我需要C的代码

好的，这里是一个简单的基于STM32L051芯片和SX1268模块的C语言代码示例，实现了与SX1268的SPI通信和数据发送：

#include "stm32l051xx.h"

#define SPI1_CS_PIN   GPIO_PIN_4
#define SPI1_CS_PORT  GPIOA

void SPI1_Init(void)
{
    RCC->IOPENR |= RCC_IOPENR_GPIOAEN;     // Enable GPIOA clock
    RCC->APB2ENR |= RCC_APB2ENR_SPI1EN;   // Enable SPI1 clock

    GPIO_InitTypeDef GPIO_InitStruct = {0};
    GPIO_InitStruct.Pin = SPI1_CS_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(SPI1_CS_PORT, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7; // Set SPI pins as AF
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF0_SPI1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    SPI1->CR1 = SPI_CR1_MSTR | SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0;
    SPI1->CR2 = SPI_CR2_DS_0 | SPI_CR2_DS_1 | SPI_CR2_DS_2; // Set SPI data size to 8 bits
    SPI1->CR1 |= SPI_CR1_SPE;  // Enable SPI
}

void SX1268_Write(uint8_t addr, uint8_t data)
{
    HAL_GPIO_WritePin(SPI1_CS_PORT, SPI1_CS_PIN, GPIO_PIN_RESET); // Select SX1268
    SPI1->DR = addr | 0x80; // Send address with write bit set
    while(!(SPI1->SR & SPI_SR_TXE)); // Wait for transmit buffer empty
    SPI1->DR = data; // Send data
    while(!(SPI1->SR & SPI_SR_TXE)); // Wait for transmit buffer empty
    while(SPI1->SR & SPI_SR_BSY); // Wait for transfer complete
    HAL_GPIO_WritePin(SPI1_CS_PORT, SPI1_CS_PIN, GPIO_PIN_SET); // Deselect SX1268
}

void SX1268_Send(uint8_t *data, uint8_t len)
{
    // Set SX1268 to standby mode
    SX1268_Write(0x01, 0x81);

    // Set SX1268 to TX mode
    SX1268_Write(0x01, 0x83);

    // Send data
    for(int i = 0; i < len; i++)
    {
        SX1268_Write(0x00, data[i]);
    }

    // Wait for transmission to complete
    while((SX1268_Read(0x12) & 0x04) == 0);

    // Set SX1268 to standby mode
    SX1268_Write(0x01, 0x81);
}

int main(void)
{
    SPI1_Init();

    // Set SX1268 to sleep mode
    SX1268_Write(0x01, 0x80);

    uint8_t data[] = {0x01, 0x02, 0x03, 0x04, 0x05};
    SX1268_Send(data, sizeof(data));

    while(1);
}

这个示例代码主要实现了以下功能：

1. 初始化SPI1接口，设置SPI1_CS_PIN为输出模式。
2. 实现SX1268_Write函数，用于向SX1268写入数据。
3. 实现SX1268_Send函数，用于将数据发送到SX1268模块。
4. 在main函数中，初始化SPI1接口和SX1268模块，设置SX1268模块为睡眠状态。
5. 调用SX1268_Send函数将数据发送到SX1268模块，并等待数据发送完成。

需要注意的是，这个示例代码仅供参考，具体的SPI通信和SX1268控制命令需要根据具体的硬件模块和应用场景进行相应的修改和优化。