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xiao-nrf52 : initial support for meshcore

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initial config for xiao_nrf52

repeater role for xiao-nrf52

xiao-nrf52 correction on bat voltage

xiao-nrf52 this file should not be here ...
This commit is contained in:
Florent de Lamotte
2025-04-07 18:14:39 +02:00
committed by Florent
parent d7e6a361b5
commit 82bcd74932
8 changed files with 621 additions and 0 deletions
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149
variants/xiao_nrf52/variant.h Normal file
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#ifndef _SEEED_XIAO_NRF52840_H_
#define _SEEED_XIAO_NRF52840_H_
/** Master clock frequency */
#define VARIANT_MCK (64000000ul)
#define USE_LFXO // Board uses 32khz crystal for LF
//#define USE_LFRC // Board uses RC for LF
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include "WVariant.h"
#ifdef __cplusplus
extern "C"
{
#endif // __cplusplus
#define PINS_COUNT (33)
#define NUM_DIGITAL_PINS (33)
#define NUM_ANALOG_INPUTS (8)
#define NUM_ANALOG_OUTPUTS (0)
// LEDs
#define PIN_LED (LED_RED)
#define LED_PWR (PINS_COUNT)
#define PIN_NEOPIXEL (PINS_COUNT)
#define NEOPIXEL_NUM (0)
#define LED_BUILTIN (PIN_LED)
#define LED_RED (11)
#define LED_GREEN (13)
#define LED_BLUE (12)
#define LED_STATE_ON (1) // State when LED is litted
// Buttons
#define PIN_BUTTON1 (PINS_COUNT)
// Digital PINs
static const uint8_t D0 = 0 ;
static const uint8_t D1 = 1 ;
static const uint8_t D2 = 2 ;
static const uint8_t D3 = 3 ;
static const uint8_t D4 = 4 ;
static const uint8_t D5 = 5 ;
static const uint8_t D6 = 6 ;
static const uint8_t D7 = 7 ;
static const uint8_t D8 = 8 ;
static const uint8_t D9 = 9 ;
static const uint8_t D10 = 10;
#define VBAT_ENABLE (14) // Output LOW to enable reading of the BAT voltage.
// https://wiki.seeedstudio.com/XIAO_BLE#q3-what-are-the-considerations-when-using-xiao-nrf52840-sense-for-battery-charging
#define PIN_CHARGING_CURRENT (22) // Battery Charging current
// https://wiki.seeedstudio.com/XIAO_BLE#battery-charging-current
// Analog pins
#define PIN_A0 (0)
#define PIN_A1 (1)
#define PIN_A2 (2)
#define PIN_A3 (3)
#define PIN_A4 (4)
#define PIN_A5 (5)
#define PIN_VBAT (32) // Read the BAT voltage.
// https://wiki.seeedstudio.com/XIAO_BLE#q3-what-are-the-considerations-when-using-xiao-nrf52840-sense-for-battery-charging
#define BAT_NOT_CHARGING (23) // LOW when charging
#define AREF_VOLTAGE (3.0)
#define ADC_MULTIPLIER (3.0F) // 1M, 512k divider bridge
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;
#define ADC_RESOLUTION (12)
// Other pins
#define PIN_NFC1 (30)
#define PIN_NFC2 (31)
// Serial interfaces
#define PIN_SERIAL1_RX (7)
#define PIN_SERIAL1_TX (6)
// SPI Interfaces
#define SPI_INTERFACES_COUNT (2)
#define PIN_SPI_MISO (9)
#define PIN_SPI_MOSI (10)
#define PIN_SPI_SCK (8)
static const uint8_t SS = D3; // NSS for sx ?
static const uint8_t MOSI = PIN_SPI_MOSI;
static const uint8_t MISO = PIN_SPI_MISO;
static const uint8_t SCK = PIN_SPI_SCK ;
#define PIN_SPI1_MISO (25)
#define PIN_SPI1_MOSI (26)
#define PIN_SPI1_SCK (29)
// Wire Interfaces
#define WIRE_INTERFACES_COUNT (1)
#define PIN_WIRE_SDA (17) // 4 and 5 are used for the sx1262 !
#define PIN_WIRE_SCL (16) // use WIRE1_SDA
static const uint8_t SDA = PIN_WIRE_SDA;
static const uint8_t SCL = PIN_WIRE_SCL;
//#define PIN_WIRE1_SDA (17)
//#define PIN_WIRE1_SCL (16)
#define PIN_LSM6DS3TR_C_POWER (15)
#define PIN_LSM6DS3TR_C_INT1 (18)
// PDM Interfaces
#define PIN_PDM_PWR (19)
#define PIN_PDM_CLK (20)
#define PIN_PDM_DIN (21)
// QSPI Pins
#define PIN_QSPI_SCK (24)
#define PIN_QSPI_CS (25)
#define PIN_QSPI_IO0 (26)
#define PIN_QSPI_IO1 (27)
#define PIN_QSPI_IO2 (28)
#define PIN_QSPI_IO3 (29)
// On-board QSPI Flash
#define EXTERNAL_FLASH_DEVICES (P25Q16H)
#define EXTERNAL_FLASH_USE_QSPI
#ifdef __cplusplus
}
#endif
/*----------------------------------------------------------------------------
* Arduino objects - C++ only
*----------------------------------------------------------------------------*/
#endif