentState == HAL_I2C_STATE_BUSY_TX_LISTEN) || (CurrentState == HAL_I2C_STATE_BUSY_RX_LISTEN)) { - /* keep HAL_I2C_STATE_LISTEN */ - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_LISTEN; - } else { - /* If state is an abort treatment on going, don't change state */ - /* This change will be do later */ - if ((hi2c->State != HAL_I2C_STATE_ABORT) && ((hi2c->Instance->CR2 & I2C_CR2_DMAEN) != I2C_CR2_DMAEN)) { - hi2c->State = HAL_I2C_STATE_READY; - } - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->Mode = HAL_I2C_MODE_NONE; - } - - /* Disable Pos bit in I2C CR1 when error occurred in Master/Mem Receive IT Process */ - hi2c->Instance->CR1 &= ~I2C_CR1_POS; - - /* Abort DMA transfer */ - if ((hi2c->Instance->CR2 & I2C_CR2_DMAEN) == I2C_CR2_DMAEN) { - hi2c->Instance->CR2 &= ~I2C_CR2_DMAEN; - - if (hi2c->hdmatx->State != HAL_DMA_STATE_READY) { - /* Set the DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmatx->XferAbortCallback = I2C_DMAAbort; - - if (HAL_DMA_Abort_IT(hi2c->hdmatx) != HAL_OK) { - /* Disable I2C peripheral to prevent dummy data in buffer */ - __HAL_I2C_DISABLE(hi2c); - - hi2c->State = HAL_I2C_STATE_READY; - - /* Call Directly XferAbortCallback function in case of error */ - hi2c->hdmatx->XferAbortCallback(hi2c->hdmatx); - } - } else { - /* Set the DMA Abort callback : - will lead to call HAL_I2C_ErrorCallback() at end of DMA abort procedure */ - hi2c->hdmarx->XferAbortCallback = I2C_DMAAbort; - - if (HAL_DMA_Abort_IT(hi2c->hdmarx) != HAL_OK) { - /* Store Last receive data if any */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == SET) { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - } - - /* Disable I2C peripheral to prevent dummy data in buffer */ - __HAL_I2C_DISABLE(hi2c); - - hi2c->State = HAL_I2C_STATE_READY; - - /* Call Directly hi2c->hdmarx->XferAbortCallback function in case of error */ - hi2c->hdmarx->XferAbortCallback(hi2c->hdmarx); - } - } - } else if (hi2c->State == HAL_I2C_STATE_ABORT) { - hi2c->State = HAL_I2C_STATE_READY; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Store Last receive data if any */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == SET) { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - } - - /* Disable I2C peripheral to prevent dummy data in buffer */ - __HAL_I2C_DISABLE(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - HAL_I2C_AbortCpltCallback(hi2c); - } else { - /* Store Last receive data if any */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == SET) { - /* Read data from DR */ - (*hi2c->pBuffPtr++) = hi2c->Instance->DR; - } - - /* Call user error callback */ - HAL_I2C_ErrorCallback(hi2c); - } - /* STOP Flag is not set after a NACK reception */ - /* So may inform upper layer that listen phase is stopped */ - /* during NACK error treatment */ - if ((hi2c->State == HAL_I2C_STATE_LISTEN) && ((hi2c->ErrorCode & HAL_I2C_ERROR_AF) == HAL_I2C_ERROR_AF)) { - hi2c->XferOptions = I2C_NO_OPTION_FRAME; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Call the Listen Complete callback, to inform upper layer of the end of Listen usecase */ - HAL_I2C_ListenCpltCallback(hi2c); - } -} - -/** - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_MasterRequestWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart) { - /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ - uint32_t CurrentXferOptions = hi2c->XferOptions; - - /* Generate Start condition if first transfer */ - if ((CurrentXferOptions == I2C_FIRST_AND_LAST_FRAME) || (CurrentXferOptions == I2C_FIRST_FRAME) || (CurrentXferOptions == I2C_NO_OPTION_FRAME)) { - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } else if (hi2c->PreviousState == I2C_STATE_MASTER_BUSY_RX) { - /* Generate ReStart */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } - - /* Wait until SB flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - if (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) { - /* Send slave address */ - hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); - } - - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - return HAL_OK; -} - -/** - * @brief Master sends target device address for read request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_MasterRequestRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Timeout, uint32_t Tickstart) { - /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ - uint32_t CurrentXferOptions = hi2c->XferOptions; - - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start condition if first transfer */ - if ((CurrentXferOptions == I2C_FIRST_AND_LAST_FRAME) || (CurrentXferOptions == I2C_FIRST_FRAME) || (CurrentXferOptions == I2C_NO_OPTION_FRAME)) { - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } else if (hi2c->PreviousState == I2C_STATE_MASTER_BUSY_TX) { - /* Generate ReStart */ - hi2c->Instance->CR1 |= I2C_CR1_START; - } - - /* Wait until SB flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - if (hi2c->Init.AddressingMode == I2C_ADDRESSINGMODE_7BIT) { - /* Send slave address */ - hi2c->Instance->DR = I2C_7BIT_ADD_READ(DevAddress); - } - - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - return HAL_OK; -} - -/** - * @brief Master sends target device address followed by internal memory address for write request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_RequestMemoryWrite(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) { - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Wait until SB flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Send slave address */ - hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* If Memory address size is 8Bit */ - if (MemAddSize == I2C_MEMADD_SIZE_8BIT) { - /* Send Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); - } - /* If Memory address size is 16Bit */ - else { - /* Send MSB of Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_MSB(MemAddress); - - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Send LSB of Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); - } - - return HAL_OK; -} - -/** - * @brief Master sends target device address followed by internal memory address for read request. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @param DevAddress Target device address: The device 7 bits address value - * in datasheet must be shifted to the left before calling the interface - * @param MemAddress Internal memory address - * @param MemAddSize Size of internal memory address - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_RequestMemoryRead(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) { - /* Enable Acknowledge */ - hi2c->Instance->CR1 |= I2C_CR1_ACK; - - /* Generate Start */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Wait until SB flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Send slave address */ - hi2c->Instance->DR = I2C_7BIT_ADD_WRITE(DevAddress); - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Clear ADDR flag */ - __HAL_I2C_CLEAR_ADDRFLAG(hi2c); - - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* If Memory address size is 8Bit */ - if (MemAddSize == I2C_MEMADD_SIZE_8BIT) { - /* Send Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); - } - /* If Memory address size is 16Bit */ - else { - /* Send MSB of Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_MSB(MemAddress); - - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Send LSB of Memory Address */ - hi2c->Instance->DR = I2C_MEM_ADD_LSB(MemAddress); - } - - /* Wait until TXE flag is set */ - if (I2C_WaitOnTXEFlagUntilTimeout(hi2c, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - /* Generate Restart */ - hi2c->Instance->CR1 |= I2C_CR1_START; - - /* Wait until SB flag is set */ - if (I2C_WaitOnFlagUntilTimeout(hi2c, I2C_FLAG_SB, RESET, Timeout, Tickstart) != HAL_OK) { - return HAL_TIMEOUT; - } - - /* Send slave address */ - hi2c->Instance->DR = I2C_7BIT_ADD_READ(DevAddress); - - /* Wait until ADDR flag is set */ - if (I2C_WaitOnMasterAddressFlagUntilTimeout(hi2c, I2C_FLAG_ADDR, Timeout, Tickstart) != HAL_OK) { - if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { - return HAL_ERROR; - } else { - return HAL_TIMEOUT; - } - } - - return HAL_OK; -} - -/** - * @brief DMA I2C process complete callback. - * @param hdma DMA handle - * @retval None - */ -static void I2C_DMAXferCplt(DMA_HandleTypeDef *hdma) { - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - - /* Declaration of temporary variable to prevent undefined behavior of volatile usage */ - uint32_t CurrentState = hi2c->State; - uint32_t CurrentMode = hi2c->Mode; - - if ((CurrentState == HAL_I2C_STATE_BUSY_TX) || ((CurrentState == HAL_I2C_STATE_BUSY_RX) && (CurrentMode == HAL_I2C_MODE_SLAVE))) { - /* Disable DMA Request */ - hi2c->Instance->CR2 &= ~I2C_CR2_DMAEN; - - hi2c->XferCount = 0U; - - /* Enable EVT and ERR interrupt */ - __HAL_I2C_ENABLE_IT(hi2c, I2C_IT_EVT | I2C_IT_ERR); - } else { - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Disable Last DMA */ - hi2c->Instance->CR2 &= ~I2C_CR2_LAST; - - /* Disable DMA Request */ - hi2c->Instance->CR2 &= ~I2C_CR2_DMAEN; - - hi2c->XferCount = 0U; - - /* Check if Errors has been detected during transfer */ - if (hi2c->ErrorCode != HAL_I2C_ERROR_NONE) { - HAL_I2C_ErrorCallback(hi2c); - } else { - hi2c->State = HAL_I2C_STATE_READY; - - if (hi2c->Mode == HAL_I2C_MODE_MEM) { - hi2c->Mode = HAL_I2C_MODE_NONE; - - HAL_I2C_MemRxCpltCallback(hi2c); - } else { - hi2c->Mode = HAL_I2C_MODE_NONE; - - HAL_I2C_MasterRxCpltCallback(hi2c); - } - } - } -} - -/** - * @brief DMA I2C communication error callback. - * @param hdma DMA handle - * @retval None - */ -static void I2C_DMAError(DMA_HandleTypeDef *hdma) { - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - hi2c->XferCount = 0U; - - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - hi2c->ErrorCode |= HAL_I2C_ERROR_DMA; - - HAL_I2C_ErrorCallback(hi2c); -} - -/** - * @brief DMA I2C communication abort callback - * (To be called at end of DMA Abort procedure). - * @param hdma: DMA handle. - * @retval None - */ -static void I2C_DMAAbort(DMA_HandleTypeDef *hdma) { - I2C_HandleTypeDef *hi2c = (I2C_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - - /* Disable Acknowledge */ - hi2c->Instance->CR1 &= ~I2C_CR1_ACK; - - hi2c->XferCount = 0U; - - /* Reset XferAbortCallback */ - hi2c->hdmatx->XferAbortCallback = NULL; - hi2c->hdmarx->XferAbortCallback = NULL; - - /* Check if come from abort from user */ - if (hi2c->State == HAL_I2C_STATE_ABORT) { - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - - /* Disable I2C peripheral to prevent dummy data in buffer */ - __HAL_I2C_DISABLE(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - HAL_I2C_AbortCpltCallback(hi2c); - } else { - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Disable I2C peripheral to prevent dummy data in buffer */ - __HAL_I2C_DISABLE(hi2c); - - /* Call the corresponding callback to inform upper layer of End of Transfer */ - HAL_I2C_ErrorCallback(hi2c); - } -} - -/** - * @brief This function handles I2C Communication Timeout. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @param Flag specifies the I2C flag to check. - * @param Status The new Flag status (SET or RESET). - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t Tickstart) { - /* Wait until flag is set */ - while ((__HAL_I2C_GET_FLAG(hi2c, Flag) ? SET : RESET) == Status) { - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) { - if ((Timeout == 0U) || ((HAL_GetTick() - Tickstart) > Timeout)) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - hi2c->Mode = HAL_I2C_MODE_NONE; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } - } - - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for Master addressing phase. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for I2C module - * @param Flag specifies the I2C flag to check. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnMasterAddressFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Flag, uint32_t Timeout, uint32_t Tickstart) { - while (__HAL_I2C_GET_FLAG(hi2c, Flag) == RESET) { - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF) == SET) { - /* Generate Stop */ - hi2c->Instance->CR1 |= I2C_CR1_STOP; - - /* Clear AF Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - hi2c->ErrorCode = HAL_I2C_ERROR_AF; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) { - if ((Timeout == 0U) || ((HAL_GetTick() - Tickstart) > Timeout)) { - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } - } - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for specific usage of TXE flag. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnTXEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) { - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_TXE) == RESET) { - /* Check if a NACK is detected */ - if (I2C_IsAcknowledgeFailed(hi2c) != HAL_OK) { - return HAL_ERROR; - } - - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) { - if ((Timeout == 0U) || ((HAL_GetTick() - Tickstart) > Timeout)) { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } - } - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for specific usage of BTF flag. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnBTFFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) { - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_BTF) == RESET) { - /* Check if a NACK is detected */ - if (I2C_IsAcknowledgeFailed(hi2c) != HAL_OK) { - return HAL_ERROR; - } - - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) { - if ((Timeout == 0U) || ((HAL_GetTick() - Tickstart) > Timeout)) { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } - } - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for specific usage of STOP flag. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnSTOPFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) { - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF) == RESET) { - /* Check if a NACK is detected */ - if (I2C_IsAcknowledgeFailed(hi2c) != HAL_OK) { - return HAL_ERROR; - } - - /* Check for the Timeout */ - if ((Timeout == 0U) || ((HAL_GetTick() - Tickstart) > Timeout)) { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } - return HAL_OK; -} - -/** - * @brief This function handles I2C Communication Timeout for specific usage of RXNE flag. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @param Timeout Timeout duration - * @param Tickstart Tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_WaitOnRXNEFlagUntilTimeout(I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) { - - while (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_RXNE) == RESET) { - /* Check if a STOPF is detected */ - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_STOPF) == SET) { - /* Clear STOP Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_STOPF); - - hi2c->ErrorCode = HAL_I2C_ERROR_NONE; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - - /* Check for the Timeout */ - if ((Timeout == 0U) || ((HAL_GetTick() - Tickstart) > Timeout)) { - hi2c->ErrorCode |= HAL_I2C_ERROR_TIMEOUT; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_TIMEOUT; - } - } - return HAL_OK; -} - -/** - * @brief This function handles Acknowledge failed detection during an I2C Communication. - * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains - * the configuration information for the specified I2C. - * @retval HAL status - */ -static HAL_StatusTypeDef I2C_IsAcknowledgeFailed(I2C_HandleTypeDef *hi2c) { - if (__HAL_I2C_GET_FLAG(hi2c, I2C_FLAG_AF) == SET) { - /* Clear NACKF Flag */ - __HAL_I2C_CLEAR_FLAG(hi2c, I2C_FLAG_AF); - - hi2c->ErrorCode = HAL_I2C_ERROR_AF; - hi2c->PreviousState = I2C_STATE_NONE; - hi2c->State = HAL_I2C_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hi2c); - - return HAL_ERROR; - } - return HAL_OK; -} -/** - * @} - */ - -#endif /* HAL_I2C_MODULE_ENABLED */ - -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ diff --git a/source/Core/BSP/Miniware/configuration.h b/source/Core/BSP/Miniware/configuration.h index c0c63d3911..f3685592c2 100644 --- a/source/Core/BSP/Miniware/configuration.h +++ b/source/Core/BSP/Miniware/configuration.h @@ -172,6 +172,9 @@ #define TIP_RESISTANCE 75 // x10 ohms, 7.5 typical for ts100 tips #define POW_DC +#define I2C_SOFT_BUS_1 1 +#define OLED_I2CBB1 1 +#define ACCEL_I2CBB1 1 #define TEMP_TMP36 #endif /* TS100 */ @@ -234,6 +237,9 @@ #define POW_QC #define TEMP_TMP36 +#define I2C_SOFT_BUS_1 1 +#define OLED_I2CBB1 1 +#define ACCEL_I2CBB1 1 #endif /* TS80 */ #ifdef MODEL_TS80P @@ -250,6 +256,7 @@ #define I2C_SOFT_BUS_2 1 #define I2C_SOFT_BUS_1 1 #define OLED_I2CBB1 1 +#define ACCEL_I2CBB1 1 #define SC7_ORI_FLIP #endif /* TS80P */ diff --git a/source/Core/BSP/Miniware/preRTOS.cpp b/source/Core/BSP/Miniware/preRTOS.cpp index 2dbfa8b3e0..2f903bfa48 100644 --- a/source/Core/BSP/Miniware/preRTOS.cpp +++ b/source/Core/BSP/Miniware/preRTOS.cpp @@ -25,7 +25,4 @@ void preRToSInit() { #ifdef I2C_SOFT_BUS_1 I2CBB1::init(); #endif - - /* Init the IPC objects */ - FRToSI2C::FRToSInit(); } diff --git a/source/Core/BSP/Miniware/stm32f1xx_hal_msp.c b/source/Core/BSP/Miniware/stm32f1xx_hal_msp.c index e8f23a1f8a..de4a46d0c5 100644 --- a/source/Core/BSP/Miniware/stm32f1xx_hal_msp.c +++ b/source/Core/BSP/Miniware/stm32f1xx_hal_msp.c @@ -81,55 +81,6 @@ void HAL_ADC_MspInit(ADC_HandleTypeDef *hadc) { } } -void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c) { - - GPIO_InitTypeDef GPIO_InitStruct; - /**I2C1 GPIO Configuration - PB6 ------> I2C1_SCL - PB7 ------> I2C1_SDA - */ - GPIO_InitStruct.Pin = SCL_Pin | SDA_Pin; - GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; - GPIO_InitStruct.Pull = GPIO_PULLUP; - GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; - HAL_GPIO_Init(SCL_GPIO_Port, &GPIO_InitStruct); - - /* Peripheral clock enable */ - __HAL_RCC_I2C1_CLK_ENABLE(); - /* I2C1 DMA Init */ - /* I2C1_RX Init */ - hdma_i2c1_rx.Instance = DMA1_Channel7; - hdma_i2c1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; - hdma_i2c1_rx.Init.PeriphInc = DMA_PINC_DISABLE; - hdma_i2c1_rx.Init.MemInc = DMA_MINC_ENABLE; - hdma_i2c1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; - hdma_i2c1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; - hdma_i2c1_rx.Init.Mode = DMA_NORMAL; - hdma_i2c1_rx.Init.Priority = DMA_PRIORITY_LOW; - HAL_DMA_Init(&hdma_i2c1_rx); - - __HAL_LINKDMA(hi2c, hdmarx, hdma_i2c1_rx); - - /* I2C1_TX Init */ - hdma_i2c1_tx.Instance = DMA1_Channel6; - hdma_i2c1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; - hdma_i2c1_tx.Init.PeriphInc = DMA_PINC_DISABLE; - hdma_i2c1_tx.Init.MemInc = DMA_MINC_ENABLE; - hdma_i2c1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; - hdma_i2c1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; - hdma_i2c1_tx.Init.Mode = DMA_NORMAL; - hdma_i2c1_tx.Init.Priority = DMA_PRIORITY_MEDIUM; - HAL_DMA_Init(&hdma_i2c1_tx); - - __HAL_LINKDMA(hi2c, hdmatx, hdma_i2c1_tx); - - /* I2C1 interrupt Init */ - HAL_NVIC_SetPriority(I2C1_EV_IRQn, 15, 0); - HAL_NVIC_EnableIRQ(I2C1_EV_IRQn); - HAL_NVIC_SetPriority(I2C1_ER_IRQn, 15, 0); - HAL_NVIC_EnableIRQ(I2C1_ER_IRQn); -} - void HAL_TIM_Base_MspInit(TIM_HandleTypeDef *htim_base) { if (htim_base->Instance == TIM3) { /* Peripheral clock enable */ diff --git a/source/Core/BSP/Miniware/stm32f1xx_it.c b/source/Core/BSP/Miniware/stm32f1xx_it.c index 4e1b04ca08..5b9657e61d 100644 --- a/source/Core/BSP/Miniware/stm32f1xx_it.c +++ b/source/Core/BSP/Miniware/stm32f1xx_it.c @@ -57,12 +57,12 @@ void TIM4_IRQHandler(void) { HAL_TIM_IRQHandler(handle); } -void I2C1_EV_IRQHandler(void) { HAL_I2C_EV_IRQHandler(&hi2c1); } -void I2C1_ER_IRQHandler(void) { HAL_I2C_ER_IRQHandler(&hi2c1); } +void I2C1_EV_IRQHandler(void) {} +void I2C1_ER_IRQHandler(void) {} -void DMA1_Channel6_IRQHandler(void) { HAL_DMA_IRQHandler(&hdma_i2c1_tx); } +void DMA1_Channel6_IRQHandler(void) {} -void DMA1_Channel7_IRQHandler(void) { HAL_DMA_IRQHandler(&hdma_i2c1_rx); } +void DMA1_Channel7_IRQHandler(void) {} void EXTI9_5_IRQHandler(void) { #ifdef INT_PD_Pin