基于51单片机的频率计设计c语言程序.docx

1、基于51单片机的频率计设计c语言程序基于51单片机的频率计设计，c语言程序代码1：#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longsbit dula=P26;sbit wela=P27;sbit key1=P10;sbit key2=P11;sbit key3=P12;uchar tt=0,mode;ulong num,num1;uchar code shu=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0

2、x7c,0x39,0x5e,0x79,0x71;void delay(uint z)uint i,j;for(i=z;i0;i-) for(j=110;j0;j-);void display(uchar a,uchar b,uchar c,uchar d,uchar e,uchar f) dula=1; P0=shua; dula=0; P0=0xff; wela=1; P0=0xfe; wela=0; delay(3); dula=1; P0=shub; dula=0; P0=0xff; wela=1; P0=0xfd; wela=0; delay(3); dula=1; P0=shuc;

3、dula=0; P0=0xff; wela=1; P0=0xfb; wela=0; delay(3); dula=1; P0=shud; dula=0; P0=0xff; wela=1; P0=0xf7; wela=0; delay(3); dula=1; P0=shue; dula=0; P0=0xff; wela=1; P0=0xef; wela=0; delay(3); dula=1; P0=shuf; dula=0; P0=0xff; wela=1; P0=0xdf; wela=0; delay(3);ulong read() uchar t1,th1,th2; uint val; w

4、hile(1) th1=TH1; t1=TL1; th2=TH1; if(th1=th2) break; val=th1*256+t1; return val;void keyscan() if(key1=0) mode=1; TMOD=0X90; TH1=0; TL1=0; ET1=1; TR1=1; EX1=1; EA=1; IT1=1; ET0=0; if(key2=0) mode=2; TMOD=0X51; TH0=(65536-50000)/256; TL0=(65536-50000)%256; TH1=0; TL1=0; ET0=1; ET1=1; TR1=1; TR0=1; EX

5、1=0; EA=1; if(key3=0) mode=3; TMOD=0X51; TH0=(65536-50000)/256; TL0=(65536-50000)%256; TH1=0; TL1=0; ET0=1; ET1=1; TR1=1; TR0=1; EX1=0; EA=1; void main()uint aa,bb,cc,dd,ee,ff; while(1) keyscan(); if(mode = 1) aa=num/100000; bb=num/10000%10; cc=num/1000%10; dd=num/100%10; ee=num/10%10; ff=num%10; di

6、splay(aa,bb,cc,dd,ee,ff); if(mode =2) num=num1*2; aa=num/100000; bb=num/10000%10; cc=num/1000%10; dd=num/100%10; ee=num/10%10; ff=num%10; display(aa,bb,cc,dd,ee,ff); if(mode=3) num=500000/num1; aa=num/100000; bb=num/10000%10; cc=num/1000%10; dd=num/100%10; ee=num/10%10; ff=num%10; display(aa,bb,cc,d

7、d,ee,ff); void T0_time() interrupt 1 TH0=(65536-50000)/256; TL0=(65536-50000)%256; tt+; if(tt=10) tt=0; num1=read(); TH1=0; TL1=0; void exter() interrupt 2 num=read()+1; TH1=0; TL1=0; 代码2：#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longsbit dula=P26;sbit wela=P

8、27;sbit key1=P10;sbit key2=P11;sbit key3=P12;uchar tt=0,mode;ulong num,num1;uchar code shu=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint z)uint i,j;for(i=z;i0;i-) for(j=110;j0;j-);void display(uchar a,uchar b,uchar c,uchar d,uchar e,uchar f) dula=1;

9、P0=shua; dula=0; P0=0xff; wela=1; P0=0xfe; wela=0; delay(3); dula=1; P0=shub; dula=0; P0=0xff; wela=1; P0=0xfd; wela=0; delay(3); dula=1; P0=shuc; dula=0; P0=0xff; wela=1; P0=0xfb; wela=0; delay(3); dula=1; P0=shud; dula=0; P0=0xff; wela=1; P0=0xf7; wela=0; delay(3); dula=1; P0=shue; dula=0; P0=0xff

10、; wela=1; P0=0xef; wela=0; delay(3); dula=1; P0=shuf; dula=0; P0=0xff; wela=1; P0=0xdf; wela=0; delay(3);ulong read() uchar t1,th1,th2; uint val; while(1) th1=TH1; t1=TL1; th2=TH1; if(th1=th2) break; val=th1*256+t1; return val;void keyscan() if(key1=0) mode=1; TMOD=0X90; TH1=0; TL1=0; ET1=1; TR1=1;

11、EX1=1; EA=1; IT1=1; ET0=0; if(key2=0) mode=2; TMOD=0X51; TH0=(65536-50000)/256; TL0=(65536-50000)%256; TH1=0; TL1=0; ET0=1; ET1=1; TR1=1; TR0=1; EX1=0; EA=1; if(key3=0) mode=3; TMOD=0X51; TH0=(65536-50000)/256; TL0=(65536-50000)%256; TH1=0; TL1=0; ET0=1; ET1=1; TR1=1; TR0=1; EX1=0; EA=1; void main()

12、uint aa,bb,cc,dd,ee,ff; while(1) keyscan(); P1=0xff; if(mode = 1) key1=0; aa=num/100000; bb=num/10000%10; cc=num/1000%10; dd=num/100%10; ee=num/10%10; ff=num%10; display(aa,bb,cc,dd,ee,ff); if(mode =2) key2=0; num=num1*2+3; aa=num/100000; bb=num/10000%10; cc=num/1000%10; dd=num/100%10; ee=num/10%10;

13、 ff=num%10; display(aa,bb,cc,dd,ee,ff); if(mode=3) key3=0; num=500000/num1; aa=num/100000; bb=num/10000%10; cc=num/1000%10; dd=num/100%10; ee=num/10%10; ff=num%10; display(aa,bb,cc,dd,ee,ff); void T0_time() interrupt 1 TH0=(65536-50000)/256; TL0=(65536-50000)%256; tt+; if(tt=10) tt=0; num1=read(); TH1=0; TL1=0; void exter() interrupt 2 num=read()+1; TH1=0; TL1=0;