標(biāo)題: AVR_點(diǎn)亮LED程序 [打印本頁(yè)]
作者: liuqq    時(shí)間: 2015-5-22 01:11
標(biāo)題: AVR_點(diǎn)亮LED程序
//++++++++++++++++++++++++++++++++++
很糾結(jié)的用ICC AVR寫了個(gè)程序。調(diào)試通過(guò)，木有仿真下載線。貌似挺貴，
窮人家的孩子買不起。鉆研下做個(gè)AVR ISP還是比較靠譜，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單片機(jī)更加復(fù)雜，|運(yùn)算是關(guān)鍵
   
   DDRB=0XFF;
   PORTB=0XFF;
   while(1)
   {
   for(k=0;k<8;k++) //for語(yǔ)句
   {
   PORTB&=~BIT(k);//取反操作
   delay(500);//延時(shí)500ms
   
   PORTB|=BIT(k);
   delay(500);
   }
   }
}//我靠！寫完了。滾床睡覺(jué)，很晚了, 明天是該死的體育考試，oh my god

作者: liuqq    時(shí)間: 2015-5-22 01:17
  1. #include <iom16.h>

  3. #include <macros.h>


  6. /* This seems to produce the right amount of delay for the LED to be

  8. * seen

  10. */

  12. void Delay()

  14. {

  16. unsigned char a, b;


  19. for (a = 1; a; a++)

  21. for (b = 1; b; b++)

  23. ;

  25. }


  28. void LED_On(int i)

  30. {

  32. PORTB = ~BIT(i);        /* low output to turn LED on */

  34. Delay();

  36. }


  39. void main()

  41. {

  43. int i;

  45. DDRB = 0xFF;        /* output */

  47. PORTB = 0xFF;        /* all off */


  50. while (1)

  52. {

  54. /* forward march */

  56. for (i = 0; i < 8; i++)

  58. LED_On(i);

  60. /* backward march */

  62. for (i = 8; i > 0; i--)

  64. LED_On(i);

  66. /* skip */

  68. for (i = 0; i < 8; i += 2)

  70. LED_On(i);

  72. for (i = 7; i > 0; i -= 2)

  74. LED_On(i);

  76. }

  78. }
復(fù)制代碼






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