void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{// printf("IT IN\r\n");
// printf("%d \r\n",HAL_GetTick());//置零设定电流值 PID时间if (huart->Instance == USART3) {// 将数据放入缓冲区circular_buffer.buffer[circular_buffer.head] = rxBuffer[0];circular_buffer.head = (circular_buffer.head + 1) % BUFFER_SIZE;// 如果缓冲区满,则丢弃最早的数据if (circular_buffer.head == circular_buffer.tail) {circular_buffer.tail = (circular_buffer.tail + 1) % BUFFER_SIZE;}}}
每接受一个字节的数据都触发一次中断
void USART3_IRQHandler(void)
{/* USER CODE BEGIN USART3_IRQn 0 *//* USER CODE END USART3_IRQn 0 */HAL_UART_IRQHandler(&huart3);/* USER CODE BEGIN USART3_IRQn 1 */HAL_UART_Receive_IT(&huart3, (uint8_t *)&rxBuffer,1); //添加的一行代码/* USER CODE END USART3_IRQn 1 */
}