28069 AD问题

Eric：

      你好，如果不设置中断可以连续触发吗，现在不希望开AD中断，有办法吗

搞定了吗？能发个配置的范例吗？想看一下，谢谢

刚学DSP,这个弄了1个星期了，还没搞懂，能发个配置的范例吗？想看一下，谢谢

我这样可以吗？急用

// Configure ADC
 EALLOW;

 AdcRegs.ADCCTL1.bit.ADCREFSEL = 1;      // Page485 选择外部VREF
    AdcRegs.ADCCTL2.bit.ADCNONOVERLAP = 0; // Enable non-overlap mode 0允许重叠/1不允许

 AdcRegs.ADCCTL1.bit.INTPULSEPOS = 1; //ADCINT1 trips after AdcResults latch
 AdcRegs.INTSEL1N2.bit.INT2E     = 1; //Enabled ADCINT2
 AdcRegs.INTSEL1N2.bit.INT2CONT  = 1; //Disable ADCINT2 Continuous mode
 AdcRegs.INTSEL1N2.bit.INT2SEL = 1; //setup EOC1 to trigger ADCINT2 to fire
 AdcRegs.ADCSOC0CTL.bit.CHSEL  = 0; //set SOC0 channel select to ADCINA0
 AdcRegs.ADCSOC1CTL.bit.CHSEL  = 8; //set SOC1 channel select to ADCINB0
 AdcRegs.ADCSOC0CTL.bit.TRIGSEL  = 0; //set SOC0 start trigger on software
 AdcRegs.ADCSOC1CTL.bit.TRIGSEL  = 0; //set SOC1 start trigger on software
  AdcRegs.ADCSOC0CTL.bit.ACQPS  = 6; //set SOC0 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)
 AdcRegs.ADCSOC1CTL.bit.ACQPS  = 6; //set SOC0 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)
 AdcRegs.ADCINTSOCSEL1.bit.SOC0  = 2; //ADCINT2 will trigger SOC0. TRIGSEL field is ignored.
 AdcRegs.ADCINTSOCSEL2.bit.SOC8  = 2; //ADCINT2 will trigger SOC0. TRIGSEL field is ignored.

    //使用ADCSOCFRC1启动
    AdcRegs.ADCSOCFRC1.bit.SOC0 = 1;
    AdcRegs.ADCSOCFRC1.bit.SOC8 = 1;

 EDIS;

中断函数部分

__interrupt void  adc_isr(void)
{

    Voltage1[0] = AdcResult.ADCRESULT0;   //ADCINA0
    Voltage2[0] = AdcResult.ADCRESULT1;   //ADCINB0  正常
    Voltage1[1] = 0;   //ADCINA0
    Voltage2[1] = 0;   //ADCINB0  正常
    Voltage1[2] = 0;   //ADCINA0
    Voltage2[2] = 0;   //ADCINB0  正常
    Voltage1[3] = 0;   //ADCINA0
    Voltage2[3] = 0;   //ADCINB0  正常

  AdcRegs.ADCINTFLGCLR.bit.ADCINT2 = 1;  //Clear ADCINT1 flag reinitialize for next SOC
  PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;   // Acknowledge interrupt to PIE

  return;
}

ADCINT1  行吗？？一定要ADCINT2？？

yanqiang,

ADCINT1也可以。不过你这样子连续采样，会不断进入ADC中断里面去。占用CPU资源。

Eric

可以查看controlSUITE中的例程，然后在例程基础上进行修改就可以了。

Eric

我是想改成AdcRegs.INTSEL1N2.bit.INT1CONT  = 1  连续转换模式，然后中断不开，用DMA传送ADC值到我的内存，这样就不会占用CPU资源了吧~~~应该可以的吧？？ 

贡献一下调好的代码吧，能用了

 EALLOW;

 AdcRegs.ADCCTL1.bit.ADCREFSEL = 1;      // Page485 选择外部VREF
    AdcRegs.ADCCTL2.bit.ADCNONOVERLAP = 0; // Enable non-overlap mode 0允许重叠/1不允许

 AdcRegs.INTSEL1N2.bit.INT1E     = 1; //Enabled ADCINT1
 AdcRegs.INTSEL1N2.bit.INT1CONT  = 1; //Disable ADCINT1 Continuous mode
 AdcRegs.INTSEL1N2.bit.INT1SEL = 0; //setup EOC0 to trigger ADCINT1 to fire

 AdcRegs.ADCSAMPLEMODE.bit.SIMULEN0 = 1; // 同时采样
 AdcRegs.ADCSOC0CTL.bit.CHSEL  = 0; //set SOC0 channel select to ADCINA0
 AdcRegs.ADCSOC1CTL.bit.CHSEL  = 8; //set SOC1 channel select to ADCINB0  page510

 AdcRegs.ADCSOC0CTL.bit.TRIGSEL  = 0; //set SOC0 start trigger on software
 AdcRegs.ADCSOC1CTL.bit.TRIGSEL  = 0; //set SOC1 start trigger on software

  AdcRegs.ADCSOC0CTL.bit.ACQPS  = 6; //set SOC0 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)
 AdcRegs.ADCSOC1CTL.bit.ACQPS  = 6; //set SOC0 S/H Window to 7 ADC Clock Cycles, (6 ACQPS plus 1)

 AdcRegs.ADCCTL1.bit.INTPULSEPOS = 1; //ADCINT1 trips after AdcResults latch

 AdcRegs.ADCINTSOCSEL1.bit.SOC0  = 1; //软件触发源ADCINT1
 AdcRegs.ADCINTSOCSEL1.bit.SOC1  = 1; //ADCINT2 will trigger SOC0. TRIGSEL field is ignored.

    //使用ADCSOCFRC1启动
    //AdcRegs.ADCSOCFRC1.all = 0X0101;   //0000 0001 0000 0001
    AdcRegs.ADCSOCFRC1.bit.SOC0 = 1;
    AdcRegs.ADCSOCFRC1.bit.SOC8 = 1;

 EDIS;

要把

AdcRegs.INTSEL1N2.bit.INT1SEL = 0; // 0 改成1

AdcRegs.ADCSOCFRC1.bit.SOC8 = 1; //SOC8 改成SOC1

Eric