| #include<reg52.h> |
| #define uint unsigned int |
| #define uchar unsigned char |
| sbit MA=P2^0; |
| sbit MB=P2^1; |
| sbit MC=P2^2; |
| sbit MD=P2^3; |
| sbit K1=P1^0; |
| sbit K2=P1^1; |
| sbit K3=P1^2 |
| sbit K4=P1^3; |
| sbit K5=P1^4; |
| sbit LED1=P0^0; |
| sbit LED2=P0^1; |
| uchar zf,step,time,speed=10; |
| void delay(uchar a) |
| { |
| uchar x,y; |
| for(x=a;x>0;x--) |
| for(y=120;y>0;y--); |
| } |
| void dianjinyunxing(uchar sp) |
| { |
| switch(sp) |
| { |
| case 0: |
| MA=1;MB=0;MC=0;MD=0;break; |
| case 1: |
| MA=1;MB=1;MC=0;MD=0;break; |
| case 2: |
| MA=0;MB=1;MC=0;MD=0;break; |
| case 3: |
| MA=0;MB=1;MC=1;MD=0;break; |
| case 4: |
| MA=0;MB=0;MC=1;MD=0;break; |
| case 5: |
| MA=0;MB=0;MC=1;MD=1;break; |
| case 6: |
| MA=0;MB=0;MC=0;MD=1;break; |
| case 7: |
| MA=1;MB=0;MC=0;MD=1;break; |
| } |
| } |
| void time0_init() |
| { |
| TMOD=0x01; |
| TH0=(65536-10000)/256; |
| TL0=(65536-10000)%256; |
| ET0=1; |
| EA=1; |
| TR0=0; |
| } |
| void jianpan() |
| { |
| if(K1==0) |
| { |
| delay(10); |
| if(K1==0) |
| { |
| while(!K1); |
| TR0=0; |
| LED1=1; |
| LED2=1; |
| } |
| } |
| if(K2==0) |
| { |
| delay(10); |
| if(K2==0) |
| { |
| while(!K2); |
| speed=10; |
| zf=0; |
| TR0=1; |
| LED1=0; |
| LED2=1; |
| } |
| } |
| if(K3==0) |
| { |
| delay(10); |
| if(K3==0) |
| { |
| while(!K3); |
| speed=10; |
| zf=1; |
| TR0=1; |
| LED1=1; |
| LED2=0; |
| } |
| } |
| if(K4==0) |
| { |
| delay(10); |
| if(K4==0) |
| { |
| while(!K4); |
| speed--; |
| if(speed<=5) |
| speed=5; |
| } |
| } |
| if(K5==0) |
| { |
| delay(10); |
| if(K5==0) |
| { |
| while(!K5); |
| speed++; |
| if(speed>=15) |
| speed=15; |
| } |
| } |
| } |
| void main() |
| { |
| time0_init(); |
| while(1); |
| } |
| void time0() interrupt 1 |
| { |
| TH0=(65536-10000)/256; |
| TL0=(65536-10000)%256; |
| time++; |
| if(time==speed) |
| { |
| if(zf==0) |
| { |
| step--; |
| if(step==-1) |
| step=7; |
| } |
| if(zf==1) |
| { |
| step++; |
| if(step==8) |
| step=0; |
| } |
| dianjinyunxing(step); |
| time=0; |
| } |
| } |
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