原创 DSP2812串口设置及中断服务之C++程序

    }

    ReceiveWritePtr = 0;

    ReceiveReadPtr = 0;

    ReceivePosition = 0;

    ReceiveCount = 0;

    SendWritePtr = 0;

    SendReadPtr = 0;

    SendBusy = false;

    State = 0;

    EALLOW;

       GpioMuxRegs.GPFMUX.bit.SCITXDA_GPIOF4 = 1;

       GpioMuxRegs.GPFMUX.bit.SCIRXDA_GPIOF5 = 1;

    EDIS;

    /* loopback   8 bit data */

    SciaRegs.SCICCR.all = 0x07;    // 1 bit stop, disable parity, idle mode, 8 bits data

    SciaRegs.SCICTL1.all = 0x03; // enable TX

    SciaRegs.SCICTL2.all = 0x03; //

    SciaRegs.SCIHBAUD = 0;

    SciaRegs.SCILBAUD = 0xf3;//SCI_PRD & 0xff;//0xF3;

    SciaRegs.SCICTL1.all = 0x23;

//    PieCtrlRegs.PIECRTL.bit.ENPIE = 1;   // Enable the PIE block

    PieCtrlRegs.PIEIER9.bit.INTx1 = 1;

    PieCtrlRegs.PIEIER9.bit.INTx2 = 1;

    /*设置中断服务程序入口地址*/

    EALLOW;    // This is needed to write to EALLOW protected registers

    PieVectTable.TXAINT = &ISRTxUart;

    PieVectTable.RXAINT = &ISRRxUart;

    EDIS;   // This is needed to disable write to EALLOW protected registers

    /*开中断*/

    IER |= M_INT9;

}

//KEY7压键事件处理

void KeyboardObj::Key17(void)

{

       System.BeepOn();

    Lcd.SetDisplayPos(2, 0);//汉字定位到上行左端

    Lcd.Display("KEY7键单击事件!!");

    Uart.puts("KEY7键单击事件");

}