CC2530的双串口在协议栈中怎么配置

深碍√TFBOYSˉ_ 2022-07-16 06:22 224阅读 0赞

一个口使用DMA方式，另一个口使用ISR方式，配置好初始化，修改hal\_board\_cfg.h内关于DMA和ISR的相关设置，修改代码如下

#if HAL_UART
    // Always prefer to use DMA over ISR.
    #if HAL_DMA
    #ifndef HAL_UART_DMA
    #if (defined ZAPP_P1) || (defined ZTOOL_P1)
    #define HAL_UART_DMA  1
    #elif (defined ZAPP_P2) || (defined ZTOOL_P2)
    #define HAL_UART_DMA  2
    #else
    #define HAL_UART_DMA  1
    #endif
    #endif
    #define HAL_UART_ISR  2
    #else
    #ifndef HAL_UART_ISR
    #if (defined ZAPP_P1) || (defined ZTOOL_P1)
    #define HAL_UART_ISR  1
    #elif (defined ZAPP_P2) || (defined ZTOOL_P2)
    #define HAL_UART_ISR  2
    #else
    #define HAL_UART_ISR  1
    #endif
    #endif
    #define HAL_UART_DMA  0
    #endif

这样就选择了port0 采用DMA方式，port1采用ISR方式。

接下来是在应用文件中初始化两个串口。

//==========================================================================
    // 串口0初始化函数
    //==========================================================================
    static void FS_Uart_Init(void)
    { 
      halUARTCfg_t uartConfig;
      
      uartConfig.configured            = TRUE;              // 2x30 don't care - see uart driver.
      uartConfig.baudRate             = HAL_UART_BR_115200;
      uartConfig.flowControl          = FALSE;
      uartConfig.flowControlThreshold = 256; // 2x30 don't care - see uart driver.
      uartConfig.rx.maxBufSize        = 70;  // 2x30 don't care - see uart driver.
      uartConfig.tx.maxBufSize        = 256;  // 2x30 don't care - see uart driver.
      uartConfig.idleTimeout            = 6;   // 2x30 don't care - see uart driver.
      uartConfig.intEnable               = TRUE;              // 2x30 don't care - see uart driver.
      uartConfig.callBackFunc         = FS_Uart_CallBack;
      HalUARTOpen (HAL_UART_PORT_0, &uartConfig);
    }

//==========================================================================
    // 串口1初始化函数
    //==========================================================================
    static void FS_Uart1_Init(void)
    { 
      halUARTCfg_t uartConfig;
      
      uartConfig.configured           = TRUE;              // 2x30 don't care - see uart driver.
      uartConfig.baudRate             = HAL_UART_BR_115200;
      uartConfig.flowControl          = FALSE;
      uartConfig.flowControlThreshold = 32; // 2x30 don't care - see uart driver.
      uartConfig.rx.maxBufSize        = 32;  // 2x30 don't care - see uart driver.
      uartConfig.tx.maxBufSize        = 32;  // 2x30 don't care - see uart driver.
      uartConfig.idleTimeout             = 6;   // 2x30 don't care - see uart driver.
      uartConfig.intEnable                = TRUE;              // 2x30 don't care - see uart driver.
      uartConfig.callBackFunc          = FS_Uart_CallBack;  指定串口回调函数
      HalUARTOpen (HAL_UART_PORT_1, &uartConfig);
    }

串口函数的读出  
从以上初始化代码中很明显的看到，两个port口采用了两个初始化函数但去采用了同一个回调函数，实际上也只能采用这一个回调函数  
串口的读出：

//====================================================================
    // @brief   串口回调函数
    //====================================================================
    static void FS_Uart_CallBack(uint8 port,uint8 event)
    {   
     
      int i ;
       //(port == HAL_UART_PORT_0 )&&
       if(( event & ( HAL_UART_RX_FULL | HAL_UART_RX_ABOUT_FULL | HAL_UART_RX_TIMEOUT ) ) ) 
        {   
          if(port == HAL_UART_PORT_0)
          {         
            HalUARTRead(HAL_UART_PORT_0, &i8_uart_buf[count], len);   //读取串口数据到buf指向的内存  
              //此处添加数据解析函数    
          }
          else//port == HAL_UART_PORT_1
          {
            i8_uart1_len = Hal_UART_RxBufLen(HAL_UART_PORT_1); //取出本次接收到的字符长度              
            HalUARTRead(HAL_UART_PORT_1, i8_uart1_buf, i8_uart1_len);
            osal_set_event( GenericApp_TaskID, GENERICAPP_FS_UART1_CALLBACK );
          }
        }
      
    }