esp32-idf sx1268-cad工作代码

以下是使用ESP32 IDF开发的SX1268 LoRa模块工作代码示例：

#include "driver/spi_master.h"
#include "driver/gpio.h"
#include "sx126x.h"

#define PIN_NUM_WAKEUP 23
#define PIN_NUM_MODE 17
#define PIN_NUM_MISO 19
#define PIN_NUM_MOSI 27
#define PIN_NUM_CLK  5
#define PIN_NUM_CS   18

void spi_master_init()
{
  esp_err_t ret;

  spi_bus_config_t buscfg = {
    .miso_io_num = PIN_NUM_MISO,
    .mosi_io_num = PIN_NUM_MOSI,
    .sclk_io_num = PIN_NUM_CLK,
    .quadwp_io_num = -1,
    .quadhd_io_num = -1,
    .max_transfer_sz = 0
  };

  spi_device_interface_config_t devcfg = {
    .command_bits = 0,
    .address_bits = 0,
    .dummy_bits = 0,
    .mode = 0,
    .duty_cycle_pos = 128,
    .cs_ena_pretrans = 0,
    .cs_ena_posttrans = 0,
    .clock_speed_hz = 1*1000*1000, //1MHz clock
    .input_delay_ns = 0,
    .spics_io_num = PIN_NUM_CS,
    .flags = 0,
    .queue_size = 1,
    .pre_cb = NULL,
    .post_cb = NULL,
    .hd_mode = false
  };

  //Initialize the SPI bus
  ret=spi_bus_initialize(HSPI_HOST, &buscfg, 1);
  ESP_ERROR_CHECK(ret);

  //Attach the SX126x to the SPI bus
  ret=spi_bus_add_device(HSPI_HOST, &devcfg, &spi);
  ESP_ERROR_CHECK(ret);
}

void sx126x_wakeup()
{
  //Configure the wakeup pin as output
  gpio_config_t io_conf = {
    .pin_bit_mask = (1ULL << PIN_NUM_WAKEUP),
    .mode = GPIO_MODE_OUTPUT,
    .pull_up_en = GPIO_PULLUP_DISABLE,
    .pull_down_en = GPIO_PULLDOWN_DISABLE,
    .intr_type = GPIO_INTR_DISABLE
  };
  gpio_config(&io_conf);

  //Send a pulse on the wakeup pin to wake up SX126x
  gpio_set_level(PIN_NUM_WAKEUP, 0);
  ets_delay_us(200);
  gpio_set_level(PIN_NUM_WAKEUP, 1);
  ets_delay_us(200);
  gpio_set_level(PIN_NUM_WAKEUP, 0);

  //Wait for SX126x to wake up
  ets_delay_us(5000);
}

void sx126x_set_mode(uint8_t mode)
{
  //Configure the mode pin as output
  gpio_config_t io_conf = {
    .pin_bit_mask = (1ULL << PIN_NUM_MODE),
    .mode = GPIO_MODE_OUTPUT,
    .pull_up_en = GPIO_PULLUP_DISABLE,
    .pull_down_en = GPIO_PULLDOWN_DISABLE,
    .intr_type = GPIO_INTR_DISABLE
  };
  gpio_config(&io_conf);

  //Set the mode pin to the desired mode
  gpio_set_level(PIN_NUM_MODE, mode);
}

void sx126x_init()
{
  spi_master_init();
  sx126x_wakeup();
  sx126x_set_mode(1); //Set SX1268 to LoRa mode
  //Perform the rest of SX126x initialization here
}

int main(void)
{
  sx126x_init();
  //Rest of the application logic here
  return 0;
}

在这个示例中，我们结合了前面的示例代码，包括SPI总线初始化、唤醒SX1268、设置SX1268模式等。在main函数中，我们初始化SX1268，并在后续的应用逻辑中使用它。

请注意，这只是一个示例代码，您需要根据您的实际硬件和应用程序要求进行修改。