51单片机课程设计多点电压巡检系统（源码+仿真）.rar

#include "reg52.h" #define TIME0H 0x3C #define TIME0L 0xB0 #define vdInitialize() vWriteCMD(0x01);vWriteCMD(0x38);vWriteCMD(0x0C); #define OUTPORT P2 #define LCDPORT P0 #define TIME0H 0x3C #define TIME0L 0xB0 unsigned char uc_Clock=0; unsigned char keyvalue=0; bit b_DATransform=0; sbit LCDRS =P3^0; sbit LCDRW =P3^1; sbit LCDE =P3^2; sbit START =P3^4; sbit EOC =P3^3; void vDelay() { unsigned int uiCount; for(uiCount=0;uiCount<250;uiCount++); } void vWriteCMD(unsigned char ucCommand) { vDelay(); LCDE=1; LCDRS=0; LCDRW=0; LCDPORT=ucCommand; LCDE=0; } void vWriteData(unsigned char ucData) { vDelay(); LCDE=1; LCDRS=1; LCDRW=0; LCDPORT=ucData; LCDE=0; } void vShowOneChar(unsigned char ucChar) { vWriteData(ucChar); } void vShowChar(unsigned char ucaChar[]) { unsigned char ucCount; for(ucCount=0;;ucCount++) { vShowOneChar(ucaChar[ucCount]); if(ucaChar[ucCount+1]=='\0') break; } } unsigned int uiADTransform() { unsigned int uiResult; START=1; START=0; while(EOC==0); uiResult=OUTPORT; uiResult=(100*uiResult)/51; return uiResult; } void vShowData(unsigned int uiNumber) { unsigned char ucaNumber[3],ucCount; ucaNumber[0]=uiNumber/100; ucaNumber[1]=(uiNumber-100*(int)ucaNumber[0])/10; ucaNumber[2]=uiNumber-100*(int)ucaNumber[0]-10*ucaNumber[1]; for(ucCount=0;ucCount<3;ucCount++) { vShowOneChar(ucaNumber[ucCount]+48); if(ucCount==0) vShowOneChar('.'); } } void main() { unsigned char i; TMOD=0x01; TH0=TIME0H; TL0=TIME0L; TR0=1; ET0=1; EA=1; vdInitialize(); vWriteCMD(0x84); vShowChar("CHANNEL:"); vWriteCMD(0xC9); vShowChar("(V)"); while(1) { for(i=0;i<8;) { P1=i; if(b_DATransform==1) { vWriteCMD(0x8c); vShowOneChar(i+1+0x30); i++; b_DATransform=0; vWriteCMD(0xC4); vShowData(uiADTransform()); } } } } void Time0() interrupt 1 { if(uc_Clock==0) { uc_Clock=20; b_DATransform=1; } else uc_Clock--; TH0=TIME0H; TL0=TIME0L; }