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feat(hepa-uv): add current sensing for the uv lights.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,9 @@ | ||
| #include "hepa-uv/firmware/uv_control_hardware.hpp" | ||
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| #include "hepa-uv/firmware/uv_hardware.h" | ||
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| using namespace uv_control_hardware; | ||
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| uint32_t UVControlHardware::get_uv_light_voltage() { | ||
| return get_uv_light_voltage_reading(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,106 @@ | ||
| #include "hepa-uv/firmware/uv_hardware.h" | ||
| #include "hepa-uv/firmware/utility_gpio.h" | ||
| #include "common/firmware/errors.h" | ||
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| #include "platform_specific_hal_conf.h" | ||
| #include "system_stm32g4xx.h" | ||
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| ADC_HandleTypeDef hadc1; | ||
| ADC_ChannelConfTypeDef hadc1_sConfig = {0}; | ||
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| void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc) { | ||
| GPIO_InitTypeDef GPIO_InitStruct = {0}; | ||
| if (hadc->Instance == ADC1) { | ||
| __HAL_RCC_ADC12_CLK_ENABLE(); | ||
| __HAL_RCC_GPIOA_CLK_ENABLE(); | ||
| /** ADC1 GPIO Configuration | ||
| PA0 ------> ADC1_IN1 | ||
| */ | ||
| GPIO_InitStruct.Pin = UV_SNS_MCU_PIN; | ||
| GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; | ||
| GPIO_InitStruct.Pull = GPIO_NOPULL; | ||
| HAL_GPIO_Init(UV_SNS_MCU_PORT, &GPIO_InitStruct); | ||
| } | ||
| } | ||
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| static void MX_ADC_Init(ADC_TypeDef* adc, uint32_t channel) { | ||
| ADC_MultiModeTypeDef multimode = {0}; | ||
| ADC_ChannelConfTypeDef* hadc_sConfig; | ||
| ADC_HandleTypeDef* hadc; | ||
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| if (adc == ADC1) { | ||
| hadc = &hadc1; | ||
| hadc_sConfig = &hadc1_sConfig; | ||
| } else { | ||
| Error_Handler(); | ||
| return; | ||
| } | ||
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| hadc->Instance = adc; | ||
| hadc->Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2; | ||
| hadc->Init.Resolution = ADC_RESOLUTION_12B; | ||
| hadc->Init.DataAlign = ADC_DATAALIGN_RIGHT; | ||
| hadc->Init.GainCompensation = 0; | ||
| hadc->Init.ScanConvMode = ADC_SCAN_DISABLE; | ||
| hadc->Init.EOCSelection = ADC_EOC_SINGLE_CONV; | ||
| hadc->Init.LowPowerAutoWait = DISABLE; | ||
| hadc->Init.ContinuousConvMode = DISABLE; | ||
| hadc->Init.NbrOfConversion = 1; | ||
| hadc->Init.DiscontinuousConvMode = DISABLE; | ||
| hadc->Init.ExternalTrigConv = ADC_SOFTWARE_START; | ||
| hadc->Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; | ||
| hadc->Init.DMAContinuousRequests = DISABLE; | ||
| hadc->Init.Overrun = ADC_OVR_DATA_PRESERVED; | ||
| hadc->Init.OversamplingMode = DISABLE; | ||
| if (HAL_ADC_Init(hadc) != HAL_OK) Error_Handler(); | ||
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| // Configure the ADC multi-mode | ||
| multimode.Mode = ADC_MODE_INDEPENDENT; | ||
| if (HAL_ADCEx_MultiModeConfigChannel(hadc, &multimode) != HAL_OK) | ||
| { | ||
| Error_Handler(); | ||
| } | ||
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| // Configure Regular Channel | ||
| hadc_sConfig->Channel = channel; | ||
| hadc_sConfig->Rank = ADC_REGULAR_RANK_1; | ||
| hadc_sConfig->SamplingTime = ADC_SAMPLETIME_2CYCLES_5; | ||
| hadc_sConfig->SingleDiff = ADC_DIFFERENTIAL_ENDED; | ||
| hadc_sConfig->OffsetNumber = ADC_OFFSET_NONE; | ||
| hadc_sConfig->Offset = 0; | ||
| if (HAL_ADC_ConfigChannel(hadc, hadc_sConfig) != HAL_OK) | ||
| { | ||
| Error_Handler(); | ||
| } | ||
| } | ||
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| uint32_t get_adc_reading(ADC_HandleTypeDef* hadc, uint32_t channel) { | ||
| // Calibrate the ADC to get more accurate reading | ||
| if (HAL_ADCEx_Calibration_Start(hadc, ADC_DIFFERENTIAL_ENDED) != HAL_OK) Error_Handler(); | ||
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| // Configure the Channel | ||
| ADC_ChannelConfTypeDef sConfig = {0}; | ||
| sConfig.Channel = channel; | ||
| sConfig.Rank = ADC_REGULAR_RANK_1; | ||
| sConfig.SamplingTime = ADC_SAMPLETIME_6CYCLES_5; | ||
| if (HAL_ADC_ConfigChannel(hadc, &sConfig) != HAL_OK) Error_Handler(); | ||
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| // Start The adc | ||
| if (HAL_ADC_Start(hadc) != HAL_OK) Error_Handler(); | ||
| // Wait for convertion and stop adc | ||
| HAL_ADC_PollForConversion(hadc, HAL_MAX_DELAY); | ||
| HAL_ADC_Stop(hadc); | ||
| // return the adc conversion result | ||
| return HAL_ADC_GetValue(hadc); | ||
| } | ||
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| uint32_t get_uv_light_voltage_reading(void) { | ||
| uint32_t adc_reading = get_adc_reading(&hadc1, ADC_CHANNEL_1); | ||
| // mvolts = (ADC Reading * System mV) / 12-bit adc resolution | ||
| return (uint32_t)(adc_reading*3300)/4095;; | ||
| } | ||
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| void initialize_adc_hardware() { | ||
| // Initialize the adc for uv current sense | ||
| MX_ADC_Init(ADC1, ADC_CHANNEL_1); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,18 @@ | ||
| #pragma once | ||
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| #include <stdint.h> | ||
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| #include "platform_specific_hal_conf.h" | ||
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif // __cplusplus | ||
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| extern ADC_HandleTypeDef hadc1; | ||
| extern ADC_ChannelConfTypeDef hadc1_sConfig; | ||
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| void initialize_adc_hardware(); | ||
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| #ifdef __cplusplus | ||
| } // extern "C" | ||
| #endif // __cplusplus |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| #pragma once | ||
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| #include "hepa-uv/core/interfaces.hpp" | ||
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| namespace uv_control_hardware { | ||
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| class UVControlHardware : public uv_control::UVControlInterface { | ||
| public: | ||
| UVControlHardware() = default; | ||
| UVControlHardware(const UVControlHardware&) = delete; | ||
| UVControlHardware(UVControlHardware&&) = delete; | ||
| auto operator=(UVControlHardware&&) -> UVControlHardware& = delete; | ||
| auto operator=(const UVControlHardware&) -> UVControlHardware& = delete; | ||
| ~UVControlHardware() final = default; | ||
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| // TODO: (ba, 2024-03-18): Now that we have a uv control interface, | ||
| // lets migrate gpio.set/reset to it, so we can de-couple hardware | ||
| // specific functionality from logic so we can fix simulation. | ||
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| uint32_t get_uv_light_voltage() final; | ||
| }; | ||
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| } // namespace uv_control_hardware |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| #pragma once | ||
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| #include <stdint.h> | ||
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif // __cplusplus | ||
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| uint32_t get_uv_light_voltage_reading(void); | ||
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| #ifdef __cplusplus | ||
| } // extern "C" | ||
| #endif // __cplusplus |