16位AD的51单片机程序.zip

#include <reg51.h> #include <stdio.h> #include <absacc.h> #include <intrins.h> #define uchar unsigned char #define uint unsigned int sbit load=P1^7; unsigned char code tab1[]={'K','M','H','z','V',' '}; unsigned char code tab2[]={'E','R','R','E','R',' '}; unsigned char code tab3[]={'P','L','L',' '}; unsigned char code numb[]={'0','1','2','3','4','5','6','7','8','9','.','-',' '}; uchar num[5]; uchar a,b; /*与lcd有关的口*/ sbit RS=P3^7; sbit WR1=P3^6; sbit E=P3^5; sbit RDat=P3^4; sbit TD=P3^3; /*与AD有关的口*/ sbit CS=P1^0; sbit EOC=P1^1; sbit DIN=P1^2; sbit SCLK=P1^3; sbit DOUT=P1^4; uint ADC(void) {uchar a,b,i,n; uchar dat=0x01; uint c; CS=0; for(i=0;i<8;i++) {SCLK=0; DIN=dat&0x80; SCLK=1; SCLK=0; dat=dat<<1; } _nop_(); n=0; while(n<16) { if(n<8) for(i=8;i>=1;i--) {SCLK=0; a=a&DOUT; SCLK=1; SCLK=0; a=a<<1; //真高,这样也行 } else for(i=8;i>=1;i--) {SCLK=0; a=a&DOUT; SCLK=1; SCLK=0; a=a<<1; } n=n+8; } CS=1; c=a*256+b; return(c); } /*串行键盘程序*/ /*void skey(void) { load=1; load=0; load=1; SCON=0x10; while(!RI); RI=0; a=SBUF; while(RI); b=SBUF; RI=0; } */ /*共阴代码*/ //unsigned char code numb0[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; /*虚拟同步串行通信*/ void corr(uchar dat) //164使用共阴代码 {uchar ADS,i; ADS=dat; for(i=8;i>0;i--) { TD=0; RDat=ADS&0x80; //此处有误，已改 TD=1; ADS=ADS<<1; } } /**************************************************/ /*延时程序*/ void delay(uchar j) { uchar n; for(j;j>0;j--) {for(n=248;n>0;n--){} //delay500us } } /*查忙标志*/ /* void f_buzy(void) { unsigned char j; RS=0; WR=1; j=P0; while((j&0x80)==0x80) ; WR=0; }*/ /*指令发送*/ void lcd_com(unsigned char a) { E=1; RS=0; WR1=0; corr(a); /*f_buzy(); */ delay(1); E=0; } /*数据发送*/ void lcd_dat(unsigned char b) { E=1; RS=1; WR1=0; corr(b); /*f_buzy(); */ delay(1); E=0; } /*********************数字分离**********************************/ void separate(uint Data) {num[4]=Data%10; num[3]=Data/10%10; num[2]=Data/100%10; num[1]=Data/1000%10; num[0]=Data/10000; } main() { uchar i; uint value; delay(20); lcd_com(0x0f); //显示开关控制，开显示，开光标，闪烁� lcd_com(0x38); //8位数据总线，两行显示，5X7点阵 while(1) { lcd_com(0x01); //清屏 delay(2); //skey(); lcd_com(0x06); //AC自动加1，显示不动 // lcd_com(0x0c); // lcd_com(0x81); //第一行 if(!EOC) value=ADC(); separate(value); for(i=0;i<5;i++) lcd_dat(numb[num[i]]); separate(b); lcd_dat(numb[num[i]]); delay(255); } }