28027在CCS中的ADC模块的程序改不了寄存器的值！为什么呢？

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reporter发表于 2013-10-31 10:11 | 只看该作者

28027在CCS中的ADC模块的程序改不了寄存器的值！为什么呢？

include, 寄存器, 源程序

F28027在CCS中的ADC模块的程序在调试时改不了寄存器的值，这是为什么呢？？应该已经使能ADC模块了的。
附源程序：

#include &quot;DSP28x_Project.h&quot;&nbsp; &nbsp;
interrupt void tim0_isr(void);
interrupt void ADC_convered(void);
Uint16 ADCINA0_Voltage_sum = 0;
Uint16 ADCINA1_Voltage_sum = 0;
Uint16 ADCINA2_Voltage_sum = 0;
Uint16 ADCINA0_Voltage = 0;
Uint16 ADCINA1_Voltage = 0;
Uint16 ADCINA2_Voltage = 0;
char convered_count = 0;
void main(void)
{
&nbsp;&nbsp;InitSysCtrl();
&nbsp; &nbsp;InitGpio();
&nbsp;&nbsp;DINT;
&nbsp;&nbsp;InitPieCtrl();
IER = 0x0000;&nbsp; &nbsp; IFR = 0x0000;
InitPieVectTable();
&nbsp; &nbsp; InitAdc();
&nbsp; &nbsp; EALLOW;
&nbsp; &nbsp; AdcRegs.ADCSAMPLEMODE.bit.SIMULEN0 = 0; //SOC0、SOC1单一采样&nbsp; &nbsp;
AdcRegs.ADCSAMPLEMODE.bit.SIMULEN2 = 0; //SOC2、SOC3单一采样&nbsp; &nbsp;
AdcRegs.ADCSOC0CTL.bit.CHSEL=0;&nbsp; &nbsp;//SOC通道选择&nbsp; &nbsp;&nbsp; &nbsp;
AdcRegs.ADCSOC1CTL.bit.CHSEL=1;&nbsp; &nbsp;&nbsp; &nbsp;
AdcRegs.ADCSOC2CTL.bit.CHSEL=2;&nbsp; &nbsp;&nbsp; &nbsp;
AdcRegs.ADCSOC0CTL.bit.ACQPS = 6;&nbsp;&nbsp;//采样时间&nbsp; &nbsp;&nbsp; &nbsp;
AdcRegs.ADCSOC1CTL.bit.ACQPS = 6;&nbsp; &nbsp;&nbsp; &nbsp;
AdcRegs.ADCSOC2CTL.bit.ACQPS = 6;&nbsp; &nbsp;&nbsp; &nbsp;
AdcRegs.ADCSOC0CTL.bit.TRIGSEL = 1;&nbsp;&nbsp;//soc触发选择,TIM0&nbsp; &nbsp;
AdcRegs.ADCCTL1.bit.INTPULSEPOS&nbsp;&nbsp;= 1;&nbsp; &nbsp;//结果存入寄存器才产生中断
&nbsp; &nbsp; PieVectTable.ADCINT1 = &amp;ADC_convered;&nbsp; &nbsp;
AdcRegs.INTSEL1N2.bit.INT1SEL = 2;&nbsp; &nbsp; //中断线1选择soc2&nbsp; &nbsp;
AdcRegs.INTSEL1N2.bit.INT1CONT&nbsp;&nbsp;= 0;&nbsp; &nbsp;
AdcRegs.INTSEL1N2.bit.INT1E&nbsp;&nbsp;= 1;&nbsp; &nbsp; //中断使能
&nbsp; &nbsp; PieCtrlRegs.PIEIER1.bit.INTx1 = 1;&nbsp; &nbsp;//使能int1.1&nbsp; &nbsp;&nbsp;&nbsp;EDIS;
/****************设置定时器，用以触发ADC*****************/&nbsp; &nbsp;
CpuTimer0Regs.TPR.bit.TDDR = 59;&nbsp; &nbsp;
CpuTimer0Regs.TPRH.bit.TDDRH = 0; //对输入时钟60分频，60M/60=1M&nbsp; &nbsp;
CpuTimer0Regs.PRD.all = 500000;//定时0.5s&nbsp; &nbsp;
CpuTimer0Regs.TCR.bit.TRB = 1; //reload&nbsp; &nbsp;
CpuTimer0Regs.TCR.bit.TIE = 1; //使能中断&nbsp; &nbsp;
CpuTimer0Regs.TCR.bit.TSS = 0; //开始计数
&nbsp; &nbsp; EALLOW;&nbsp; &nbsp;&nbsp;&nbsp

ieVectTable.TINT0 = &amp;tim0_isr;&nbsp; &nbsp;
PieCtrlRegs.PIECTRL.bit.ENPIE = 1;&nbsp; &nbsp;//使能PIE&nbsp; &nbsp;
PieCtrlRegs.PIEIER1.bit.INTx7 = 1;&nbsp; &nbsp;//使能int1.7&nbsp; &nbsp;
IER |= 0x0001;//使能GROUP1&nbsp; &nbsp;
EINT;&nbsp; &nbsp;
EDIS;
&nbsp;&nbsp;}
interrupt void ADC_convered(void)
{&nbsp; &nbsp;&nbsp; &nbsp;//LED_toggle(LED2);&nbsp; &nbsp;&nbsp;&nbsp;
ADCINA0_Voltage_sum += AdcResult.ADCRESULT0;&nbsp; &nbsp;&nbsp;&nbsp;
ADCINA1_Voltage_sum += AdcResult.ADCRESULT1;&nbsp; &nbsp;&nbsp;&nbsp;
ADCINA2_Voltage_sum += AdcResult.ADCRESULT2;&nbsp; &nbsp;&nbsp;&nbsp;
AdcRegs.ADCINT标志寄存器CLR.bit.ADCINT1 = 1;&nbsp; &nbsp;&nbsp;&nbsp;
PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;&nbsp; &nbsp;&nbsp;&nbsp;
convered_count++;&nbsp; &nbsp;&nbsp;&nbsp;
/*********转换16次，取平均值*********/&nbsp; &nbsp;&nbsp;&nbsp;
if(convered_count &gt; 15)&nbsp; &nbsp;&nbsp;&nbsp;
{&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; ADCINA0_Voltage = ADCINA0_Voltage_sum &gt;&gt; 4;//相当于除以16&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;
&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;ADCINA1_Voltage = ADCINA1_Voltage_sum &gt;&gt; 4;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;
&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;ADCINA2_Voltage = ADCINA2_Voltage_sum &gt;&gt; 4;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;
&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;ADCINA0_Voltage_sum = 0;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;
&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;ADCINA1_Voltage_sum = 0;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;
&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; ADCINA2_Voltage_sum = 0;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;
&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;convered_count = 0;&nbsp; &nbsp;&nbsp; &nbsp;}&nbsp;&nbsp;
}
&nbsp;&nbsp;interrupt void tim0_isr(void)
{&nbsp; &nbsp;&nbsp;&nbsp

ieCtrlRegs.PIEACK.all = PIEACK_GROUP1;&nbsp;&nbsp;}
//===========================================================================
// No more.
//===========================================================================

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