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本文來源電子發(fā)燒友社區(qū)，作者：yjp，帖子地址：https://bbs.elecfans.com/jishu_2293870_1_1.html

ADC例子如下
首先配置ADC，對ADC進(jìn)行初始化。
作用：配置ADC**********************/void ADC_Init(void){ EALLOW; AdcRegs.ADCCTL1.bit.ADCREFSEL = 0; /NT脈沖產(chǎn)生在ADC結(jié)果鎖定到其結(jié)果寄存器之前發(fā)生一個周期/ AdcRegs.ADCCTL1.bit.INTPULSEPOS = 1; /中斷選擇3寄存器/ AdcRegs.INTSEL3N4.bit.INT3E = 1; /每當(dāng)產(chǎn)生EOC脈沖時，都會產(chǎn)生附加脈沖，而不管是否清除了標(biāo)記位/ AdcRegs.INTSEL3N4.bit.INT3CONT = 0; /EOC6是ADCINT3的觸發(fā)器*/ AdcRegs.INTSEL3N4.bit.INT3SEL = 6;AdcRegs.ADCSAMPLEMODE.all = 1;
?
/*將SOC0設(shè)置為樣本A0*/
AdcRegs.ADCSOC0CTL.bit.CHSEL = 0;
/*將SOC1設(shè)置為樣本A1*/
AdcRegs.ADCSOC1CTL.bit.CHSEL = 1;
/*將SOC2設(shè)置為樣本A2*/
AdcRegs.ADCSOC2CTL.bit.CHSEL = 2;
/*將SOC3設(shè)置為樣本A3*/
AdcRegs.ADCSOC3CTL.bit.CHSEL = 3;
/*將SOC4設(shè)置為樣本A4*/
AdcRegs.ADCSOC4CTL.bit.CHSEL = 4;
/*將SOC5設(shè)置為樣本A6*/
AdcRegs.ADCSOC5CTL.bit.CHSEL = 6;
/*將SOC6設(shè)置為樣本A7*/
AdcRegs.ADCSOC6CTL.bit.CHSEL = 7;
/*將SOC7設(shè)置為樣本B1*/
AdcRegs.ADCSOC7CTL.bit.CHSEL = 9;
/*將SOC8設(shè)置為樣本B2*/
AdcRegs.ADCSOC8CTL.bit.CHSEL = 10;
/*將SOC9設(shè)置為樣本B3*/
AdcRegs.ADCSOC9CTL.bit.CHSEL = 11;
/*將SOC10設(shè)置為樣本B4*/
AdcRegs.ADCSOC10CTL.bit.CHSEL = 12;
/*將SOC11設(shè)置為樣本B6*/
AdcRegs.ADCSOC11CTL.bit.CHSEL = 14;
/*將SOC12設(shè)置為樣本B7*/
AdcRegs.ADCSOC12CTL.bit.CHSEL = 15;
?
/*SOCx觸發(fā)源選擇:ADCTRIG5-ePWM1，ADCSOCA*/
AdcRegs.ADCSOC0CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC1CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC2CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC3CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC4CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC5CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC6CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC7CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC8CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC9CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC10CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC11CTL.bit.TRIGSEL = 0x05;
AdcRegs.ADCSOC12CTL.bit.TRIGSEL = 0x05;
?
/*采樣窗口長達(dá)6個周期（2n+6個時鐘周期）*/
AdcRegs.ADCSOC0CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC1CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC2CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC3CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC4CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC5CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC6CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC7CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC8CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC9CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC10CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC11CTL.bit.ACQPS = 0;
AdcRegs.ADCSOC12CTL.bit.ACQPS = 0;
?
EDIS;
}
ADC的中斷服務(wù)函數(shù)如下Uint32 adcVal[16];/***********************函數(shù)名：void INTERRUPT adc_isr() *參數(shù)：無 *返回值：無 *作用：adc中斷服務(wù)函數(shù)**********************/void INTERRUPT adc_isr(){ while(AdcRegs.ADCCTL1.bit.ADCBSY == 1) { }adcVal[0] = AdcResult.ADCRESULT0;
adcVal[1] = AdcResult.ADCRESULT1;
adcVal[2] = AdcResult.ADCRESULT2;
adcVal[3] = AdcResult.ADCRESULT3;
adcVal[4] = AdcResult.ADCRESULT4;
adcVal[5] = AdcResult.ADCRESULT5;
adcVal[6] = AdcResult.ADCRESULT6;
?
adcVal[7] = AdcResult.ADCRESULT7;
adcVal[8] = AdcResult.ADCRESULT8;
adcVal[9] = AdcResult.ADCRESULT9;
adcVal[10] = AdcResult.ADCRESULT10;
adcVal[11] = AdcResult.ADCRESULT11;
adcVal[12] = AdcResult.ADCRESULT12;
?
EALLOW;
/*清除ADCINTFLG寄存器中各自的標(biāo)志位*/
AdcRegs.ADCINTFLGCLR.bit.ADCINT3 = 0x1;
/* 清除ADCINTOVF寄存器中相應(yīng)的溢出位*/
AdcRegs.ADCINTOVFCLR.bit.ADCINT3 = 0x1;
/* 中斷應(yīng)答*/
PieCtrlRegs.PIEACK.all = PIEACK_GROUP10;
EDIS;}

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