PMT.rar_icl7109_pmt_数据采集

#include<stdio.h> #include<reg51.h> #include<math.h> sbit OR=P0^4; sbit xiaoshu=P1^7; sbit K1=P2^0; sbit K2=P2^1; sbit K3=P2^2; sbit LBEN=P2^3; sbit HBEN=P2^4; sbit RUN=P2^5; sbit GRE=P2^6; sbit RED=P2^7; sbit S1=P3^5; sbit S2=P3^4; unsigned char idata times; float idata dl; unsigned char shuxian[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; unsigned int yima(unsigned char m) {int z; z=shuxian[m]; return(z); } void deng(unsigned char x) {unsigned char i; i=1; while (i<x)i++; } void dianliu1(float pp) /*电流在nA档，小数点不显示*/ {unsigned char a,b,c,d; unsigned int tt; pp=pp*10; tt=(unsigned int)pp; a=tt/1000; b=tt/100%10; c=tt/10%10; d=tt%10; S1=0;S2=0; if(a==0) {P1=0x00;} else if(a>0){P1=yima(a);deng(200);} S1=1;S2=0; P1=yima(b);deng(120); S1=0;S2=1; P1=yima(c);deng(120); S1=1;S2=1; P1=yima(d);deng(50); } void dianliu2(float pp) /*电流在nA档，小数点不显示*/ {unsigned char a,b,c,d; unsigned int tt; if (pp<0.01) {pp=0;} pp=pp*1000; tt=(unsigned int)pp; a=tt/1000; b=tt/100%10; c=tt/10%10; d=tt%10; S1=0;S2=0; if(a==0) {P1=0x00;} else if(a>0){P1=yima(a);deng(200);} S1=1;S2=0;P1=yima(b);deng(200); S1=0;S2=1; P1=yima(c); deng(200); S1=1;S2=1; P1=yima(d);deng(50); } void dianliu3(float pp) {unsigned char a,b,c,d; unsigned int tt; pp=pp*100; tt=(unsigned int)pp; a=tt/1000; b=tt/100%10; c=tt/10%10; d=tt%10; S1=0;S2=0; if(a==0) {P1=0x00;} else if(a>0){P1=yima(a);deng(200);} S1=1;S2=0; P1=yima(b); deng(200); S1=0;S2=1; P1=yima(c); deng(200); S1=1;S2=1; P1=yima(d);deng(50); } void dianliu4(float pp) {unsigned char a,b,c,d; unsigned int tt; pp=pp*10; tt=(unsigned int)pp; a=tt/1000; b=tt/100%10; c=tt/10%10; d=tt%10; S1=0;S2=0; if(a==0) {P1=0x00;} else if(a>0){P1=yima(a);deng(200);} S1=1;S2=0; if(a==0&&b==0) {P1=0x00;} else if(b>0){P1=yima(b);deng(200);} S1=0;S2=1; P1=yima(c);xiaoshu=1; deng(200); S1=1;S2=1; P1=yima(d);deng(50); } void dianliu5(float pp) {unsigned char a,b,c,d; unsigned int tt; pp=pp*100; tt=(unsigned int)pp; a=tt/1000; b=tt/100%10; c=tt/10%10; d=tt%10; S1=0;S2=0; if(a==0) {P1=0x00;} else if(a>0){P1=yima(a);deng(200);} S1=1;S2=0; P1=yima(b);xiaoshu=1;deng(200); S1=0;S2=1; P1=yima(c); deng(200); S1=1;S2=1; P1=yima(d);deng(50); } void dianliu6(float pp) {unsigned char a,b,c,d; unsigned int tt; tt=(unsigned int)pp; a=tt/1000; b=tt/100%10; c=tt/10%10; d=tt%10; S1=0;S2=0; if(a==0) {P1=0x00;} else if(a>0){P1=yima(a);deng(200);} S1=1;S2=0; P1=yima(b);deng(120); S1=0;S2=1; P1=yima(c);deng(120); S1=1;S2=1; P1=yima(d);deng(50); } void baojin() {S1=0;S2=0;P1=0x40;deng(60); S1=1;S2=0;P1=0x79;deng(60); S1=0;S2=1;P1=0x40;deng(2000); } float VIbian(unsigned int voltage,unsigned char ti) {float current; switch(ti) { case 0x00: {current=voltage/4000.0;}break; case 0x01: {current=voltage/400.0;}break; case 0x02: {current=voltage/40.0;}break; case 0x03: {current=voltage/4.0;}break; default:; } if(current<0.001) current=0; return (current); } void DataIn_int0() interrupt 0 { unsigned char m; unsigned int idata ps=0; unsigned int idata pp,qq,ph,pl; P0=0xff; EX0=0; HBEN=0; LBEN=1;ph=P0&0x3f; P0=0xff; HBEN=1; LBEN=0; pl=P0; qq=(((unsigned int)ph&0x000f)<<8)+(unsigned int)pl; if(qq>3800) {RUN=0; switch(times) {case 0x00: {K1=1;K2=0; times=0x01; }break; case 0x01: {K1=0;K3=1; times=0x02; }break; case 0x02: {K1=0;K3=0; times=0x03; }break; } m=0; RUN=1; P0=0xff; HBEN=0; LBEN=1; ph=P0&0x3f; P0=0xff; HBEN=1; LBEN=0; pl=P0; qq=(((unsigned int)ph&0x00ff)<<8)+(unsigned int)pl; } else if(times!=0&&qq<300) {RUN=0; switch(times) {case 0x01: {K1=1;K2=1; times=0x00; }break; case 0x02: {K1=1;K2=0; times=0x01; }break; case 0x03: {K1=0;K3=1; times=0x02; }break; } m=0; RUN=1; P0=0xff; HBEN=0; LBEN=1; ph=P0&0x3f; P0=0xff; HBEN=1; LBEN=0; pl=P0; qq=(((unsigned int)ph&0x000f)<<8)+(unsigned int)pl; } else{ P0=0xff; HBEN=0; LBEN=1; ph=P0&0x3f; P0=0xff; HBEN=1; LBEN=0; pl=P0; ps=(((unsigned int)ph&0x000f)<<8)+(unsigned int)pl; pp=pp+ps; if(m>=0&&m<10) m=m+1; else m=0; if(m==0) { pp=pp/10; dl=VIbian(pp,times);pp=0; } } EX0=1; } main() { unsigned int idata i; EX0=1; IT0=1; ET0=1; K1=1;K2=1;times=0x00; EA=1; RUN=1; for(i=0;i<1625;i++); for(;;) { if(times==0x00) { if(dl>0&&dl<10){dianliu2(dl);RED=1;GRE=0;} else if(dl>=10&&dl<100){dianliu3(dl);RED=1;GRE=0;} else if(dl>=100&&dl<910){dianliu1(dl);RED=1;GRE=0;} else ; } else if(times==0x01){dianliu5(dl);GRE=1;RED=0;} else if(times==0x02){dianliu4(dl);GRE=1;RED=0;} else if(times==0x03){dianliu6(dl);GRE=1;RED=0;} } }