本帖最后由 songshiqun2010 于 2019-6-13 12:01 编辑 9 N& F' D: p+ }* P7 T2 a
1.空闲中断回调函数定义 如下- void HAL_UART_IdleCallback(UART_HandleTypeDef *huart)
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9 b) _3 M6 O8 ]6 M; F) \ - if(huart->Instance == USART1){& w8 z1 B$ Q& X# ]/ Q
- if(__HAL_UART_GET_FLAG(huart,UART_FLAG_IDLE) ){
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- __HAL_UART_CLEAR_IDLEFLAG(huart);
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- rx_buffer_len = huart->RxXferSize - __HAL_DMA_GET_COUNTER(huart->hdmarx);
1 v; d7 m( M. j v) K/ m1 w d& C - //TO DO:
) R6 k8 ]2 E; D - //将数据(huart->pRxBuffPtr 中 rx_buffer_len个字节)压入环形队列! Q( ^, T+ |" H/ {) {
- //这里未做环形队列实现,请自行填充
, D, y1 e$ O, H3 n# [+ p; ` - HAL_UART_Receive_DMA(huart,huart->pRxBuffPtr,huart->RxXferSize);1 ^. k8 m8 y8 M6 {# \- V
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- }
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2.回调函数调用方式如下0 ?. U! L2 X: ?( Y3 O! z
- /**& A$ Z0 a9 I9 ~; K- W
- * @brief This function handles USART1 global interrupt.- @8 a' `" K; w9 k H
- */
+ E, l- O9 E- ? N; f' s& l - void USART1_IRQHandler(void)
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- /* USER CODE BEGIN USART1_IRQn 0 */
2 E/ Q0 W5 k4 \' a0 Q - extern void HAL_UART_IdleCallback(UART_HandleTypeDef *huart);
5 }% A$ y& E$ {# R0 ]% G1 W! I - HAL_UART_IdleCallback(&huart1);
8 ]6 L+ x. B4 R B5 C" p* D U - /* USER CODE END USART1_IRQn 0 */% P8 H. l& K1 K: h' D
- HAL_UART_IRQHandler(&huart1);+ W/ K q: @+ j* `+ k( v
- /* USER CODE BEGIN USART1_IRQn 1 */
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- /* USER CODE END USART1_IRQn 1 */. d4 g5 x! ?$ g* i' Q0 Y
- }
复制代码 3.初始化如下
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- uint8_t rx_buffer[256];4 w, x6 g7 V& G2 v: B! D, ]( v* b
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- HAL_UART_Receive_DMA(&huart1,rx_buffer,sizeof(rx_buffer));
+ G7 Z# w5 `/ t4 h - __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 ?