From d9321b6a77d97a67fb6e9f0a9fd4da73a1da4078 Mon Sep 17 00:00:00 2001
From: WXK <287788329@qq.com>
Date: 星期一, 18 三月 2024 09:15:37 +0800
Subject: [PATCH] 1
---
Src/stm32l0xx_it.c | 39 +++++++++++++++++++--------------------
1 files changed, 19 insertions(+), 20 deletions(-)
diff --git a/Src/stm32l0xx_it.c b/Src/stm32l0xx_it.c
index 761c2bb..824c807 100644
--- a/Src/stm32l0xx_it.c
+++ b/Src/stm32l0xx_it.c
@@ -43,6 +43,9 @@
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
float nomove_count=0;
+volatile uint16_t rx_len ; //接收一帧数据的长度
+volatile uint8_t recv_end_flag; //一帧数据接收完成标志
+extern uint8_t GPS_GGAdate[200];
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
@@ -57,13 +60,12 @@
/* External variables --------------------------------------------------------*/
extern LPTIM_HandleTypeDef hlptim1;
+extern DMA_HandleTypeDef hdma_lpuart1_rx;
+extern DMA_HandleTypeDef hdma_lpuart1_tx;
extern DMA_HandleTypeDef hdma_usart1_rx;
extern DMA_HandleTypeDef hdma_usart1_tx;
-extern DMA_HandleTypeDef hdma_usart5_rx;
-extern DMA_HandleTypeDef hdma_usart5_tx;
extern UART_HandleTypeDef hlpuart1;
extern UART_HandleTypeDef huart1;
-extern UART_HandleTypeDef huart5;
/* USER CODE BEGIN EV */
/* USER CODE END EV */
@@ -200,8 +202,8 @@
/* USER CODE BEGIN DMA1_Channel4_5_6_7_IRQn 0 */
/* USER CODE END DMA1_Channel4_5_6_7_IRQn 0 */
- HAL_DMA_IRQHandler(&hdma_usart5_rx);
- HAL_DMA_IRQHandler(&hdma_usart5_tx);
+ HAL_DMA_IRQHandler(&hdma_lpuart1_rx);
+ HAL_DMA_IRQHandler(&hdma_lpuart1_tx);
/* USER CODE BEGIN DMA1_Channel4_5_6_7_IRQn 1 */
/* USER CODE END DMA1_Channel4_5_6_7_IRQn 1 */
@@ -219,20 +221,6 @@
/* USER CODE BEGIN LPTIM1_IRQn 1 */
/* USER CODE END LPTIM1_IRQn 1 */
-}
-
-/**
- * @brief This function handles USART4 and USART5 interrupt.
- */
-void USART4_5_IRQHandler(void)
-{
- /* USER CODE BEGIN USART4_5_IRQn 0 */
-__HAL_UART_CLEAR_IDLEFLAG(&huart1);
- /* USER CODE END USART4_5_IRQn 0 */
- HAL_UART_IRQHandler(&huart5);
- /* USER CODE BEGIN USART4_5_IRQn 1 */
-
- /* USER CODE END USART4_5_IRQn 1 */
}
/**
@@ -255,7 +243,18 @@
void LPUART1_IRQHandler(void)
{
/* USER CODE BEGIN LPUART1_IRQn 0 */
-
+ uint32_t tmp_flag = 0;
+ uint32_t temp;
+ tmp_flag =__HAL_UART_GET_FLAG(&hlpuart1,UART_FLAG_IDLE); //获取IDLE标志位
+ if((tmp_flag != RESET))//idle标志被置位
+ {
+ __HAL_UART_CLEAR_IDLEFLAG(&hlpuart1);//清除标志位
+ HAL_UART_DMAStop(&hlpuart1); // 停止DMA传输，防止
+ temp = __HAL_DMA_GET_COUNTER(&hdma_lpuart1_rx);// 获取DMA中未传输的数据个数
+ rx_len = LPUART_SIZE - temp; //总计数减去未传输的数据个数，得到已经接收的数据个数
+ recv_end_flag = 1; // 接受完成标志位置1
+// HAL_UART_Receive_DMA(&hlpuart1,GPS_GGAdate,LPUART_SIZE);//重新打开DMA接收
+ }
/* USER CODE END LPUART1_IRQn 0 */
HAL_UART_IRQHandler(&hlpuart1);
/* USER CODE BEGIN LPUART1_IRQn 1 */
--
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