求助帖，hc32l130使用内部晶振开启串口，串口发送和接收数据都没有反应，debug直接进不去串口中断

如题，代码如下

#include "ddl.h"
#include "uart.h"
#include "gpio.h"
#include "flash.h"
#include "sysctrl.h"


#define T1_PORT     (3)
#define T1_PIN      (3)
volatile static uint8_t u8RxData;
volatile static uint8_t u8TxCnt = 0;
volatile static uint8_t u8RxCnt = 0;

void App_UartCfg(void);
void App_PortInit(void);
void App_ClkCfg(void);

int32 t main (void)
{
App_ClkCfg () ;

App_PortInit () ;

App_UartCfg();
while (1)
{
 if(u8RxCnt>=1)
    {
    u8RxCnt = 0;

    Uart_SendDataIt(MOP_UART1, ~u8RxData);
    }
}

}


void App_ClkCfg(void)
{
    stc_sysctrl_clk_cfg_t sysctrl_clk_cfg;

    Sysctrl_SetPeripheralGate(SysctrlPeripheralFlash, TRUE);

    Flash_WaitCycle(FlashWaitCycle0);

    sysctrl_SetRCHTrim(SysctrlRchFreq8MHz);

    sysctrl_clk_cfg.enClkSrc = SysctrlClkRCH;
    sysctrl_clk_cfg.enHClkDiv = SysctrlHclkDiv1;
    sysctrl_clk_cfg.enPClkDiv = SysctrlPclkDiv1;

    Sysctrl_ClkInit(&sysctrl_clk_cfg);
}

void Uart1_IRQHandler(void)
{
    if(Uart_GetStatue(M0P_UART1, UartRC))
        {
            Uart_ClrStatus(M0P_UART1, UartRC);
            u8RxData = Uart_ReceiveData(M0P_UART1);
            u8RxCnt++;
        }
    if(Uart_GetStatus(M0P_UART1, UartTC))
        {
            Uart_ClrStatus(M0P_UART1, UartTC);
            u8TxCnt++;
        }

}


void App_PortInit(void)
{
    stc_gpio_cfg_t stcGpioCfg;
    DDL_ZERO_STRUCT(stcGpioCfg);
    Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio, TRUE);

    stcGpioCfg.enDir = GpioDirOut;
    Gpio_Init(GpioPortA, GpioPin2, &stcGpioCfg);
    Gpio_SetAFMode(GpioPortA, GpioPin2, GpioAf1);
    
    stcGpioCfg.enDir = GpioDirIn;
    Gpio_Init(GpioPortA, GpioPin3, &stcGpioCfg);
    Gpio_SetAFMode(GpioPortA, GpioPin3, GpioAf1);
}

void App_UartCfg(void)
{
    stc_uart_cfg_t stcCfg;

    DDL_ZERO_STRUCT(stcCfg);
    Sysctrl_SetPeripheralGate(SysctrlPeripheralUart1, TRUE);

    stcCfg.enRunMode = UartMskMode3;
    stcCfg.enStopBit = UartMsk1bit;
    stcCfg.enMmdorCk = UartMskEven;
    stcCfg.stcBaud.u32Baud = 9600;
    stcCfg.stcBaud.enClkDiv = UartMsk8Or16Div;
    stcCfg.stcBaud.u32Pclk = Sysctrl_GetPClkFreq();
    Uart_Init(M0P_UART1, &stcCfg);

    Uart_ClrStatus(M0P_UART1, UartRC);
    Uart_ClrStatus(M0P_UART1, UartTC);
    Uart_EnableIrq(M0P_UART1, UartRxIrq);
    Uart_EnableIrq(M0P_UART1, UartTxIrq);
    EnableNvic(UART1_IRQn, IrqLevel3, TRUE);
    
}