USART_SendData(USARTx, Data); //while(!USART_GetFlagStatus(USARTx, USART_FLAG_TXE)); //要等待数据全部转到移位寄存器 //USART_ClearFlag(USARTx, USART_FLAG_TXE); //清空标志位 while(!USART_GetFlagStatus(USARTx, USART_FLAG_TC));//要等待数据全部发出 USART_ClearFlag(USARTx, USART_FLAG_TC); /...
< USART Interrupt and status register, Address offset: 0x1C */ __IO uint32_t ICR; /*!< USART Interrupt flag Clear register, Address offset: 0x20 */ __IO uint16_t RDR; /*!< USART Receive Data register, Address offset: 0x24 */ uint16_t RESERVED4; /*!< Reserved, 0x26 */ __...
tmp_flag=__HAL_UART_GET_FLAG(huart, UART_FLAG_TXE); tmp_it_source=__HAL_UART_GET_IT_SOURCE(huart, UART_IT_TXE);/*UART in mode Transmitter ---*/if((tmp_flag != RESET) && (tmp_it_source !=RESET)) {UART_Transmit_IT(huart);} tmp_flag=__HAL_UART_GET_FLAG(huart, UART_FL...
voidUSART2_IRQHandler(void){uint32_ttmp;if((__HAL_UART_GET_IT(&sg_USART2_HandleStruct, UART_IT_IDLE) != RESET)) {/* 清除相关标志 */__HAL_UART_CLEAR_IDLEFLAG(&sg_USART2_HandleStruct); tmp = sg_USART2_HandleStruct.Instance->ISR;/* 通过读取该寄存器来清除 */tmp = sg_USART2_Han...
while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET); //等待接收到数据 ch = USART_ReceiveData(USART1); return ch; //返回数据 } 并添加stdio.h头文件,就可以使用C语言中的printf函数将字符串通过串口打印在电脑上了。 对于HAL库
下面我们介绍__HAL_USART_GET_FLAG函数。这个函数用来检查USART标志位是否被设置。 /** @brief Check whether the specified USART flag is set or not. * @param __HANDLE__: specifies the USART Handle * @param __FLAG__: specifies the flag to check. ...
下面我们介绍__HAL_USART_GET_FLAG函数。这个函数用来检查USART标志位是否被设置。 /** @brief Check whether the specified USART flag is set or not. * @param __HANDLE__: specifies the USART Handle * @param __FLAG__: specifies the flag to check. ...
< USART Interrupt and status register, Address offset: 0x1C */ __IO uint32_t ICR; /*!< USART Interrupt flag Clear register, Address offset: 0x20 */ __IO uint16_t RDR; /*!< USART Receive Data register, Address offset: 0x24 */ uint16_t RESERVED4; /*!< Reserved, 0x26 */ _...
< USART Status register, Address offset: 0x00 */__IO uint32_tDR;/*!< USART Data register, Address offset: 0x04 */__IO uint32_tBRR;/*!< USART Baud rate register, Address offset: 0x08 */__IO uint32_tCR1;/*!< USART Control register 1, Address offset: 0x0C */__IO uint32_...
< USART Interrupt and status register, Address offset: 0x1C*/__IO uint32_t ICR;/*!< USART Interrupt flag Clear register, Address offset: 0x20*/__IO uint16_t RDR;/*!< USART Receive Data register, Address offset: 0x24*/uint16_t RESERVED4;/*!< Reserved, 0x26*/__IO uint16_t ...