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<P class=postText>void Interrupts_Init()<BR>{<BR> EIE2 = 0x02; //允许ADC0中断 <BR>}</P>
<P class=postText>void Init_Device(void)<BR>{<BR> Timer_Init();<BR> UART_Init();<BR> ADC_Init();<BR> Voltage_Reference_Init(); //初始化主程序<BR> Port_IO_Init();<BR> Oscillator_Init();<BR> Interrupts_Init();<BR>}<BR>//end init//</P>
<P class=postText>/****************************************************************************</P>
<P class=postText> 主函数定义开始</P>
<P class=postText>*****************************************************************************/</P>
<P class=postText>void main(void)<BR>{<BR> WDTCN=0xde;<BR> WDTCN=0xad; //关看门狗<BR> Init_Device();<BR> lcd_init();<BR> AD0EN=1;<BR> delay_ms(5);<BR> EA=1;<BR> TI0=1;<BR> while(1)<BR> {<BR> if(m==1)<BR> {<BR> <BR> m=0;<BR> TMR3CN&=0xFB; //关定时器3<BR> Sjcl(); //处理数据<BR> TMR3CN|=0X04; //开定时器3<BR> }<BR> }<BR>}<BR>/****************************************************************************<BR> <BR> ADC0中断处理 </P>
<P class=postText>****************************************************************************/</P>
<P class=postText>void ADC0_ISR(void) interrupt 15 <BR>{<BR> ADC0CN&=0xdf; <BR> if(ADC0_data_n%2==0)<BR> {<BR> ADC0_data1[ADC0_data_n1] = ADC0;<BR> ADC0_data_n1++;<BR> AMX0SL = 0x01;<BR> }</P>
<P class=postText> else<BR> {<BR> ADC0_data2[ADC0_data_n2]=ADC0;<BR> ADC0_data_n2++;<BR> AMX0SL=0x00;<BR> }</P>
<P class=postText> ADC0_data_n++;<BR> if(ADC0_data_n==1600)//两路采集完800点<BR> { <BR> m=1;<BR> }<BR>}</P>
<P class=postText>/****************************************************************************<BR> <BR> 数据采集完处理函数</P>
<P class=postText>****************************************************************************/</P>
<P class=postText>void Sjcl(void)<BR>{ <BR> /*unsigned int j;*/<BR> /*unsigned char xdata lcd_senddata[4];//四位LCD显示数据*/<BR> unsigned int i;<BR> unsigned long data ADC0_dataadd=0;//采集完毕的累加计算值<BR> unsigned long data a=0;<BR> unsigned long data b=0;<BR> float data c;<BR> float data d;<BR> float data P_dataadd=0;<BR> float data U=0;<BR> float data I=0; <BR> float data S=0;<BR> float data P=0;<BR> float data Q=0;<BR> float data COSg=0;<BR> //通道一数据处理 <BR> for(i=0;i<=ADC0_data_n1;i++)<BR> {<BR> a=ADC0_data1[i];<BR> ADC0_dataadd=ADC0_dataadd+a*a;</P>
<P class=postText> }</P>
<P class=postText> U=ADC0_dataadd/ADC0_data_n1;//取平均值 <BR> U=sqrt(U);//取平方根值<BR> U=(U*2.451)/0x0fff;//计算实际电压值<BR> <BR> //通道二数据处理<BR> ADC0_dataadd=0;<BR> for(i=0;i<=ADC0_data_n2;i++)<BR> {<BR> a=ADC0_data2[i];<BR> ADC0_dataadd=ADC0_dataadd+a*a;</P>
<DIV class=postText> }<BR> I=ADC0_dataadd/ADC0_data_n2;//取平均值 <BR> I=sqrt(I);//取平方根值<BR> I=(I*2.451)/0x0fff;//计算实际电压2值<BR> S=U*I;<BR> for(i=0;i<=ADC0_data_n1;i++) //计算P值<BR> {<BR> c=((float)ADC0_data1[i]*2.451)/0x0fff;<BR> d=((float)ADC0_data1[i]*2.451)/0x0fff;<BR> P_dataadd=P_dataadd+c*d;<BR> }<BR> P=P_dataadd/ADC0_data_n1;//取平均值 <BR> Q=sqrt(S*S-P*P);//计算Q值<BR> COSg=P/S;//计算cosg值<BR> printf("************************************\n");<BR> delay_ms(10);<BR> printf("U=%.3fv I=%.3fv\n",U,I); <BR> delay_ms(10);<BR> printf("S=%.3fw P=%.3fw Q=%.3fw\n",S,P,Q);<BR> delay_ms(10);<BR> printf("COSg=%.3f\n",COSg); <BR> delay_ms(10);<BR> ADC0_data_n=0;<BR> ADC0_data_n1=0;<BR> ADC0_data_n2=0;<BR>}</DIV>
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