lesson4._c

来自「AVR单片机C语言编程及应用实例 适合初学者的学习研究 其中包含Atmega」· _C 代码 · 共 41 行

#include <iom16v.h>
#include <macros.h>
#define  uchar unsigned char
#define  uint  unsigned int
#pragma data:code 
const  table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,
		           0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
void delay(uint ms)
{
        uint i,j;
	for(i=0;i<ms;i++)
	   {
	   for(j=0;j<1141;j++);
       }
}
void show(uchar j,uchar k)
{
    PORTA|=BIT(3);
	PORTB=table[j];
	PORTA&=~BIT(3);
	delay(50);
	PORTB=0XFF;
	PORTB&=~BIT(k);
	PORTA|=BIT(4);
	PORTA&=~BIT(4);
	delay(50);
}
void main()
{
        uchar i,j;
        DDRA|=BIT(3);
	DDRA|=BIT(4);
	DDRB=0XFF;
	while(1)
	{
	 for(j=0;j<600;j++)
	  for(i=0;i<6;i++)
	   show((i+j/100)%6,i);
	   
	}
}