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 standard reception ...
handle->rxData = example_receivexfer.data; //还原缓冲区地址 } int main(void) { DisableGlobalIRQ(); board_init();//务必保留,本函数用于初始化MPU 时钟 调试串口 uart_init (USART_1, 115200,UART1_TX_B12,UART1_RX_B13); NVIC_SetPriority(LPUART1_IRQn,15); //设置串口中断优先级 范围0-15 ...
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. Listed are steps to begin. Initial assumption is that ...
* This parameter can be one of the following values: * USART1, USART2, USART3, UART4 or UART5. * @retval The received data. */ uint16_t USART_ReceiveData(USART_TypeDef* USARTx) { /* Check the parameters */ assert_param(IS_USART_ALL_PERIPH(USARTx)); /* Receive Data */ return...
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 ...
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. ...
This is the 4th tutorial in the STM32 UART Series. In this tutorial we will use the DMA to receive the data in the normal and circular mode..
Combine UART + DMA for data reception 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. ...
temp = DMA_USART1_RECEIVE_LEN - DMA_GetCurrDataCounter(DMA1_Channel5); //接收的字符串长度=设置的接收长度-剩余DMA缓存大小 for (i = 0;i 《 temp;i++) { Uart2_Buffer[i] = USART1_RECEIVE_DMABuffer[i]; } //设置传输数据长度 DMA_SetCurrDataCounter(DMA1_Channel5,DMA_USART1_RECEIVE_LEN...
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 Re...