pinlvji.rar_frequency meter_frequency proteus_频率计_频率计 proteus_频率

#include<at89x51.h> //接口定义 sbit RS=P2^0; sbit RW=P2^1; sbit E=P2^2; unsigned int a; unsigned long i; unsigned char g,f,c,d,e,h,j,m,k; unsigned char h1,h2,h3,h4,h5,h6,h7; unsigned char code String0[]="F: Hz"; unsigned char code String1[]="T: . us"; //判断忙指令 void Busy() { RS=0; RW=1; do { P1=0xff; E=0; E=1; P1&=0x80; } while(P1!=0); } //写指令程序 void Write_com( unsigned char com) { Busy(); RS=0; RW=0; E=1; P1=com; E=0; } //写数据程序 void Write_dat(unsigned char dat) { Busy(); RS=1; RW=0; E=1; P1=dat; E=0; } //清屏显示 void Clear() { Write_com(1); } //初始化 void Init() { Write_com(0x0c);//开显示,无光标显示 Write_com(0x06);//文字不动，光标自动右移 Write_com(0x38);//设置显示模式:8位2行5x7点阵 } //显示一个字符子程序Dat表示显示字符的代码,a=0表示显示在第一行，a=1表示显示在第二行，i表示显示的位置i=0-15 void Display_One(bit a,unsigned char i,unsigned char Dat) { if(a) Write_com(0xc0+i); else Write_com(0x80+i); Write_dat(Dat+0x30); } //显示字符串子程序,a=0表示显示在第一行，a=1表示显示在第二行，i表示显示的起始位置i=0-15,j表示字符串的长度j=1-16, //m=0表示选择字符串String0[],m=1表示选择字符串String1[]. void Display_String(bit a,unsigned char i,unsigned char j,bit m) { unsigned char k=0; for(j;j>0;j--) { if(a) Write_com(0xc0+i); else Write_com(0x80+i); if(m) Write_dat(String1[k]); else Write_dat(String0[k]); k++; i++; } } //数据处理子程序 void Data_Processing() { if(P0_0==1)i+=16; if(P0_1==1)i+=32; if(P0_2==1)i+=64; if(P0_3==1)i+=128; if(P0_4==1)i+=256; if(P0_5==1)i+=512; if(P0_6==1)i+=1024; if(P0_7==1)i+=2048; if(P2_3==1)i+=4096; if(P2_4==1)i+=8192; if(P2_5==1)i+=16384; if(P2_6==1)i+=32768; if(P3_1==1)i+=65536; if(P3_2==1)i+=131072; if(P3_3==1)i+=262144; if(P3_4==1)i+=524288; if(P3_5==1)i+=1048576; if(P3_6==1)i+=2097152; if(P3_7==1)i+=4194304; g=i/1000000; f=i%1000000/100000; c=i%100000/10000; d=i%10000/1000; e=i%1000/100; h=i%100/10; m=i%10; //消除无用的0 if(g==0) { g=0x70; if(f==0) { f=0x70; if(c==0) { c=0x70; if(d==0) { d=0x70; if(e==0) { e=0x70; if(h==0) { h=0x70; } } } } } } if(i<16)h1=h2=h3=h4=h5=h6=0x70; else { j=1000000%i*10/i; k=1000000%i*10%i*10/i; i=1000000/i; h1=i/1000000; h2=i%1000000/100000; h3=i%100000/10000; h4=i%10000/1000; h5=i%1000/100; h6=i%100/10; h7=i%10; } //消除无用的0 if(h1==0) { h1=0x70; if(h2==0) { h2=0x70; if(h3==0) { h3=0x70; if(h4==0) { h4=0x70; if(h5==0) { h5=0x70; if(h6==0) { h6=0x70; } } } } } } } void main() { Clear(); Init(); TMOD=0x20; TL1=TH1=6; TR1=ET1=1; while(P3_0==1); EA=1; P2_7=0; while(EA==1); Data_Processing(); Display_String(1,0,16,1); Display_String(0,0,16,0); Display_One(0,7,g); Display_One(0,8,f); Display_One(0,9,c); Display_One(0,10,d); Display_One(0,11,e); Display_One(0,12,h); Display_One(0,13,m); Display_One(1,4,h1); Display_One(1,5,h2); Display_One(1,6,h3); Display_One(1,7,h4); Display_One(1,8,h5); Display_One(1,9,h6); Display_One(1,10,h7); Display_One(1,12,j); Display_One(1,13,k); while(1); } void t1() interrupt 3 using 0 { a++; if(a==4000) { EA=0; P2_7=1; } }