STM32F429 USART3串口中断无法接收到数据？？？

2019-10-15 18:31发布

Q:这个配置方法我是按照阿波罗USART1配置的，测试下来USART3->DR未有数据无法进入接收中断，usart3对外发数据是成功的
此外我配置usart3接收DMA是可以正常收到数据的

请问这个怎么破？有空调试的朋友留下邮箱，我把文件发给你

/**************************************´®¿Ú3µÄÏà¹ØÅäÖÃ  start************************************/
#if EN_USART3_RX //Èç¹ûÊ¹ÄÜÁË½ÓÊÕ
//´®¿Ú1ÖÐ¶Ï·þÎñ³ÌÐò
//×¢Òâ,¶ÁÈ¡USARTx->SRÄÜ±ÜÃâÄªÃûÆäÃîµÄ´íÎó
u8 USART3_RX_BUF[USART_REC_LEN];    //½ÓÊÕ»º³å,×î´óUSART_REC_LEN¸ö×Ö½Ú.
u16 USART3_RX_STA=0;    //½ÓÊÕ×´Ì¬±ê¼Ç
UART_HandleTypeDef UART3_Handler; //UART¾ä±ú

//³õÊ¼»¯IO ´®¿Ú3
//bound:²¨ÌØÂÊ
void uart3_init(u32 bound)
{
UART3_Handler.Instance=USART3;                      //USART3
UART3_Handler.Init.BaudRate=bound;                   //²¨ÌØÂÊ
UART3_Handler.Init.WordLength=UART_WORDLENGTH_8B; //×Ö³¤Îª8Î»Êý¾Ý¸ñÊ½
UART3_Handler.Init.StopBits=UART_STOPBITS_1;       //Ò»¸öÍ£Ö¹Î»
UART3_Handler.Init.Parity=UART_PARITY_NONE;          //ÎÞÆæÅ¼Ð£ÑéÎ»
UART3_Handler.Init.HwFlowCtl=UART_HWCONTROL_NONE; //ÎÞÓ²¼þÁ÷¿Ø
UART3_Handler.Init.Mode=UART_MODE_TX_RX;          //ÊÕ·¢Ä£Ê½
    HAL_UART_Init(&UART3_Handler);                      //NOTE：此处会调用void HAL_UART_MspInit(UART_HandleTypeDef *huart)
}

//´®¿Ú3ÖÐ¶Ï·þÎñ³ÌÐò
void USART3_IRQHandler(void)
{
u8 Res;
#if SYSTEM_SUPPORT_OS       //Ê¹ÓÃOS
OSIntEnter();
#endif
if((__HAL_UART_GET_FLAG(&UART3_Handler,UART_FLAG_RXNE)!=RESET))  //½ÓÊÕÖÐ¶Ï(½ÓÊÕµ½µÄÊý¾Ý±ØÐëÊÇ0x0d 0x0a½áÎ²)
{
      HAL_UART_Receive(&UART3_Handler,&Res,1,1000);
      if((USART3_RX_STA&(1<<15))==0)//½ÓÊÕÍêµÄÒ»ÅúÊý¾Ý,»¹Ã»ÓÐ±»´¦Àí,Ôò²»ÔÙ½ÓÊÕÆäËûÊý¾Ý
      {
         if(USART3_RX_STA<USART_REC_LEN) //»¹¿ÉÒÔ½ÓÊÕÊý¾Ý
         {
            __HAL_TIM_SET_COUNTER(&TIM7_Handler,0);//¼ÆÊýÆ÷Çå¿Õ
            if(USART3_RX_STA==0)                //Ê¹ÄÜ¶¨Ê±Æ÷7µÄÖÐ¶Ï
            {
                  __HAL_TIM_ENABLE(&TIM7_Handler);//Ê¹ÄÜTIM7
            }
            USART3_RX_BUF[USART3_RX_STA++]=Res; //¼ÇÂ¼½ÓÊÕµ½µÄÖµ
            Res=0;
         }
         else
         {
            USART3_RX_STA|=1<<15;             //Ç¿ÖÆ±ê¼Ç½ÓÊÕÍê³É
         }
      }
}
#if SYSTEM_SUPPORT_OS       //Ê¹ÓÃOS
      OSIntExit();
#endif
}
#endif
/**************************************´®¿Ú3µÄÏà¹ØÅäÖÃ  end************************************/

void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
//GPIO¶Ë¿ÚÉèÖÃ
GPIO_InitTypeDef GPIO_Initure;

if(huart->Instance==USART1)//Èç¹ûÊÇ´®¿Ú1£¬½øÐÐ´®¿Ú1 MSP³õÊ¼»¯
{
      __HAL_RCC_GPIOA_CLK_ENABLE();          //Ê¹ÄÜGPIOAÊ±ÖÓ
      __HAL_RCC_USART1_CLK_ENABLE();          //Ê¹ÄÜUSART1Ê±ÖÓ

      GPIO_Initure.Pin=GPIO_PIN_9;          //PA9
      GPIO_Initure.Mode=GPIO_MODE_AF_PP;       //¸´ÓÃÍÆÍìÊä³ö
      GPIO_Initure.Pull=GPIO_PULLUP;          //ÉÏÀ
      GPIO_Initure.Speed=GPIO_SPEED_FAST;       //¸ßËÙ
      GPIO_Initure.Alternate=GPIO_AF7_USART1; //¸´ÓÃÎªUSART1
      HAL_GPIO_Init(GPIOA,&GPIO_Initure);          //³õÊ¼»&#175

A9

GPIO_Initure.Pin=GPIO_PIN_10; //PA10
HAL_GPIO_Init(GPIOA,&GPIO_Initure); //³õÊ¼»&#175

A10

      __HAL_UART_DISABLE_IT(&UART1_Handler,UART_IT_TC);

#if EN_USART1_RX
      __HAL_UART_ENABLE_IT(&UART1_Handler,UART_IT_RXNE);//¿ªÆô½ÓÊÕÖÐ¶Ï
      HAL_NVIC_EnableIRQ(USART1_IRQn);             //Ê¹ÄÜUSART1ÖÐ¶ÏÍ¨µÀ
      HAL_NVIC_SetPriority(USART1_IRQn,3,3);          //ÇÀÕ¼ÓÅÏÈ¼¶3£¬×ÓÓÅÏÈ¼¶3
      TIM3_Init(100-1,9000-1);    //TIM7_Init(1000-1,9000-1)=100ms
#endif
}
if(huart->Instance==USART2)//Èç¹ûÊÇ´®¿Ú2£¬½øÐÐ´®¿Ú2 MSP³õÊ¼»¯
{
      __HAL_RCC_GPIOA_CLK_ENABLE();          //Ê¹ÄÜGPIOAÊ±ÖÓ
      __HAL_RCC_USART2_CLK_ENABLE();          //Ê¹ÄÜUSART2Ê±ÖÓ

      GPIO_Initure.Pin=GPIO_PIN_2;          //PA2
      GPIO_Initure.Mode=GPIO_MODE_AF_PP;       //¸´ÓÃÍÆÍìÊä³ö
      GPIO_Initure.Pull=GPIO_PULLUP;          //ÉÏÀ
      GPIO_Initure.Speed=GPIO_SPEED_FAST;       //¸ßËÙ
      GPIO_Initure.Alternate=GPIO_AF7_USART2; //¸´ÓÃÎªUSART2
      HAL_GPIO_Init(GPIOA,&GPIO_Initure);          //³õÊ¼»&#175

A9

GPIO_Initure.Pin=GPIO_PIN_3; //PA3
HAL_GPIO_Init(GPIOA,&GPIO_Initure); //³õÊ¼»&#175

A10

      __HAL_UART_DISABLE_IT(&UART2_Handler,UART_IT_TC);

#if en_USART2_RX
      __HAL_UART_ENABLE_IT(&UART2_Handler,UART_IT_RXNE);//¿ªÆô½ÓÊÕÖÐ¶Ï
      HAL_NVIC_EnableIRQ(USART2_IRQn);             //Ê¹ÄÜUSART2ÖÐ¶ÏÍ¨µÀ
      HAL_NVIC_SetPriority(USART2_IRQn,3,2);          //ÇÀÕ¼ÓÅÏÈ¼¶3£¬×ÓÓÅÏÈ¼¶2
      TIM3_Init(100-1,9000-1);    //TIM3_Init(10-1,9000-1);1ms
#endif
}
if(huart->Instance==UART4)//Èç¹ûÊÇ´®¿Ú4£¬½øÐÐ´®¿Ú4 MSP³õÊ¼»¯
{
      __HAL_RCC_GPIOA_CLK_ENABLE();          //Ê¹ÄÜGPIOAÊ±ÖÓ
      __HAL_RCC_UART4_CLK_ENABLE();          //Ê¹ÄÜUSART4Ê±ÖÓ

      GPIO_Initure.Pin=GPIO_PIN_0;          //PA0
      GPIO_Initure.Mode=GPIO_MODE_AF_PP;       //¸´ÓÃÍÆÍìÊä³ö
      GPIO_Initure.Pull=GPIO_PULLUP;          //ÉÏÀ
      GPIO_Initure.Speed=GPIO_SPEED_FAST;       //¸ßËÙ
      GPIO_Initure.Alternate=GPIO_AF8_UART4; //¸´ÓÃÎªUSART4
      HAL_GPIO_Init(GPIOA,&GPIO_Initure);          //³õÊ¼»&#175

A0

GPIO_Initure.Pin=GPIO_PIN_1; //PA1
HAL_GPIO_Init(GPIOA,&GPIO_Initure); //³õÊ¼»&#175

A1

      __HAL_UART_DISABLE_IT(&UART4_Handler,UART_IT_TC);

#if EN_USART4_RX
      __HAL_UART_ENABLE_IT(&UART4_Handler,UART_IT_RXNE);//¿ªÆô½ÓÊÕÖÐ¶Ï
      HAL_NVIC_EnableIRQ(UART4_IRQn);             //Ê¹ÄÜUSART4ÖÐ¶ÏÍ¨µÀ
      HAL_NVIC_SetPriority(UART4_IRQn,3,1);          //ÇÀÕ¼ÓÅÏÈ¼¶3£¬×ÓÓÅÏÈ¼¶1
      TIM7_Init(100-1,9000-1);    //TIM7_Init(1000-1,9000-1)=100ms
#endif
}
if(huart->Instance==USART3)//Èç¹ûÊÇ´®¿Ú3£¬½øÐÐ´®¿Ú3 MSP³õÊ¼»¯
{
      __HAL_RCC_GPIOB_CLK_ENABLE();          //Ê¹ÄÜGPIOBÊ±ÖÓ
      __HAL_RCC_USART3_CLK_ENABLE();          //Ê¹ÄÜUSART3Ê±ÖÓ

      GPIO_Initure.Pin=GPIO_PIN_10;          //PB10
      GPIO_Initure.Mode=GPIO_MODE_AF_PP;       //¸´ÓÃÍÆÍìÊä³ö
      GPIO_Initure.Pull=GPIO_PULLUP;          //ÉÏÀ
      GPIO_Initure.Speed=GPIO_SPEED_FAST;       //¸ßËÙ
      GPIO_Initure.Alternate=GPIO_AF7_USART3; //¸´ÓÃÎªUSART3
      HAL_GPIO_Init(GPIOB,&GPIO_Initure);          //³õÊ¼»&#175

B10

GPIO_Initure.Pin=GPIO_PIN_11; //PB11
HAL_GPIO_Init(GPIOB,&GPIO_Initure); //³õÊ¼»&#175

B11

      __HAL_UART_DISABLE_IT(&UART3_Handler,UART_IT_TC);

#if EN_USART3_RX
      __HAL_UART_ENABLE_IT(&UART3_Handler,UART_IT_RXNE);//¿ªÆô½ÓÊÕÖÐ¶Ï
      HAL_NVIC_EnableIRQ(USART3_IRQn);             //Ê¹ÄÜUSART3ÖÐ¶ÏÍ¨µÀ
      HAL_NVIC_SetPriority(USART3_IRQn,3,0);          //ÇÀÕ¼ÓÅÏÈ¼¶3£¬×ÓÓÅÏÈ¼¶0
      TIM7_Init(100-1,9000-1);    //TIM7_Init(1000-1,9000-1)=100ms
#endif
}
}

0条回答

STM32F429 USART3串口中断无法接收到数据？？？

一周热门更多>

相关问题

相关文章

STM32F429 USART3串口中断无法接收到数据？？？

打开微信“扫一扫”，打开网页后点击屏幕右上角分享按钮

一周热门 更多>

相关问题

相关文章

采纳回答

编辑标签

举报内容

检举类型

检举原因

检举说明(必填)

一周热门更多>