ESP32-IDF sx1262驱动代码

以下是使用ESP32-IDF驱动sx1262的代码示例：

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/spi_master.h"

// SPI Pins
#define PIN_NUM_MISO 19
#define PIN_NUM_MOSI 23
#define PIN_NUM_CLK  18
#define PIN_NUM_CS   5

// SX1262 Pins
#define PIN_NUM_RESET 14
#define PIN_NUM_BUSY  27

// SPI Config
spi_device_handle_t spi;
spi_bus_config_t bus_config = {
    .mosi_io_num = PIN_NUM_MOSI,
    .miso_io_num = PIN_NUM_MISO,
    .sclk_io_num = PIN_NUM_CLK,
    .quadwp_io_num = -1,
    .quadhd_io_num = -1
};
spi_device_interface_config_t dev_config = {
    .clock_speed_hz = 1000000,
    .mode = 0,
    .spics_io_num = PIN_NUM_CS,
    .queue_size = 1
};

// SX1262 Config
#define SX1262_BUFFER_SIZE 256
uint8_t sx1262_buffer[SX1262_BUFFER_SIZE];
#define SX1262_WAIT_BUSY() while(gpio_get_level(PIN_NUM_BUSY))

void sx1262_reset() {
    gpio_set_direction(PIN_NUM_RESET, GPIO_MODE_OUTPUT);
    gpio_set_level(PIN_NUM_RESET, 0);
    vTaskDelay(pdMS_TO_TICKS(10));
    gpio_set_level(PIN_NUM_RESET, 1);
    vTaskDelay(pdMS_TO_TICKS(10));
}

void sx1262_write(uint8_t *data, size_t len) {
    spi_transaction_t t = {
        .length = len * 8,
        .tx_buffer = data,
        .flags = SPI_TRANS_USE_TXDATA
    };
    spi_device_transmit(spi, &t);
}

void sx1262_read(uint8_t *data, size_t len) {
    spi_transaction_t t = {
        .length = len * 8,
        .rx_buffer = data,
        .flags = SPI_TRANS_USE_RXDATA
    };
    spi_device_transmit(spi, &t);
}

void sx1262_wait_busy() {
    while(gpio_get_level(PIN_NUM_BUSY));
}

void app_main() {
    // Initialize SPI
    spi_bus_initialize(HSPI_HOST, &bus_config, 1);
    spi_bus_add_device(HSPI_HOST, &dev_config, &spi);

    // Initialize SX1262
    sx1262_reset();
    sx1262_wait_busy();
    sx1262_buffer[0] = 0x01; // Write register command
    sx1262_buffer[1] = 0x00; // Address of register to write
    sx1262_buffer[2] = 0x01; // Value to write
    sx1262_write(sx1262_buffer, 3);
    sx1262_wait_busy();
    sx1262_buffer[0] = 0x00; // Read register command
    sx1262_buffer[1] = 0x00; // Address of register to read
    sx1262_write(sx1262_buffer, 2);
    sx1262_wait_busy();
    sx1262_read(sx1262_buffer, 1);
    printf("Read value: %02x\n", sx1262_buffer[0]);

    // Cleanup
    spi_bus_remove_device(spi);
}

这个示例代码演示了如何使用ESP32-IDF驱动sx1262芯片。它初始化了SPI总线和SX1262芯片，并执行了一个读/写寄存器的操作。你需要根据你的应用程序进行适当的修改。