【DSP】TMS320F28035 ADC例程（软件触发+中断）

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我是靠谱客的博主醉熏音响，最近开发中收集的这篇文章主要介绍【DSP】TMS320F28035 ADC例程（软件触发+中断），觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

#include "DSP28x_Project.h"

interrupt void adc_isr(void);

Uint16 ConversionCount;
Uint16 Voltage1[10];
Uint16 Voltage2[10];

main()
{
   InitSysCtrl();

   DINT;
   InitPieCtrl();
   IER = 0x0000;
   IFR = 0x0000;
   InitPieVectTable();

   EALLOW;
   PieVectTable.ADCINT1 = &adc_isr; //映射ADC中断
   EDIS;

   InitAdc();

   PieCtrlRegs.PIEIER1.bit.INTx1 = 1;   //使能PIE级INT1.1中断
   IER |= M_INT1;                       //使能CPU级INT1中断
   EINT;                                //使能总中断

   ConversionCount = 0;

    EALLOW;
    AdcRegs.ADCCTL1.bit.INTPULSEPOS = 1;    //转换完成前一个ADC时钟周期产生EOC
    AdcRegs.INTSEL1N2.bit.INT1E     = 1;    //使能ADCINT1
    AdcRegs.INTSEL1N2.bit.INT1CONT  = 0;    //关闭连续模式
    AdcRegs.INTSEL1N2.bit.INT1SEL   = 1;    //将ADCINT1映射到EOC1
    AdcRegs.ADCSOC0CTL.bit.CHSEL    = 0;    //将ADCINA0映射到通道0
    AdcRegs.ADCSOC1CTL.bit.CHSEL    = 1;    //将ADCINA1映射到通道1
    AdcRegs.ADCSOC0CTL.bit.TRIGSEL  = 0;    //软件触发SOC0
    AdcRegs.ADCSOC1CTL.bit.TRIGSEL  = 0;    //软件触发SOC1
    AdcRegs.ADCSOC0CTL.bit.ACQPS    = 6;    //设置窗口采样次数
    AdcRegs.ADCSOC1CTL.bit.ACQPS    = 6;    //设置窗口采样次数
    EDIS;

    AdcRegs.ADCSOCFRC1.all = 0x0003;//强制给通道0和1产生SOC信号

   for(;;)
   {
   }

}


interrupt void  adc_isr(void)
{

  Voltage1[ConversionCount] = AdcResult.ADCRESULT0;
  Voltage2[ConversionCount] = AdcResult.ADCRESULT1;

  if(ConversionCount == 9)
  {
     ConversionCount = 0;
  }
  else ConversionCount++;

  AdcRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;     //清除EOC1信号（ADCINT1）

  AdcRegs.ADCSOCFRC1.all = 0x0003;//强制给通道0和1产生SOC信号

  PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;   //写1清0，写0无效
}