AVR_点亮LED程序

ID:80436发表于 2015-5-22 01:11|显示全部楼层

//++++++++++++++++++++++++++++++++++
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

ID:80436发表于 2015-5-22 01:17|显示全部楼层

#include< iom16.h>
#include< macros.h>
/* This seems to produce the right amount of delay for the LED to be
* seen
*/
void Delay()
{
unsigned char a, b;
for (a = 1; a; a++)
for (b = 1; b; b++)
;
}
void LED_On(int i)
{
PORTB = ~BIT(i); /* low output to turn LED on */
Delay();
}
void main()
{
int i;
DDRB = 0xFF; /* output */
PORTB = 0xFF; /* all off */
while (1)
{
/* forward march */
for (i = 0; i< 8; i++)
LED_On(i);
/* backward march */
for (i = 8; i > 0; i--)
LED_On(i);
/* skip */
for (i = 0; i< 8; i += 2)
LED_On(i);
for (i = 7; i > 0; i -= 2)
LED_On(i);
}
}

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AVR_点亮LED程序