- #include<reg52.h>
- #define uint unsigned int
- #define uchar unsigned char
- uchar temp,aa,num;
- sbit dula=P2^6;
- sbit wela=P2^7;
- sbit led1=P1^0;
- uchar code table[]={
- 0x3f,0x06,0x5b,0x4f,
- 0x66,0x6d,0x7d,0x07,
- 0x7f,0x6f,0x77,0x7c,
- 0x39,0x5e,0x79,0x71};
- void delayms(uint );
- void display(uchar,uchar);
- uchar num,num1,num2,shi,ge;
- void main()
- {
- TMOD=0x01;
- TH0=(65536-45872)/256;
- TL0=(65536-45872)%256;
- TH1=(65536-45872)/256;
- TL1=(65536-45872)%256;
- EA=1;
- ET0=1;
- ET1=1;
- TR0=1;
- TR1=1;
- while(1)
- {
- display(shi,ge);
- }
- }
- void display(uchar shi,uchar ge)
- {
- dula=1;
- P0=table[shi];
- dula=0;
- P0=0xff;
- wela=1;
- P0=0Xfe;
- wela=0;
- delayms(5);
- dula=1;
- P0=table[ge];
- dula=0;
- P0=0xff;
- wela=1;
- P0=0xfd;
- wela=0;
- delayms(5);
- }
- void delayms(uint xms)
- {
- uint i,j;
- for(i=xms;i>0;i--)
- for(j=110;j>0;j--);
- }
- void T0_time()interrupt 1
- {
- TH0=(65536-45872)/256;
- TL0=(65536-45872)%256;
- num1++;
- if(num1==20)
- {
- num1=0;
- led1=~led1;
- }
- }
- void T1_time() interrupt 3
- {
- TH1=(65536-45872)/256;
- TL1=(65536-45872)%256;
- num2++;
- if(num2==160)
- {
- num2=0;
- num++;
- if(num==60)
- num=0;
- shi=num/10;
- ge=num%10;
- }
- }
|
