モノリシックマシンテスト

 1 #include "reg52.h"

 2 #include "intrins.h"

 3 #define uchar unsigned char

 4 #define uint unsigned int

 5 

 6 void delay( uchar x)  

 7 {

 8     uint y;

 9     for (; x > 0 ; x--  )

10         for( y=500 ;y>0;y--);

11 

12 

13 }

14 

15 uchar a;// 

16 

17 void main()

18 {    

19     uchar b=0x7f;

20     uchar bb = 0xcf;

21     uchar bbb = 0xef;

22     TMOD=0x20;// 1 2，8   

23     TH1=0xFd; //11.0592M ，9600 　

24     TL1=0xFd;

25     SCON=0x50;// 1 SM0 SM1 01　   

26     PCON=0x00;//SMOD=0 16  

27     TR1=1;// 1

28     ES=1;//    

29     EA=1;//   

30     while(1)

31     {

32         if(a== 'A')

33         {

34             delay(1000); 

35             P1=b;

36         }

37         else if(a== 'B')

38         {

39             delay(1000); 

40             P1 = bb;

41         }    

42         else

43             P1 = bbb;

44     }

45 

46 }

47 

48 void serial() interrupt 4 // 

49 {

50     RI=0;

51     a = SBUF;

52 }