四位显示的频率计，带proteus仿真

四位显示的频率计，带proteus仿真

单片机源程序如下:

1. #include <reg52.h>
   
2. unsigned char code dispbit[]={0xef,0xdf,0xbf,0x7f};
   
3. unsigned char code dispcode[]={0xc0,0Xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
   
4. unsigned char dispbuf[4]={0,0,0,0};
   
5. unsigned char temp[8];
   
6. unsigned char dispcount;
   
7. unsigned char T0count;
   
8. unsigned char timecount;
   
9. bit flag;
   
10. unsigned long x;
    
11. void main(void)
    
12. {
    
13. unsigned char i;
    
14. TMOD=0x15;
    
15. TH0=0;
    
16. TL0=0;
    
17. TH1=(65536-4000)/256;
    
18. TL1=(65536-4000)%256;
    
19. TR1=1;
    
20. TR0=1;
    
21. ET0=1;
    
22. ET1=1;
    
23. EA=1;
    
24. while(1)
    
25. {
    
26. if(flag==1)
    
27. {
    
28. flag=0;
    
29. x=T0count*65536+TH0*256+TL0;
    
30. for(i=0;i<4;i++)
    
31. {
    
32. temp[i]=0;
    
33. }
    
34. i=0;
    
35. while(x/10)
    
36. {
    
37. temp[i]=x%10;
    
38. x=x/10;
    
39. i++;
    
40. }
    
41. temp[i]=x;
    
42. for(i=0;i<4;i++)
    
43. {
    
44. dispbuf[i]=temp[i];
    
45. }
    
46. timecount=0;
    
47. T0count=0;
    
48. TH0=0;
    
49. TL0=0;
    
50. TR0=1;
    
51. }
    
52. }
    
53. }
    
54. void t0(void) interrupt 1 using 0
    
55. {
    
56. T0count++;
    
57. }
    
58. void t1(void) interrupt 3 using 0
    
59. {
    
60. TH1=(65536-4000)/256;
    
61. TL1=(65536-4000)%256;
    
62. timecount++;
    
63. if(timecount==250)
    
64. {
    
65. TR0=0;
    
66. timecount=0;
    
67. flag=1;
    
68. }
    
69. P0=dispcode[dispbuf[dispcount]];
    
70. P2=dispbit[dispcount];
    
71. dispcount++;
    
72. if(dispcount==4)
    
73. {
    
74. dispcount=0;
    
75. }
    
76. }
    

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046、四位频率计.zip (101.26 KB, 下载次数: 24)

2018-11-7 22:14 上传

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你的仿真数码管都不亮，真的是牛皮，骗人的帖子活该你沉了