uart_rx_irq(USART_1,1); //配置串口接收的缓冲区及缓冲区长度 example_receivexfer.dataSize = 1; example_receivexfer.data = &example_rx_buffer; //设置中断函数及其参数 uart_set_handle(USART_1, &example_g_lpuartHandle, example_uart_callback, NULL, 0, example_receivexfer.data, 1); NVIC_Set...
If the UART supports RTO, that is almost always what you want, rather than "receive to idle". See the examples by Tilen Majerle here. Or, use continuous receive with circular buffer example The HAL driver unfortunately is too complicated to work reliably. 0 Kudos R...
Now it is time to understand which features to use to receive data with UART and DMA to offload CPU. As for the sake of this example, we use memory buffer array of20bytes. DMA will transfer data received from UART to this buffer. Steps to start. We assume that UART has been initializ...
程序现象 程序说明 以下内容出自 stm32f1xx_hal_uart.c [..] This subsection also provides a set of additional functions providing enhanced receptionservices to user. (For example, these functions allow application to handleuse caseswhere number of data to be received is unknown).(#) Compared to ...
uint8_t receive_buffer[256];externTIM_HandleTypeDef htim7;staticvoiderror_handler(void) {while(1); }staticvoidbsp_uart1_gpio_cfg(void) { GPIO_InitTypeDef GPIO_InitStruct= {0}; __HAL_RCC_GPIOA_CLK_ENABLE();/**USART1 GPIO Configuration ...
UART: Universal Asynchronous Receiver Transmitter USART: Universal Synchronous Asynchronous Receiver Transmitter TX: Transmit RX: Receive HT: Half-Transfer Complete event/flag for DMA TC: Transfer Complete event/flag for DMA RTO: Receiver Timeout event/flag ...
HAL_UART_Receive_IT(&huart1, &r_data,1); } 3、其它不用修改的代码 /** * @brief UART MSP Initialization * This function configures the hardware resources used in this example * @param huart: UART handle pointer * @retval None*/voidHAL_UART_MspInit(UART_HandleTypeDef*huart) ...
126 void UART4_IRQHandler(void) //UART4 Receive Interrupt 127 { 128 u8 Res; 129 130 if(USART_GetITStatus(UART4, USART_IT_RXNE) != RESET) //接收中断(接收到的数据必须是0x0d 0x0a结尾) 131 { 132 Res =USART_ReceiveData(UART4);//(USART1->DR); //读取接收到的数据 ...
uint8_tRxData[4096]intmain(){...HAL_UART_Receive_DMA(&huart2,RxData,4);while(1){HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_5);HAL_Delay(1000);}} The functionHAL_UART_Receive_DMAis used to receive 4 data bytes. Once all the 4 bytes has been received, the interrupt will trigger and the...
Now it is time to understand which features to use to receive data with UART and DMA to offload CPU. As for the sake of this example, we use memory buffer array of20bytes. DMA will transfer data received from UART to this buffer. ...