本帖最后由 songshiqun2010 于 2019-6-13 12:01 编辑 & Z% O& L! g$ x4 g9 p1 x
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复制代码 1.空闲中断回调函数定义 如下- void HAL_UART_IdleCallback(UART_HandleTypeDef *huart)6 |3 j, j: ]) d: i
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- if(huart->Instance == USART1){
. o3 g5 ?8 O7 ?& @ - if(__HAL_UART_GET_FLAG(huart,UART_FLAG_IDLE) ){
% n+ h6 w7 `4 w7 X$ } - uint16_t rx_buffer_len,i;3 J7 @1 t# n! Y; o
- __HAL_UART_CLEAR_IDLEFLAG(huart);7 }2 b4 [/ P2 ?) {! i; s
- HAL_UART_DMAStop(huart);/ y9 X6 C) B1 a
- rx_buffer_len = huart->RxXferSize - __HAL_DMA_GET_COUNTER(huart->hdmarx);/ ^9 u$ l! M: z* f
- //TO DO:
6 x1 H; R) K8 M - //将数据(huart->pRxBuffPtr 中 rx_buffer_len个字节)压入环形队列
# m0 u: N1 X/ D" Z, F" t - //这里未做环形队列实现,请自行填充/ e1 ~2 L, c! ?' z
- HAL_UART_Receive_DMA(huart,huart->pRxBuffPtr,huart->RxXferSize);
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- }
复制代码
; e( K1 g5 X+ Q# M- W2.回调函数调用方式如下
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- * @brief This function handles USART1 global interrupt.
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- void USART1_IRQHandler(void)
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- /* USER CODE BEGIN USART1_IRQn 0 */
: i- S( F, n% o4 K$ @0 y - extern void HAL_UART_IdleCallback(UART_HandleTypeDef *huart);
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- /* USER CODE END USART1_IRQn 0 */# M5 U; t! j# M) A5 |
- HAL_UART_IRQHandler(&huart1);
( ]! i9 |5 h, D/ y* W - /* USER CODE BEGIN USART1_IRQn 1 */: Y/ Q( \7 ^+ k1 q: t8 |
7 M* W1 c6 @0 W- /* USER CODE END USART1_IRQn 1 */2 f( O" D: |& y6 A1 m( {
- }
复制代码 3.初始化如下
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- uint8_t rx_buffer[256];1 @( j& ^$ |1 W5 \! h2 E
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- HAL_UART_Receive_DMA(&huart1,rx_buffer,sizeof(rx_buffer));8 ]3 E& n" u! g5 L( E. ?5 ]1 B
- __HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE);
复制代码 4.环形队列keil5 pack
ctb.ringbuffer.1.0.0.zip
(3.61 KB, 下载次数: 85)
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大神,环形队列怎么自动生成?
帖子上不是有說明如何勾選 ? 如何生成 ?