28035 ADC用软件直接触发的问题

各位好，

我想使用软件触发ADC进行连续采样，但是我将.ADCSOCFRC1位置1后，在WATCH WINDOW中看.ADCSOCFRC1仍然是0,，

因此ADC也没有正确工作，希望各位看下代码帮我找找原因，谢谢。

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void main()
{
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file.
   InitSysCtrl();
   
// Step 2. Initalize GPIO: 
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio();  // Skipped for this example
  
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts 
   DINT;
   InitEPwm6Gpio();
// Initialize PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.  
// This function is found in the DSP2833x_PieCtrl.c file.
   InitPieCtrl();

// Disable CPU interrupts and clear all CPU interrupt flags:
   IER = 0x0000;
   IFR = 0x0000;
   InitPieVectTable();
// Interrupts that are used in this example are re-mapped to
// ISR functions found within this file.
   EALLOW;  // This is needed to write to EALLOW protected register
   PieVectTable.ADCINT1 = &adc_isr;
// Enable ADCINT1 in PIE
   PieCtrlRegs.PIEIER1.bit.INTx1 = 1;	// Enable INT 1.1 in the PIE
   EDIS;    // This is needed to disable write to EALLOW protected registers

// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2803x_InitPeripherals.c
// InitPeripherals(); // Not required for this example
   InitAdc();  // For this example, init the ADC
   InitEPwm6();	

// Step 5. User specific code, enable interrupts:
   IER |= M_INT1; 						// Enable CPU Interrupt 1
   EINT;          						// Enable Global interrupt INTM
   ERTM;          						// Enable Global realtime interrupt DBGM

   LoopCount = 0;
   ConversionCount = 0;

   for(i=0;i<512;i++)
   {
		SampleTable[ConversionCount] = 0;
		ConversionCount++;
   }
   ConversionCount = 0;

   Adc_Config();
//Force start of conversion on SOC0
   EALLOW;
   AdcRegs.ADCSOCFRC1.all = 0x03;
   EDIS;
   	   
   for(;;)
   {
		asm("NOP");
  	   

   }
}

interrupt void adc_isr(void)
{
	//Wait for end of conversion.
    while(AdcRegs.ADCINTFLG.bit.ADCINT1 == 0){}  //Wait for ADCINT1
    AdcRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;        //Clear ADCINT1

  	SampleTable[ConversionCount] = AdcResult.ADCRESULT0;
  
  // If 512 conversions have been logged, start over
 	if(ConversionCount == 512)
  	{
     	ConversionCount = 0;
 	}
  	else ConversionCount++;

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

  	return;
}

void Adc_Config()
{
	// Configure ADC
	EALLOW;
	AdcRegs.ADCCTL1.bit.INTPULSEPOS	= 1;	//ADCINT1 trips after AdcResults latch
	AdcRegs.INTSEL1N2.bit.INT1E     = 1;	//Enabled ADCINT1
	AdcRegs.INTSEL1N2.bit.INT1CONT  = 0;	//Disable ADCINT1 Continuous mode
	AdcRegs.INTSEL1N2.bit.INT1SEL	= 1;	//setup EOC1 to trigger ADCINT1 to fire
	AdcRegs.ADCSOC0CTL.bit.CHSEL 	= 7;	//set SOC0 channel select to ADCINA7
	AdcRegs.ADCSOC1CTL.bit.CHSEL 	= 7;	//set SOC1 channel select to ADCINA7
	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  = 1;	//ADCINT1 will trigger SOC0. TRIGSEL field is ignored.
	AdcRegs.ADCINTSOCSEL1.bit.SOC1  = 1;	//ADCINT1 will trigger SOC0. TRIGSEL field is ignored.
	EDIS;
}
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谢谢各位了。