玄宇芯-HC32L136板子串口接收数据串问题

只看该作者 · 2020-10-19 21:03

我在使用玄宇芯的HC32L136的DEMO板，在一直官方的SDK uart_int例子，自发自收，第一个字节能正常收到，后面的就不对了，请问有人碰到过吗？

只看该作者 · 2020-10-19 21:04

void TxIntCallback(void)
{

}

void uart_send_byte(uint8_t by);

void RxIntCallback(void)
{
uint8_t d;
uint8_t rxBuffer[256] ={0};
//Uart_ClrStatus(UARTCH1,UartRC);
d=Uart_ReceiveData(UARTCH1);

uart_send_byte(d);

}

void ErrIntCallback(void)
{

}
void PErrIntCallBack(void)
{
}
void CtsIntCallBack(void)
{
}

void Uart_PortInit(void)
{
stc_gpio_config_t stcGpioCfg;
DDL_ZERO_STRUCT(stcGpioCfg);
stcGpioCfg.enDir = GpioDirOut;
Gpio_Init(GpioPortA,GpioPin2,&stcGpioCfg);
Gpio_SetAfMode(GpioPortA,GpioPin2,GpioAf1);//TX
stcGpioCfg.enDir = GpioDirIn;
Gpio_Init(GpioPortA,GpioPin3,&stcGpioCfg);
Gpio_SetAfMode(GpioPortA,GpioPin3,GpioAf1);//RX
}

void uart_init(void)
{
uint16_t u16Scnt = 0;
stc_gpio_config_t stcGpioCfg;
stc_uart_config_t  stcConfig;
stc_uart_irq_cb_t stcUartIrqCb;
stc_uart_multimode_t stcMulti;
stc_uart_baud_t stcBaud;

en_uart_mmdorck_t enTb8;

DDL_ZERO_STRUCT(stcConfig);
DDL_ZERO_STRUCT(stcUartIrqCb);
DDL_ZERO_STRUCT(stcMulti);
DDL_ZERO_STRUCT(stcBaud);

Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio,TRUE);//使能GPIO模块时钟
Sysctrl_SetPeripheralGate(SysctrlPeripheralUart1,TRUE);//使能uart1模块时钟

Uart_PortInit();

stcUartIrqCb.pfnRxIrqCb = RxIntCallback;//中断入口地址
stcUartIrqCb.pfnTxIrqCb = TxIntCallback;
stcUartIrqCb.pfnRxFEIrqCb = ErrIntCallback;
stcUartIrqCb.pfnPEIrqCb = PErrIntCallBack;
stcUartIrqCb.pfnCtsIrqCb  = CtsIntCallBack;
stcConfig.pstcIrqCb = &stcUartIrqCb;
stcConfig.bTouchNvic = TRUE;

if(TRUE == stcConfig.bTouchNvic)
{
EnableNvic(UART1_IRQn,IrqLevel3,TRUE);
}

stcConfig.enRunMode = UartMode3;//模式3
stcConfig.enStopBit = Uart1bit;  //1bit停止位

stcMulti.enMulti_mode = UartNormal;//正常工作模式
Uart_SetMultiMode(UARTCH1,&stcMulti);//多主机单独配置
enTb8 = UartDataOrAddr;//偶校验
Uart_SetMMDOrCk(UARTCH1,enTb8);

Uart_Init(UARTCH1, &stcConfig);//串口初始化

Uart_SetClkDiv(UARTCH1,Uart8Or16Div);//采样分频
stcBaud.u32Pclk = Sysctrl_GetPClkFreq();
stcBaud.enRunMode = UartMode3;
stcBaud.u32Baud = 9600;
u16Scnt = Uart_CalScnt(UARTCH1,&stcBaud);//波特率计算
Uart_SetBaud(UARTCH1,u16Scnt);//波特率设置

Uart_ClrStatus(UARTCH1,UartRC);//清接收请求
Uart_EnableIrq(UARTCH1,UartRxIrq);//使能串口中断
Uart_EnableFunc(UARTCH1,UartRx);//使能收发

}

void uart_send_byte(uint8_t by)
{
Uart_SendData(UARTCH1, by);
}