跪求请大神帮忙看看我的程序~折磨我好久了~~

只看该作者 · 2014-4-8 08:37

dsp28335的程序，我想实现的功能是将采集到的ADC的值通过SCI发送到上位机的串口调试工具上，希望能在界面显示我想读的数据~

Uint16 sdataB[2];       // Send data for SCI-B
//Uint16 rdataB[2];       // Received data for SCI-B
Uint16 ConversionCount=0;
Uint16 test=0;
Uint16 Voltage[3];
interrupt void adc_isr(void);
interrupt void scibTxFifoIsr(void);
//interrupt void scibRxFifoIsr(void);
void scib_fifo_init(void);
void ADC_init(void);
//void scib_xmit(Uint16 a);
//void scib_msg(Uint16 * msg);
Uint16 flag;
void main()
{

InitSysCtrl();
InitScibGpio();
EALLOW;
   SysCtrlRegs.HISPCP.all = ADC_MODCLK;       // HSPCLK = SYSCLKOUT/ADC_MODCLK
EDIS;
InitXintf16Gpio();
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();

InitAdc();
scib_fifo_init();
ADC_init();
      EALLOW;  // This is needed to write to EALLOW protected register
   PieVectTable.ADCINT = &adc_isr;
   //PieVectTable.SCIRXINTB=&scibRxFifoIsr;
      PieVectTable.SCITXINTB= &scibTxFifoIsr;
      EDIS;
      PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable the PIE block
      PieCtrlRegs.PIEIER1.bit.INTx6 = 1;    //adc中断1.6
      //PieCtrlRegs.PIEIER9.bit.INTx3=1;    // PIE Group 9, INT3
      PieCtrlRegs.PIEIER9.bit.INTx4=1;    //  9.4发送中断
      IER |= M_INT1; // Enable CPU Interrupt 1
      IER |= M_INT9;       // Enable CPU INT
      EINT;       // Enable Global interrupt INTM
      ERTM;  // For this example, init the ADC

      AdcRegs.ADCTRL2.all = 0x2800;
for(;;);

}
interrupt void  adc_isr(void)
{
      ConversionCount++;
      //Uint16 i;
   // AdcRegs.ADCTRL2.all = 0x2800;
   //while(AdcRegs.ADCST.bit.INT_SEQ1 == 0);
   //for(i=0;i<3;i++)
         //{
            Voltage[0]=((AdcRegs.ADCRESULT0) >>4);
         //}
         // Voltage[1]=AdcRegs.ADCRESULT1 >>4;

         AdcRegs.ADCST.bit.INT_SEQ1_CLR = 1;    // Clear INT SEQ1 bit
         AdcRegs.ADCTRL2.bit.RST_SEQ1 = 1;       // Reset SEQ1
         PieCtrlRegs.PIEACK.all = PIEACK_GROUP1; // Acknowledge interrupt to PIE
         DELAY_US(100);

  //return;
}
interrupt void scibTxFifoIsr(void)
{

Uint16 i=0;
  test++;
for(i=0; i<2; i++)
{

      ScibRegs.SCITXBUF=sdataB;    // Send data
   //while(ScibRegs.SCICTL2.bit.TXRDY!=1){}
      }
// text++;
      ScibRegs.SCIFFTX.bit.TXFFINTCLR=1;  // Clear Interrupt flag
      PieCtrlRegs.PIEACK.all|=0x100;    // Issue PIE ACK
      EINT;

}

/*interrupt void scibRxFifoIsr(void)
{
Uint16 i;
      for(i=0;i<8;i++)
      {
            //ScibRegs.SCIRXBUF.all=Voltage1[ConversionCount];
         sdataB=ScibRegs.SCIRXBUF.all;       // Read data
      }
      ScibRegs.SCIFFRX.bit.RXFFOVRCLR=1;  // Clear Overflow flag
      ScibRegs.SCIFFRX.bit.RXFFINTCLR=1;       // Clear Interrupt flag
      PieCtrlRegs.PIEACK.all|=0x100;       // Issue PIE ack
}*/

void scib_fifo_init()
{
ScibRegs.SCICCR.all =0x0007; // 1 stop bit,  No loopback
                                 // No parity,8 char bits,
                                 // async mode, idle-line protocol
ScibRegs.SCICTL1.all =0x0003; // enable TX, RX, internal SCICLK,
                                 // Disable RX ERR, SLEEP, TXWAKE
ScibRegs.SCICTL1.bit.TXENA=1; //发送使能
ScibRegs.SCICTL2.bit.TXINTENA =1;
  // ScibRegs.SCICTL2.bit.RXBKINTENA =1;
ScibRegs.SCIHBAUD =0x01;
ScibRegs.SCILBAUD =0xE7 ;//9600
//  ScibRegs.SCICCR.bit.LOOPBKENA =0; // Enable loop back
ScibRegs.SCIFFTX.all=0xC020; //发送FIFO为空时发生中断
  // ScibRegs.SCIFFRX.all=0x0028;
  ScibRegs.SCIFFCT.all=0x00;

ScibRegs.SCICTL1.all =0x0023;    // Relinquish SCI from Reset,禁止接收错误中断
ScibRegs.SCIFFTX.bit.TXFIFOXRESET=1;//重新使能接收寄存器
  // ScibRegs.SCIFFRX.bit.RXFIFORESET=1;

}

void ADC_init()
   // Specific ADC setup for this example:
{

         AdcRegs.ADCTRL1.bit.ACQ_PS = ADC_SHCLK;  // 连续采样Sequential mode: Sample rate = 1/[(2+ACQ_PS)*ADC clock in ns]
                     //                   = 1/(3*40ns) =8.3MHz (for 150 MHz SYSCLKOUT)
                                          //                   = 1/(3*80ns) =4.17MHz (for 100 MHz SYSCLKOUT)
                                          // If Simultaneous mode enabled: Sample rate = 1/[(3+ACQ_PS)*ADC clock in ns]
AdcRegs.ADCTRL3.bit.ADCCLKPS = ADC_CKPS;
AdcRegs.ADCTRL3.bit.SMODE_SEL=0;       //顺序采样
AdcRegs.ADCTRL1.bit.SEQ_CASC = 1;       // 级联模式(=0为双序列模式)
AdcRegs.ADCCHSELSEQ1.bit.CONV00 = 0x0; //  采样ADCINA0和ADCINB0
AdcRegs.ADCTRL1.bit.CONT_RUN = 1;       // 连续转换模式

AdcRegs.ADCTRL1.bit.SEQ_OVRD = 1;       // Enable Sequencer override feature
AdcRegs.ADCCHSELSEQ1.all = 0x0;          // Initialize all ADC channel selects to A0
// AdcRegs.ADCCHSELSEQ2.all = 0x0;
// AdcRegs.ADCCHSELSEQ3.all = 0x0;
// AdcRegs.ADCCHSELSEQ4.all = 0x0;
AdcRegs.ADCMAXCONV.bit.MAX_CONV1 = 0x0;
// convert and store in 8 results registers最大采样通道数为2，一次采两个通道，总共可采4个通道
// Start SEQ1 软件触发
AdcRegs.ADCTRL2.all = 0x2800;//0x2800;  //AdcRegs.ADCTRL2.bit.SOC_SEQ1=1; 软件触发，中断使能
//0800为定时中断触发转换，中断使能。

}