前段時間在項目的HAL庫串口配置區耗費了很長時間（其實我是爲了研究hal庫對於stm32串口內部函數的執行過程以及對於重寫回調函數和信號量的執行效率）函數
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);//發送數據，阻塞發送Timeout爲溢出時間
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout);//接收數據，阻塞接收Timeout爲溢出時間
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);//發送中斷
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);//接收中斷
HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);//串口DMA發送
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size);//串口DMA接收
HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart);//串口DMA暫停
HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart);//串口DMA恢復
HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart);//串口DMA中止ui
回調函數本身按照官方的寫就能夠了回調函數