hc32l136 Lpuart发生异常

只看该作者 · 2025-1-7 15:23

当发送指令放置在接收中断时，一切正常。如果把发送中断移值主程序，偶尔就会出现发送指令不执行或延迟执行的现象。
//===================================
// 初始化Lpuart
//===================================
void lpuart_init(void)
{
uint16_t u16Scnt = 0;
stc_gpio_config_t stcGpioCfg;
stc_lpuart_sclk_sel_t stcSclk;
stc_lpuart_config_t  stcConfig;
stc_lpuart_irq_cb_t stcLPUartIrqCb;
stc_lpuart_multimode_t stcMulti;
stc_lpuart_baud_t stcBaud;
DDL_ZERO_STRUCT(stcConfig);
DDL_ZERO_STRUCT(stcLPUartIrqCb);
DDL_ZERO_STRUCT(stcMulti);
DDL_ZERO_STRUCT(stcBaud);
DDL_ZERO_STRUCT(stcGpioCfg);
DDL_ZERO_STRUCT(stcSclk);
Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio, TRUE);
Sysctrl_SetPeripheralGate(SysctrlPeripheralLpUart1, TRUE);
stcGpioCfg.enDir =  GpioDirOut;
Gpio_Init(GpioPortA, GpioPin0, &stcGpioCfg); //TX
stcGpioCfg.enDir =  GpioDirIn;
stcGpioCfg.enPuPd = GpioPu;
Gpio_Init(GpioPortA, GpioPin1, &stcGpioCfg); //RX
Gpio_SetAfMode(GpioPortA, GpioPin0, GpioAf2);
Gpio_SetAfMode(GpioPortA, GpioPin1, GpioAf2);
stcLPUartIrqCb.pfnRxIrqCb = LPUartRxIntCallback;
stcLPUartIrqCb.pfnTxIrqCb = NULL;
stcLPUartIrqCb.pfnRxFEIrqCb = NULL;
stcLPUartIrqCb.pfnPEIrqCb = NULL;
stcLPUartIrqCb.pfnCtsIrqCb  = NULL;
stcConfig.pstcIrqCb = &stcLPUartIrqCb;
stcConfig.bTouchNvic = TRUE;
stcConfig.enStopBit = LPUart1bit;
stcConfig.enRunMode = LPUartMode1;//
stcSclk.enSclk_Prs = LPUart4Or8Div;
stcSclk.enSclk_sel = LPUart_Rcl;
stcConfig.pstcLpuart_clk = &stcSclk;
stcMulti.enMulti_mode = LPUartNormal;
stcConfig.pstcMultiMode = &stcMulti;
LPUart_Init(LPUART1, &stcConfig);
LPUart_SetClkDiv(LPUART1, LPUart4Or8Div);
stcBaud.u32Sclk = LPUart_GetSclk(LPUART1);
stcBaud.enRunMode = LPUartMode1;
stcBaud.u32Baud = 9600;
u16Scnt = LPUart_CalScnt(LPUART1, &stcBaud);
LPUart_SetBaud(LPUART1, u16Scnt);
LPUart_EnableIrq(LPUART1, LPUartRxIrq);
LPUart_ClrStatus(LPUART1, LPUartRC);
LPUart_EnableFunc(LPUART1, LPUartRx);
}
//===================================
// LPUART 中断服务函数
//===================================
void LPUartRxIntCallback(void)
{
Uartbuff[UartRX_dp++] = LPUart_ReceiveData(LPUART1);;
if(UartRX_dp >= 8)
{
      if( (Uartbuff[0] == PollAdd) || (Uartbuff[0] == 0) )
      {
         if((Uartbuff[1] == 3) || (Uartbuff[1] == 6) || (Uartbuff[1] == 8))
         {
            ISRcrc16 = ISRcal_crc16(Uartbuff, 6);
            if( (Uartbuff[6] == ((uint8_t)ISRcrc16)) && ( Uartbuff[7] == ((uint8_t)(ISRcrc16 >> 8))) )
            {
                  //准备发送
                  UartHartrecok = 0x55;
                  if((Uartbuff[1] == 3) || (Uartbuff[1] == 6))
                     **.ReportSum** = 0;
                  //                                     Rxreal**=0;
                  UartRX_dp = 0;
            }
            code16 = 0;
         }
         else if(Uartbuff[1] == 0x10)
         {
            if(UartRX_dp >= (Uartbuff[6] + 9))
            {
                  ISRcrc16 = ISRcal_crc16(Uartbuff, Uartbuff[6] + 7);
                  if( (Uartbuff[Uartbuff[6] + 7] == ((uint8_t)ISRcrc16)) && ( Uartbuff[Uartbuff[6] + 8] == ((uint8_t)(ISRcrc16 >> 8))) )
                  {
                     //准备发送
                     UartHartrecok = 0x55;

                     **.ReportSum** = 0;
                     //                      Rxreal**=0;
                     UartRX_dp = 0;
                  }
                  code16 = 0;  //20220419
            }
            else code16 = 0x55;             //未收完
         }
         else code16 = 0;
      }
      if( (UartHartrecok != 0x55) && (code16 != 0x55) )                               //数据不对，移除最旧的一个字节
      {
         uint8_t i;
         for(i = 0; i < UartRX_dp - 1; i++)       Uartbuff = Uartbuff[i + 1];
         UartRX_dp -= 1;
      }
      if(UartHartrecok == 0x55)
      {
         MODBUSManagement();
      }

}
}
//===================================
// LPUART发送命令处理函数
//===================================
void MODBUSManagement(void)
{
if(UartHartrecok == 0x55)
{
      uint8_t UartTX_cn;
      UartHartrecok = 0;
      UartTX_cn = Uart_rx_deal(Uartbuff);
      /*数据发送*/
      for(uint8_t i = 0; i < UartTX_cn; i++)
      {
         LPUart_SendData(LPUART1, Uartbuff);
      }
}
}

只看该作者 · 2025-1-7 15:24

//===================================
// 主函数
//===================================
int32_t main(void)
{
lpuart_init();
初始化
while(1)
{
      Wdt_Feed();
      MODBUSManagement();
      if((!**.M50** || Resetdly > 0) && Ovmagdly == 0)
      {
         //LCDLIB_PrintRSSI(4);//关闭信号强度显示
         stcConfig.enSLEEPDEEP = SlpDpEnable;
         Lpm_Config(&stcConfig);
         Lpm_GotoLpmMode();
      }
      else
      {
         stcConfig.enSLEEPDEEP = SlpDpDisable;
         Lpm_Config(&stcConfig);
         Lpm_GotoLpmMode();
      }
}
}
如果把发送中断移值主程序，偶尔就会出现发送指令不执行或延迟执行的现象。