标题: 单片机控制8个LED模拟彩灯闪烁实验 [打印本页]

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作者: liuda    时间: 2015-1-21 22:46
标题: 单片机控制8个LED模拟彩灯闪烁实验

1. #include<reg52.h>
   
2. typedef unsigned char U8_BYTE;
   
3. typedef unsigned int U16_WORD;
   
4. void delay(U16_WORD k);
   
5. //=================
   
6. void main(void)
   
7. {
   
8. U8_BYTE val;
   
9. while(1)
   
10. {
    
11. val=0x55;
    
12. P1=val;
    
13. delay(500);
    
14.   val=0xaa;
    
15. P1=val;
    
16. delay(500);
    
17. }
    
18. }
    
19. //===============
    
20. void delay(U16_WORD k)
    
21. {
    
22. U16_WORD i,j;
    
23. for(i=0;i<k;i++){
    
24. for(j=0;j<121;j++)
    
25. {;}}
    
26. }

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