标题: URAT 通信源程序 [打印本页]

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作者: liuqq    时间: 2015-5-20 18:07
标题: URAT 通信源程序

1. #include <reg51.h>
   
2. #define uchar unsigned char
   
3. #define uint unsigned int
   
4. uchar flag,a ,i;
   
5. uchar table[]="i get";
   
6. void uartinit()
   
7. {
   
8. TMOD = 0x20;
   
9. TH1 = 0XFD;
   
10. TL1 = 0XFD;
    
11. TR1 = 1;
    
12. REN = 1;
    
13. SM0 = 0;
    
14. SM1 = 1;
    
15. EA = 1;
    
16. ES = 1;
    
17. }
    
18. void main()
    
19. {
    
20. uartinit();
    
21. while(1)          
    
22. {
    
23. if(flag == 1)
    
24. {
    
25. ES = 0;
    
26. for(i=0;i<6;i++)
    
27. {
    
28. SBUF = table[i];
    
29. while(!TI);
    
30. TI = 0;
    
31. }
    
32.    SBUF = a;
    
33. while(!TI);
    
34. TI = 0;
    
35. ES = 1;
    
36.    flag = 0;
    
37. }
    
38. }
    
39. }
    
40. void uart() interrupt 4
    
41. {
    
42. RI = 0;
    
43. a = SBUF;
    
44. P0 = a;
    
45. flag = 1;
    
46. 
    
47. }

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