演示int0,t0,int1,t1中断程序

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3. #include <reg52.h>
4. #include <intrins.h>
5. #define uint unsigned int
6. #define uchar unsigned char
7. uchar code table1[12]={0x28,0x7E,0xa2,0x62,0x74,0x61,0x21,0x7A,0x20,0x60,0x00,0xff};
8. uchar code table2[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
9. /**********************************************************
10. 50US 延时子函数
11. **********************************************************/
12. void delay_50us(uint t){
13. uchar j;
14. for(;t>0;t--)
15. for(j=19;j>0;j--);
16. }
17. /**********************************************************
18. 50MS 延时子函数
19. **********************************************************/
20. void delay_50ms(uint t){
21. uint j;
22. for(;t>0;t--)
23. for(j=6245;j>0;j--);
24. }
25. uchar num_0,num_1,num_2,num_3,tmp,i;
26. uchar buf[8]={0x28,0x28,0x28,0x28,0x28,0x28,0x28,0x28};
27. sbit int_1=P3^3;
28. void main(void){
29. TMOD=0x11;
30. ET0=1;//定时器0开关
31. ET1=1;
32. TR0=1;//
33. TR1=1;
34. IT0=1;
35. EX0=1;
36. IT1=1;
37. EX1=1;
38. EA = 1;
39. while (1){
40. for(i=0;i<8;i++){
41. P0=buf[i];
42. P2=table2[i];
43. delay_50us(20);
44. }
45. }
46. }
47. void procBuf(void){
48. buf[0]=table1[num_0/10];
49. buf[1]=table1[num_0%10];
50. buf[2]=table1[num_1/10];
51. buf[3]=table1[num_1%10];
52. buf[4]=table1[num_2/10];
53. buf[5]=table1[num_2%10];
54. buf[6]=table1[num_3/10];
55. buf[7]=table1[num_3%10];
56. }
57. void int0(void) interrupt 0{
58. num_0++;
59. if(num_0==100){
60. num_0=0;
61. }
62. procBuf();
63. }
64. void timer0(void) interrupt 1 {
65. TH0 = (65536-10000)/256;
66. TL0 = (65536-10000)%256;
67. if(++num_1==100){
68. num_1=0;
69. }
70. procBuf();
71. }
72. void int1(void) interrupt 2{
73. num_2++;
74. if(num_2==100){
75. num_2=0;
76. }
77. procBuf();
78. }
79. void timer1(void) interrupt 3 {
80. TH1 = (65536-50000)/256;
81. TL1 = (65536-50000)%256;
82. tmp++;
83. if(tmp==20){
84. tmp=0;
85. int_1=~int_1;
86. if(++num_3==100){
87. num_3=0;
88. }
89. procBuf();
90. }
91. }

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