hc32l136 Lpuart发生异常

只看该作者 · 2025-1-7 15:20

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);

}

//===================================

// 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();

}

hc32l136 Lpuart发生异常

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