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#include \ #include \ #include \
#include \#include \
int ConversionCount,f; int Voltage[1024],Vmax,Vmin,Vavr; //µçѹת»»½á¹û´æ´¢Êý×é¼°Ò»¸öÖÜÆÚÄڵIJÉÑùÖµÊý×é float RMS=0,U0[1024],SV[]; //µçѹÓÐЧֵ interrupt void adc_isr(void);
main() { InitSysCtrl(); //³õʼ»¯Ê±ÖÓ£¬CPUΪ15M,¸ßËÙʱÖÓHspclkΪ1.5M DINT; //¹Ø±ÕÖжÏ
InitPieCtrl(); //³õʼ»¯Pie¼Ä´æÆ÷
IER=0x0000; //½ûÖ¹ËùÓпÉÆÁ±ÎÖÐ¶Ï IFR=0x0000;
InitPieVectTable(); //³õʼ»¯PieÖжÏÏòÁ¿±í
EALLOW; //´ò¿ª¼Ä´æÆ÷д±£»¤
PieVectTable.ADCINT=&adc_isr; //½«AdcÖжÏ×Ó³ÌÐòµÄ·þÎñµØַдÈëÖжÏÏòÁ¿±í EDIS; //½ûÖ¹¼Ä´æÆ÷µÄ·ÃÎÊ
InitAdc(); //³õʼ»¯Adc£¬Íê³ÉAdcµÄÉϵç InitLcd(); //Òº¾§³õʼ»¯ /*ÔÚPieÖÐʹÄÜAdcµÄÖжÏADCINT*/
PieCtrlRegs.PIEIER1.bit.INTx6=1; //²é±íÖªADCINT¶ÔÓ¦µÄÊÇINT1,INTx.6 IER=M_INT1; //ʹÄÜCPUÖÐ¶Ï EINT; //ʹÄÜÈ«¾ÖÖÐ¶Ï /*ÅäÖÃAdcÄ£¿é*/
AdcRegs.ADCMAXCONV.all=0x0000; //ÉèÖÃSEQ1µÄ×î´óת»»Í¨µÀÊýΪ1 AdcRegs.ADCCHSELSEQ1.bit.CONV00=0x0; //Ñ¡Ôñ0ͨµÀ
AdcRegs.ADCTRL2.bit.EVA_SOC_SEQ1=1; //Ñ¡ÔñEVA×÷ΪSEQ1µÄ´¥·¢Æô¶¯ÐźŠAdcRegs.ADCTRL2.bit.INT_ENA_SEQ1=1; //ʹÄÜSEQ1µÄÖжϲÙ×÷£¨ÖжϷ½Ê½0£©
/*ÅäÖÃEVA*/
EvaRegs.T1CNT=0x0000; //¼ÆÊý³õÖµ
EvaRegs.T1PR=0x007D; //ÉèÖÃÖÜÆڼĴæÆ÷ֵΪ125£¬ÒòΪÏÂÃæÉèµÄÊÇÔö¼õ¼ÆÊýģʽ£¬EVAµÄÏÂÒçÆô¶¯Adc£¬ËùÒÔ²ÉÑùÖÜÆÚÊÇ250¸ö¼ÆÊýÖÜÆÚ
EvaRegs.GPTCONA.bit.T1TOADC=0x1; //ÉèÖÃEVAµÄÏÂÒçÆô¶¯Adc EvaRegs.T1CON.all=0x0842; //ÉèÖÃT1ΪÁ¬ÐøÔö¼õ¼ÆÊýģʽ£¬²»·ÖƵ£¬¼´Ê±ÖÓΪ¸ßËÙʱÖÓHspclk£º1.5M £¬
}
ConversionCount=0;
while(1) //µÈ´ýÖÐ¶Ï { ; }
interrupt void adc_isr(void) {
if(Vmin>Voltage[i]) Vmin=Voltage[i]; //Çó³ö×îСֵ
int i=0,j=0,flag=0; //flag×÷ΪÓöµ½ÁãµãµÄ±êÖ¾ Voltage[ConversionCount]=AdcRegs.ADCRESULT0>>4;
U0[ConversionCount]=3.0*Voltage[ConversionCount]/4095;
if(ConversionCount==1023) //Èç¹û²ÉÑùµãÊý´ïµ½ÁË1024 {
PieCtrlRegs.PIEIER1.bit.INTx6=0; //½ûÖ¹ÖжÏÇëÇó ConversionCount=0;
/*Çó³ö1024¸öµãÖеÄ×î´ó×îСֵºÍÖмäÖµ*/
Vmax=Voltage[0]; Vmin=Voltage[0];
for(i=0;i<1024;i++) { if(Vmax } Vavr=(Vmax-Vmin)/2; //Çó³öÖмäÖµ { if(flag==1) SV[j]=U0[i]; //U0[i]¾ÍÊǶÔÓ¦µÄVoltage[i]µÄÄ£ÄâÖµ RMS+=SV[j]*SV[j]; for(i=1;i<1024;i++) { if((Voltage[i-1]<=Vavr)&&(Voltage[i]>=Vavr)) { } flag++; } } { } j++; if(flag==2) i=1024; flag=0; RMS=sqrt(RMS/j); rg=(int)RMS; r1=((int)(RMS*10)); r2=((int)(RMS*100)); f=(1500000/250)/j; fb=f/100; fs=(f-fb*100)/10; fg=f-fb*100-fs*10; lcd_write_dy(); lcd_write_pl(); PieCtrlRegs.PIEIER1.bit.INTx6=1; //ʹÄÜÖжÏÇëÇó } } else ConversionCount++; /*¸´Î»SEQ1£¬µÈ´ý´¥·¢ÐźÅÖØÆôÏ´Îת»»*/ AdcRegs.ADCTRL2.bit.RST_SEQ1=1; //¸´Î»SEQ1 AdcRegs.ADCST.bit.INT_SEQ1_CLR=1; //Çå³ýSEQ1µÄÖжϱê־λ PieCtrlRegs.PIEACK.all=PIEACK_GROUP1; //ʹÄÜAdcÄ£¿éµÄÏ´ÎÖжÏÇëÇó return;