pins_arduino.h

#pragma once
#include <stdint.h>
#include <macros.h>

#ifndef __PINS_ARDUINO__
#define __PINS_ARDUINO__

#define ANALOG_CONFIG

/* Analog reference options 
 * Different possibilities available combining Reference and Gain
 */
enum _AnalogReferenceMode
{
  AR_VDD,         // 3.3 V
  AR_INTERNAL,    // 0.6 V
  AR_INTERNAL1V2, // 1.2 V
  AR_INTERNAL2V4  // 2.4 V
};

/* Analog acquisition time options */
enum _AnalogAcquisitionTime
{
  AT_3_US,         
  AT_5_US,    
  AT_10_US, // Default value
  AT_15_US,
  AT_20_US,  
  AT_40_US  
};

// Frequency of the board main oscillator
#define VARIANT_MAINOSC (32768ul)

// Master clock frequency
#define VARIANT_MCK     (64000000ul)

// Pins
// ----

// Number of pins defined in PinDescription array
#ifdef __cplusplus
extern "C" unsigned int PINCOUNT_fn();
#endif
#define PINS_COUNT           (PINCOUNT_fn())
#define NUM_DIGITAL_PINS     (21u)
#define NUM_ANALOG_INPUTS    (8u)
#define NUM_ANALOG_OUTPUTS   (0u)

extern PinName digitalPinToPinName(pin_size_t P);

// LEDs
// ----
#define PIN_LED     (13u)
#define LED_BUILTIN PIN_LED
#define LEDR        (22u)
#define LEDG        (23u)
#define LEDB        (24u)
#define LED_PWR     (25u)

// Analog pins
// -----------
#define PIN_A0 (14u)
#define PIN_A1 (15u)
#define PIN_A2 (16u)
#define PIN_A3 (17u)
#define PIN_A4 (18u)
#define PIN_A5 (19u)
#define PIN_A6 (20u)
#define PIN_A7 (21u)
static const uint8_t A0  = PIN_A0;
static const uint8_t A1  = PIN_A1;
static const uint8_t A2  = PIN_A2;
static const uint8_t A3  = PIN_A3;
static const uint8_t A4  = PIN_A4;
static const uint8_t A5  = PIN_A5;
static const uint8_t A6  = PIN_A6;
static const uint8_t A7  = PIN_A7;
#define ADC_RESOLUTION 12

// Digital pins
// -----------
#define D0  (0u)
#define D1  (1u)
#define D2  (2u)
#define D3  (3u)
#define D4  (4u)
#define D5  (5u)
#define D6  (6u)
#define D7  (7u)
#define D8  (8u)
#define D9  (9u)
#define D10 (10u)
#define D11 (11u)
#define D12 (12u)
#define D13 (13u)

/*
 * Serial interfaces
 */
// Serial (EDBG)
#define PIN_SERIAL_RX (1ul)
#define PIN_SERIAL_TX (0ul)

// SPI
#define PIN_SPI_MISO  (12u)
#define PIN_SPI_MOSI  (11u)
#define PIN_SPI_SCK   (13u)
#define PIN_SPI_SS    (10u)

static const uint8_t SS   = PIN_SPI_SS;   // SPI Slave SS not used. Set here only for reference.
static const uint8_t MOSI = PIN_SPI_MOSI;
static const uint8_t MISO = PIN_SPI_MISO;
static const uint8_t SCK  = PIN_SPI_SCK;

// Wire
#define PIN_WIRE_SDA        (18u)
#define PIN_WIRE_SCL        (19u)

#define PIN_WIRE_SDA1       (30u)
#define PIN_WIRE_SCL1       (31u)

#define PIN_ENABLE_I2C_PULLUP      (32u)
#define PIN_ENABLE_SENSORS_3V3     (33u)

#define PIN_INT_APDS (26u)

// PDM Interfaces
// ---------------
#define PIN_PDM_PWR	 (27)
#define PIN_PDM_CLK	 (28)
#define PIN_PDM_DIN	 (29)

// These serial port names are intended to allow libraries and architecture-neutral
// sketches to automatically default to the correct port name for a particular type
// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
// the first hardware serial port whose RX/TX pins are not dedicated to another use.
//
// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
//
// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
//
// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
//
// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
//
// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
//                            pins are NOT connected to anything by default.
#define SERIAL_PORT_USBVIRTUAL      SerialUSB
#define SERIAL_PORT_MONITOR         SerialUSB
#define SERIAL_PORT_HARDWARE        Serial1
#define SERIAL_PORT_HARDWARE_OPEN   Serial1


// Mbed specific defines
#define SERIAL_HOWMANY		1
#define SERIAL1_TX			(digitalPinToPinName(PIN_SERIAL_TX))
#define SERIAL1_RX			(digitalPinToPinName(PIN_SERIAL_RX))

#define SERIAL_CDC			1
#define HAS_UNIQUE_ISERIAL_DESCRIPTOR
#define BOARD_VENDORID		0x2341
#define BOARD_PRODUCTID		0x805a
#define BOARD_NAME			"Nano 33 BLE"

#define DFU_MAGIC_SERIAL_ONLY_RESET   0xb0

#define WIRE_HOWMANY		2

#define I2C_SDA				(digitalPinToPinName(PIN_WIRE_SDA))
#define I2C_SCL				(digitalPinToPinName(PIN_WIRE_SCL))
#define I2C_SDA1			(digitalPinToPinName(PIN_WIRE_SDA1))
#define I2C_SCL1			(digitalPinToPinName(PIN_WIRE_SCL1))

#define SPI_HOWMANY			1

#define SPI_MISO			(digitalPinToPinName(PIN_SPI_MISO))
#define SPI_MOSI			(digitalPinToPinName(PIN_SPI_MOSI))
#define SPI_SCK				(digitalPinToPinName(PIN_SPI_SCK))

#define digitalPinToPort(P)		(digitalPinToPinName(P)/32)

uint8_t getUniqueSerialNumber(uint8_t* name);
void _ontouch1200bps_();

#endif //__PINS_ARDUINO__