本帖最后由 songshiqun2010 于 2019-6-13 12:01 编辑
9 x) |0 s+ i0 Z, B$ A1.空闲中断回调函数定义 如下- void HAL_UART_IdleCallback(UART_HandleTypeDef *huart)5 @3 k7 \$ v) Q) `
- {
1 z, U% j3 F) V4 l - if(huart->Instance == USART1){
- Q* }8 ]$ }' Y! d - if(__HAL_UART_GET_FLAG(huart,UART_FLAG_IDLE) ){9 A3 x' ~) m6 _: J+ C! m- J4 K. @2 t) O
- uint16_t rx_buffer_len,i;" x. \! O: M+ c$ U g
- __HAL_UART_CLEAR_IDLEFLAG(huart);
' Y$ X- ~" r8 Y* J - HAL_UART_DMAStop(huart);
" Z9 `, C( K f" v- B - rx_buffer_len = huart->RxXferSize - __HAL_DMA_GET_COUNTER(huart->hdmarx);) T7 f) F1 S7 ~5 W5 k
- //TO DO:3 a# W- R" k: X# V
- //将数据(huart->pRxBuffPtr 中 rx_buffer_len个字节)压入环形队列) |; g* `( x0 }; a8 ~
- //这里未做环形队列实现,请自行填充
( l2 q! J% m" a" K; u3 }( T+ t% d - HAL_UART_Receive_DMA(huart,huart->pRxBuffPtr,huart->RxXferSize);( z2 o" M4 a. F- F
- }
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! U% L7 Y4 I) }6 ?# O! c, W - }
复制代码 & V- @* R& a2 W! ~9 \, u, ^$ w0 \+ Y
2.回调函数调用方式如下
2 ~! V& V/ l5 _$ a1 M- /**
2 X" c9 `; d8 s7 J1 W - * @brief This function handles USART1 global interrupt.) w7 ?* e- q& \6 m* k0 H
- */: W+ W( t; |( I9 l+ F( |) e
- void USART1_IRQHandler(void)% p' m. b8 b/ ]$ O. L
- {
) ]0 {9 j* T; Y- k - /* USER CODE BEGIN USART1_IRQn 0 */& t. ~; x$ a- P+ b. g
- extern void HAL_UART_IdleCallback(UART_HandleTypeDef *huart);
" @( x6 M" ?, _# h0 _# g - HAL_UART_IdleCallback(&huart1);
9 n9 i2 U; l: c, S$ x) | - /* USER CODE END USART1_IRQn 0 */ x' v7 ?; ^9 d0 T% N
- HAL_UART_IRQHandler(&huart1);; t, ~ l- X d) Q5 C" k
- /* USER CODE BEGIN USART1_IRQn 1 */
* G. U4 M( b- k
5 g+ f) _/ x* K& y; C" X- /* USER CODE END USART1_IRQn 1 */
9 h- \: e- B9 E+ W+ i, y - }
复制代码 3.初始化如下3 o( Z2 f1 F, N0 C
# \% o! g5 h) o8 K2 y! G Z8 j: z- uint8_t rx_buffer[256];$ g, b2 D: v0 L1 S' j4 \6 \- a- D
2 m. y8 t- |5 }- HAL_UART_Receive_DMA(&huart1,rx_buffer,sizeof(rx_buffer));# q8 _7 @3 N# }9 M" f/ Q
- __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
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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 ?