240d219b97
Updated documentation of the driver. Updated readme file. Separate hardware layer in SX1278_hw files.
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/**
|
|
* Author Wojciech Domski <Wojciech.Domski@gmail.com>
|
|
* www: www.Domski.pl
|
|
*
|
|
* Hardware layer for SX1278 LoRa module
|
|
*/
|
|
|
|
#include "SX1278_hw.h"
|
|
#include <string.h>
|
|
|
|
#include "gpio.h"
|
|
#include "spi.h"
|
|
|
|
__weak void SX1278_hw_init(SX1278_hw_t *hw) {
|
|
SX1278_hw_SetNSS(hw, 1);
|
|
HAL_GPIO_WritePin(hw->reset.port, hw->reset.pin, GPIO_PIN_SET);
|
|
}
|
|
|
|
__weak void SX1278_hw_SetNSS(SX1278_hw_t *hw, int value) {
|
|
HAL_GPIO_WritePin(hw->nss.port, hw->nss.pin,
|
|
(value == 1) ? GPIO_PIN_SET : GPIO_PIN_RESET);
|
|
}
|
|
|
|
__weak void SX1278_hw_Reset(SX1278_hw_t *hw) {
|
|
SX1278_hw_SetNSS(hw, 1);
|
|
HAL_GPIO_WritePin(hw->reset.port, hw->reset.pin, GPIO_PIN_RESET);
|
|
|
|
SX1278_hw_DelayMs(1);
|
|
|
|
HAL_GPIO_WritePin(hw->reset.port, hw->reset.pin, GPIO_PIN_SET);
|
|
|
|
SX1278_hw_DelayMs(100);
|
|
}
|
|
|
|
__weak void SX1278_hw_SPICommand(SX1278_hw_t *hw, uint8_t cmd) {
|
|
SX1278_hw_SetNSS(hw, 0);
|
|
HAL_SPI_Transmit(hw->spi, &cmd, 1, 1000);
|
|
while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY)
|
|
;
|
|
}
|
|
|
|
__weak uint8_t SX1278_hw_SPIReadByte(SX1278_hw_t *hw) {
|
|
uint8_t txByte = 0x00;
|
|
uint8_t rxByte = 0x00;
|
|
|
|
SX1278_hw_SetNSS(hw, 0);
|
|
HAL_SPI_TransmitReceive(hw->spi, &txByte, &rxByte, 1, 1000);
|
|
while (HAL_SPI_GetState(hw->spi) != HAL_SPI_STATE_READY)
|
|
;
|
|
return rxByte;
|
|
}
|
|
|
|
__weak void SX1278_hw_DelayMs(uint32_t msec) {
|
|
HAL_Delay(msec);
|
|
}
|
|
|
|
__weak int SX1278_hw_GetDIO0(SX1278_hw_t *hw) {
|
|
return (HAL_GPIO_ReadPin(hw->dio0.port, hw->dio0.pin) == GPIO_PIN_SET);
|
|
}
|
|
|