标题: AVR_点亮LED程序 [打印本页]

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作者: liuqq    时间: 2015-5-22 01:11
标题: AVR_点亮LED程序
//++++++++++++++++++++++++++++++++++
很纠结的用ICC AVR写了个程序。调试通过，木有仿真下载线。貌似挺贵，
穷人家的孩子买不起。钻研下做个AVR ISP还是比较靠谱，加油！
+++++++++++++++++++++++++++++++++++//
#include <iom16v.h>
#include <macros.h>
#define  uchar unsigned char
#define  uint  unsigned int
void delay(uint ms)
{
    uint i,j;
for(i=0;i<ms;i++)
    {
    for(j=0;j<1141;j++);
       }
}
void main()
{
   uchar k;
   DDRA|=BIT(2);
   PORTA|=BIT(2);//我表示AVR的位操作比51单片机更加复杂，|运算是关键
   
   DDRB=0XFF;
   PORTB=0XFF;
   while(1)
   {
   for(k=0;k<8;k++) //for语句
   {
   PORTB&=~BIT(k);//取反操作
   delay(500);//延时500ms
   
   PORTB|=BIT(k);
   delay(500);
   }
   }
}//我靠！写完了。滚床睡觉，很晚了, 明天是该死的体育考试，oh my god

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作者: liuqq    时间: 2015-5-22 01:17

1. #include <iom16.h>
   
2. 
   
3. #include <macros.h>
   
4. 
   
5. 
   
6. /* This seems to produce the right amount of delay for the LED to be
   
7. 
   
8. * seen
   
9. 
   
10. */
    
11. 
    
12. void Delay()
    
13. 
    
14. {
    
15. 
    
16. unsigned char a, b;
    
17. 
    
18. 
    
19. for (a = 1; a; a++)
    
20. 
    
21. for (b = 1; b; b++)
    
22. 
    
23. ;
    
24. 
    
25. }
    
26. 
    
27. 
    
28. void LED_On(int i)
    
29. 
    
30. {
    
31. 
    
32. PORTB = ~BIT(i);        /* low output to turn LED on */
    
33. 
    
34. Delay();
    
35. 
    
36. }
    
37. 
    
38. 
    
39. void main()
    
40. 
    
41. {
    
42. 
    
43. int i;
    
44. 
    
45. DDRB = 0xFF;        /* output */
    
46. 
    
47. PORTB = 0xFF;        /* all off */
    
48. 
    
49. 
    
50. while (1)
    
51. 
    
52. {
    
53. 
    
54. /* forward march */
    
55. 
    
56. for (i = 0; i < 8; i++)
    
57. 
    
58. LED_On(i);
    
59. 
    
60. /* backward march */
    
61. 
    
62. for (i = 8; i > 0; i--)
    
63. 
    
64. LED_On(i);
    
65. 
    
66. /* skip */
    
67. 
    
68. for (i = 0; i < 8; i += 2)
    
69. 
    
70. LED_On(i);
    
71. 
    
72. for (i = 7; i > 0; i -= 2)
    
73. 
    
74. LED_On(i);
    
75. 
    
76. }
    
77. 
    
78. }

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