HAL_UART_Transmit(&huart1, RxDate, 200-1 - huart1.RxXferCount, 1); } else { HAL_Delay(1); } break; case HAL_ERROR: // 错误处理逻辑,可以根据需要添加 // 例如,重置 UART 或重新初始化 huart1.RxState = HAL_UART_STATE_READY; __HAL_UNLOCK(&huart1); break; case HAL_BUSY: //...
LPUART的全称是Low power universal synchronous asynchronous receiver transmitter，中文意思是低功耗通用异步...
if (huart->RxState == HAL_UART_STATE_READY //判断busy) { ……… huart->RxState = HAL_UART_STATE_BUSY_RX; //变为busy ……… return HAL_OK; } else { return HAL_BUSY; } 所以我们只需要判断他的另外两种状态,HAL_OK(在规定时间内接收到n个数据)、和HAL_TIMEOUT(未在规定时间接收到n个...
/* At end of Rx process, restore huart->RxState to Ready */ huart->RxState = HAL_UART_STATE_READY; } #if (USE_HAL_UART_REGISTER_CALLBACKS == 1) //看这里2 /*Call registered Rx complete callback*/ huart->RxCpltCallback(huart); #else /*Call legacy weak Rx complete callback*/...
{__HAL_UART_CLEAR_IT(&huart2,UART_CLEAR_IDLEF);//Çå³ýÖжÏ// ReceiveState = 1;// IDLE 数据处理,一帧数据接收标志位置位} } HAL库接收方式二 但是在于 HAL 中,还有一种比较常用的开启中断方法,不是直接使能中断,而是通过调用 HAL 库函数登录后复制HAL_UART_Receive_IT: ...
Set the UART state ready to be able to start again the process,Disable Rx Interrupts, and ...
huart->RxState = HAL_UART_STATE_READY;调用MspInit-->修改状态忙-->配置寄存器-->清楚标志位 2....
__UART_HandleTypeDef *huart); void (*TxISR)(struct __UART_HandleTypeDef *huart); DMA_HandleTypeDef *hdmatx; DMA_HandleTypeDef *hdmarx; HAL_LockTypeDef Lock; / __IO HAL_UART_StateTypeDef gState; __IO HAL_UART_StateTypeDef RxState; __IO uint32_t ErrorCode; #if (USE_HAL_UART_...
TX还是HAL_UART_STATE_BUSY_RX或HAL_UART_STATE_BUSY_TX_RX，都会直接设置成HAL_UART_STATE_READY。
if (huart->RxState == HAL_UART_STATE_READY) { if ((pData == NULL) || (Size == 0U)) { return HAL_ERROR; } /* In case of 9bits/No Parity transfer, pData buffer provided as input parameter should be aligned on a u16 frontier, as data to be received from RDR will be ...