电机转速计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 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','.','-',' '}; unsigned char num[5]; //此不能为code形 uint c=0; sbit p35=P3^5; bit flag=1; //显示标志位 /*与lcd有关的口*/ sbit RS=P2^7; sbit WR1=P2^6; //这里不能定义WR！！！！！ sbit E=P2^5; sbit RDat=P2^4; sbit TD=P2^3; /*sbit RS=P3^7; sbit WR=P3^6; sbit E=P3^5; sbit RDat=P3^4; sbit TD=P3^3; /*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--) { RDat=ADS&0x80; TD=0; //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; } /*********************************/ void lcd_init(void) { delay(20); lcd_com(0x0c); //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 lcd_com(0x01); //清屏 delay(20); lcd_com(0x06); //AC自动加1，显示不动 } /*********************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; } /***************/ void t1() interrupt 3 using 2 {uchar a,b,i,k; a=TH0; b=TL0; TH0=0x00; TL0=0x00; TH1=(65535-50000)/256; TL1=(65535-50000)%256; k=a*256+b; // c=c+k; i++; if(i==20) {i=0; c=0; } flag=1; TR0=1; TR1=1; } /***************/ void init(void) {TH0=0x00; TL0=0x00; TH1=(65535-50000)/256; TL1=(65535-50000)%256; TR0=1; TR1=1; EA=1; ET1=1; } main() { uchar i; TMOD=0x15; lcd_init(); init(); 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 //lcd_com(0x01); //清屏 //delay(2); //lcd_com(0x06); //AC自动加1，显示不动 // lcd_com(0x0c); // flag=0; p35=0; while(1) {//c=0x84; separate(c); delay(200); delay(200); if(flag) {flag=0; //separate(c); lcd_com(0x81); //第一行 for(i=0;i<5;i++) lcd_dat(numb[num[i]]); // // lcd_com(0xc1); //第二行 } } }