MX_USART1_UART_Init(); char send_data[] = "Hello, STM32 Serial Communication!\r\n"; char receive_data[20]; while (1) { // 发送数据 HAL_UART_Transmit(&huart1, (uint8_t *)send_data, sizeof(send_data), 1000); // 接收
The rest of the UART configuration is same as the previous tutorials with Baud Rate of 115200 with 8 data bits, 1 stop bit and no parity.We need to know the size of the incoming data. So the sender should first send 4 bytes of the size data followed by the data itself. If you ...
(uart_rx_sem, &xHigherPriorityTaskWoken); portYIELD_FROM_ISR(xHigherPriorityTaskWoken); } } void Gimbal_DMA_Send_record(const uint8_t *data, uint16_t size) { // 记录当前发送的指令代号 circle_write(data[7]); // 底层发送 UART2_DMA_Send(data, size); } void UART2_DMA_Send(const ...
};typedefstructuart_moduart_mod_t;externuart_mod_tuser_uart_mod;voidusart_init(void);voidusart_set_rx_cbk(uart_mod_t*pmod, rx_cbk pfunc,void*pargs);voidusart_send_char(charch);voidusart_test_echo(void);uint8_tusart_recv_char(void);intusart_printf(constchar*fmt, ...);//extern GE...
一开始设置好DMA接收,可以把缓冲区长度设置为帧最大长度,我们可以把RX连接到定时器的管脚输入端,并且一开始设置输入并且使能引脚下降沿中断,当帧的第一个字节发送时,因为起始位为低电平,空闲时UART为高电平,满足条件,进入中断,禁止中断,并且在中断中开启定时器,该定时器工作在复位模式,上升沿复位,并且设置好定时器...
{// 发送一个字节的数据USART_SendByte('A');// 接收一个字节的数据received_data = USART_Receive...
send_data('l'); send_data('o'); // Receive and print data while(1) { uint8_t received_data = receive_data(); // Print received data } } ``` 以上是基于STM32的UART通信模块的设计和实现的文章,代码示例是一个简单的UART数据发送和接收的示例,读者可以根据实际需求进行修改和扩展。希望本文能...
*USERCODEBEGIN4*/voidusart1_send_data(uint8_t*buf,uint16_t len){HAL_UART_Transmit(&huart1,(uint8_t*)buf,len,0XFF);}intfputc(int ch,FILE*f){/* 发送一个字节数据到串口USARTx */HAL_UART_Transmit(&huart1,(uint8_t*)&ch,1,0xff);return(ch);}/* USER CODE END 4 */ ...
voidRCC_Config(void){RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE)RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1,ENABLE)}voidGPIO_for_can_and_uart_Config(void){/*定义一个GPIO_InitTypeDef类型的结构体*/GPIO_InitTypeDef GPIO_InitStructure;/*设置can的RX--pa.11引脚*/...
HAL_UART_Receive_IT:开启中断,在中断方式下接收一定数量的数据。 USART2_IRQHandler:串口2的中断服务程序,调用串口中断通用处理函数HAL_UART_IRQHandler。 HAL_UART_IRQHandler:在函数HAL_UART_IRQHandler内部通过判断中断类型是否为接收完成中断,确定是否调用UART_Receive_IT。