/* Disable the UART Transmit Complete Interrupt */ __HAL_UART_DISABLE_IT(huart, UART_IT_TXE); /* Enable the UART Transmit Complete Interrupt */ __HAL_UART_ENABLE_IT(huart, UART_IT_TC); } 1. 2. 3. 4. 5. 6. 7. 8. 这里会把发送的 TxXferCount 的计数值自减,并判断是否为零。...
huart->ErrorCode = HAL_UART_ERROR_NONE; huart->gState = HAL_UART_STATE_BUSY_TX; /* Process Unlocked */ __HAL_UNLOCK(huart); /* Enable the UART Transmit data register empty Interrupt */ __HAL_UART_ENABLE_IT(huart, UART_IT_TXE); return HAL_OK; } else { return HAL_BUSY; } ...
}/*UART Over-Run interrupt occurred ---*/if(((isrflags & USART_SR_ORE) != RESET) && ((cr3its & USART_CR3_EIE) !=RESET)) { huart->ErrorCode |=HAL_UART_ERROR_ORE; }/*Call UART Error Call back function if need be ---*/if(huart->ErrorCode !=HAL_UART_ERROR_NONE) {/*UAR...
= HAL_OK) { /* Initialization Error */ Error_Handler(); } /* Enable the UART receive interrupt */ HAL_UART_Receive_IT(&huart2, &RxBuffer, 1); // RxBuffer is a global variable to store received data } 3. 编写串口中断处理函数 在stm32fxxx_it.c文件中(或你的中断处理...
huart->ErrorCode =HAL_UART_ERROR_NONE; huart->RxState =HAL_UART_STATE_BUSY_RX;/*Process Unlocked*/__HAL_UNLOCK(huart);/*Enable the UART Error Interrupt: (Frame error, noise error, overrun error)*/SET_BIT(huart->Instance->CR3, USART_CR3_EIE);/*Enable the UART Parity Error and Da...
二、中断模式(Interrupt mode IO operation) 使用HAL_UART_Transmit_IT()与HAL_UART_Receive_IT来发送接收,在发送或接收完之后,再进行函数回调HAL_UART_TxCpltCallback与HAL_UART_RxCpltCallback来进行处理这两个函数都是由用户重新定义的,来实现用户自己的操作 ...
这个时候,程序将转去执行UART_EndTransmit_IT(huart)这个函数,如下: staticHAL_StatusTypeDefUART_EndTransmit_IT(UART_HandleTypeDef*huart){/* Disable the UART Transmit Complete Interrupt */__HAL_UART_DISABLE_IT(huart,UART_IT_TC);/* Tx process is ended, restore huart->gState to Ready */huart...
*/__HAL_UART_ENABLE_IT(huart, UART_IT_PE);/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */__HAL_UART_ENABLE_IT(huart, UART_IT_ERR);/* Enable the UART Data Register not empty Interrupt */__HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);returnHAL_OK...
为了使能中断,都在while主循环之前调用HAL_UART_Receive_IT( huart2,(uint8_t *) value,1);但串口1或者低功耗串口,调用这个函数时,程序就卡死在HAL_UART_Receive_IT这个函数中,跟踪进去发现是卡死在/* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */...
⼆、中断模式（Interrupt mode IO operation）使⽤HAL_UART_Transmit_IT()与HAL_UART_Receive_IT来发送接收，在发送或接收完之后，再进⾏函数回调 HAL_UART_TxCpltCallback与HAL_UART_RxCpltCallback来进⾏处理这两个函数都是由⽤户重新定义的，来实现⽤户⾃⼰的操作 在系统初始化后，直接调⽤HAL...