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171 lines
4.2 KiB
C
171 lines
4.2 KiB
C
#ifndef _SEEED_XIAO_NRF52840_SENSE_H_
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#define _SEEED_XIAO_NRF52840_SENSE_H_
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/** Master clock frequency */
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#define VARIANT_MCK (64000000ul)
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#define USE_LFXO // Board uses 32khz crystal for LF
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// #define USE_LFRC // Board uses RC for LF
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include "WVariant.h"
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#define PINS_COUNT (33)
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#define NUM_DIGITAL_PINS (33)
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#define NUM_ANALOG_INPUTS (8) // A6 is used for battery, A7 is analog reference
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#define NUM_ANALOG_OUTPUTS (0)
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// LEDs
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#define LED_RED 11
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#define LED_BLUE 12
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#define LED_GREEN 13
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#define PIN_LED1 LED_GREEN
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#define PIN_LED2 LED_BLUE
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#define PIN_LED3 LED_RED
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#define PIN_LED PIN_LED1
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#define LED_PWR (PINS_COUNT)
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#define LED_BUILTIN PIN_LED
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#define LED_STATE_ON 1 // State when LED is lit
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/*
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* Buttons
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*/
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// Digital PINs
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#define D0 (0ul)
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#define D1 (1ul)
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#define D2 (2ul)
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#define D3 (3ul)
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#define D4 (4ul)
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#define D5 (5ul)
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#define D6 (6ul)
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#define D7 (7ul)
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#define D8 (8ul)
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#define D9 (9ul)
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#define D10 (10ul)
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/*Due to the lack of pins,and have to make sure gps standby work well we have temporarily removed the button.
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There are some technical solutions that can solve this problem,
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and we are currently exploring and researching them*/
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// #define BUTTON_PIN D0 // This is the Program Button
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// // #define BUTTON_NEED_PULLUP 1
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// #define BUTTON_ACTIVE_LOW true
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// #define BUTTON_ACTIVE_PULLUP false
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/*
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* Analog pins
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*/
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#define PIN_A0 (0)
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#define PIN_A1 (1)
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#define PIN_A2 (32)
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#define PIN_A3 (3)
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#define PIN_A4 (4)
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#define PIN_A5 (5)
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#define PIN_VBAT (32)
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#define VBAT_ENABLE (14)
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static const uint8_t A0 = PIN_A0;
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static const uint8_t A1 = PIN_A1;
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static const uint8_t A2 = PIN_A2;
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static const uint8_t A3 = PIN_A3;
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static const uint8_t A4 = PIN_A4;
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static const uint8_t A5 = PIN_A5;
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#define ADC_RESOLUTION 12
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#define PIN_SERIAL2_RX (-1)
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#define PIN_SERIAL2_TX (-1)
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/*
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* SPI Interfaces
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*/
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#define SPI_INTERFACES_COUNT 1
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#define PIN_SPI_MISO (9)
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#define PIN_SPI_MOSI (10)
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#define PIN_SPI_SCK (8)
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static const uint8_t SS = D4;
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static const uint8_t MOSI = PIN_SPI_MOSI;
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static const uint8_t MISO = PIN_SPI_MISO;
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static const uint8_t SCK = PIN_SPI_SCK;
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// supported modules list
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#define USE_SX1262
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// common pinouts for SX126X modules
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#define SX126X_CS D4
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#define SX126X_DIO1 D1
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#define SX126X_BUSY D3
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#define SX126X_RESET D2
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#define SX126X_TXEN RADIOLIB_NC
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#define SX126X_RXEN D4
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#define SX126X_DIO2_AS_RF_SWITCH // DIO2 is used to control the RF switch really necessary!!!
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#define SX126X_DIO3_TCXO_VOLTAGE 1.8
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/*
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* Wire Interfaces
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*/
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#define I2C_NO_RESCAN // I2C is a bit finicky, don't scan too much
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#define WIRE_INTERFACES_COUNT 1 // 2
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#define PIN_WIRE_SDA (24) // change to use the correct pins if needed
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#define PIN_WIRE_SCL (25) // change to use the correct pins if needed
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static const uint8_t SDA = PIN_WIRE_SDA;
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static const uint8_t SCL = PIN_WIRE_SCL;
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// GPS L76KB
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#define GPS_L76K
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#ifdef GPS_L76K
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#define PIN_GPS_RX D6
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#define PIN_GPS_TX D7
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#define HAS_GPS 1
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#define GPS_BAUDRATE 9600
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#define GPS_THREAD_INTERVAL 50
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#define PIN_SERIAL1_RX PIN_GPS_TX
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#define PIN_SERIAL1_TX PIN_GPS_RX
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#define PIN_GPS_STANDBY D0
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#endif
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// Battery
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#define BAT_READ \
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14 // P0_14 = 14 Reads battery voltage from divider on signal board. (PIN_VBAT is reading voltage divider on XIAO and is
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// program pin 32 / or P0.31)
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#define BATTERY_SENSE_RESOLUTION_BITS 10
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#define CHARGE_LED 23 // P0_17 = 17 D23 YELLOW CHARGE LED
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#define HICHG 22 // P0_13 = 13 D22 Charge-select pin for Lipo for 100 mA instead of default 50mA charge
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// The battery sense is hooked to pin A0 (5)
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#define BATTERY_PIN PIN_VBAT // PIN_A0
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// ratio of voltage divider = 3.0 (R17=1M, R18=510k)
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#define ADC_MULTIPLIER 3 // 3.0 + a bit for being optimistic
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#ifdef __cplusplus
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}
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#endif
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/*----------------------------------------------------------------------------
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* Arduino objects - C++ only
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*----------------------------------------------------------------------------*/
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#endif
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