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標題: AVR_點亮LED程序 [打印本頁]

作者: liuqq 時間: 2015-5-22 01:11
標題: AVR_點亮LED程序
//++++++++++++++++++++++++++++++++++
很糾結的用ICC AVR寫了個程序。調試通過，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單片機更加復雜，|運算是關鍵

DDRB=0XFF;
PORTB=0XFF;
while(1)
{
for(k=0;k<8;k++) //for語句
{
PORTB&=~BIT(k);//取反操作
delay(500);//延時500ms

PORTB|=BIT(k);
delay(500);
}
}
}//我靠！寫完了。滾床睡覺，很晚了, 明天是該死的體育考試，oh my god

作者: liuqq 時間: 2015-5-22 01:17

#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);
}
}

復制代碼

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