分类计数原理与分步计数原理
2024-5-11 09:00
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- 20
- 1474
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STM32串口通信原理及HAL库代码stm32f1xx
2024-4-28 18:14
- ST MCU
- 38
- 2316
}
else
{//不带校验的接收处理
if(UART_WaitOnFlagUntilTimeout(huart, UART_FLAG ...
{
huart->RxXferCount--;//每接收完1字节，则减1
if(huart->Init.WordLength == UART_WORDLEN ...
/* Process Locked */
__HAL_LOCK(huart);
huart->ErrorCode = HAL_UART_ERROR_NONE;
...
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_ ...
if(--huart->TxXferCount == 0U)
{//待发送的字节数为0时，表示数据发送完毕
/* Disable the ...
else
{//不带校验发送
huart->Instance->DR = (uint8_t)(*huart->pTxBuffPtr++ & (uint8_t)0 ...
static HAL_StatusTypeDef UART_Transmit_IT(UART_HandleTypeDef *huart)
{
uint16_t* tmp;
/* Chec ...
/* UART in mode Transmitter end --------------------------------------------*/
if(((isrflags & US ...
return;
} /* End if some error occurs */
/* UART in mode Transmitter ----------------------- ...
else
{
/* Call user error callback */
HAL_UART_ErrorCallback(hua ...
/* If Overrun error occurs, or if any error occurs in DMA mode reception,
consider error ...
/* UART frame error interrupt occurred -----------------------------------*/
if(((isrflags & US ...
/* If some errors occur */
if((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((c ...
void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
{//串口中断函数回调函数
uint32_t isrflags = ...
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
{// ...
else
{
pData +=1U;
}
}
else
{//不带校验
if(UART ...
HAL库代码分析：
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint1 ...
至于什么时候使用哪个标志，需要根据你的需要自己决定。但我认为TXE允许程序有更充裕的时间填写TDR寄存器， ...
STM32串口通信原理及HAL库代码stm32f1xx_hal_uart.c阅读分析
原理性说明：
//参考网址：https://blog.csdn. ...
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