基于STM32F407 HAL库的SPI通信例程，写一份源码

#include "stm32f4xx_hal.h"

#define SPI_TIMEOUT 1000

/* SPI handle declaration */
SPI_HandleTypeDef hspi;

/* Buffer for SPI communication */
uint8_t tx_buffer[10];
uint8_t rx_buffer[10];

int main(void)
{
/* Initialize the HAL Library */
HAL_Init();

/* Initialize the SPI peripheral */
hspi.Instance = SPI1;
hspi.Init.Mode = SPI_MODE_MASTER;
hspi.Init.Direction = SPI_DIRECTION_2LINES;
hspi.Init.DataSize = SPI_DATASIZE_8BIT;
hspi.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi.Init.NSS = SPI_NSS_SOFT;
hspi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
hspi.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi.Init.TIMode = SPI_TIMODE_DISABLE;
hspi.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi.Init.CRCPolynomial = 7;
HAL_SPI_Init(&hspi);

/* Prepare the data to be sent */
for (int i = 0; i < 10; i++) {
tx_buffer[i] = i;
}

/* Transmit and receive data using SPI */
if (HAL_SPI_TransmitReceive(&hspi, tx_buffer, rx_buffer, 10, SPI_TIMEOUT) != HAL_OK) {
/* Error handling */
while(1);
}

/* Process received data */
for (int i = 0; i < 10; i++) {
/* Do something with rx_buffer[i] */
}

/* Infinite loop */
while (1) {
}
}