今天这个很好理解，大家自己就可看明白：
Proteus截图：
Atmel Studio 6.2程序：
- /*
- * GccApplication25.c
- *
- * Created: 2014-9-19 22:55:40
- * Author: Administrator
- */
- #include <avr/io.h>
- #define uchar unsigned char
- #define uint unsigned int
- unsigned char tab1[]={0x00,0x36,0x36,0x36,0x49};
- unsigned char tab2[]={0x01,0x02,0x04,0x08,0x10};
- void delay(uint n)
- {
- uint i;
- for(i=0;i<n;i++);
- }
- int main(void)
- {
- uchar j,t=0;
- DDRC=0xFF;
- PORTC=0xFF;
- DDRD=0xFF;
- PORTD=0xFF;
- while(1)
- {
- for(j=0;j<6;j++)
- {
- PORTD=tab2[t];
- PORTC=tab1[j];
- delay(555);
- t++;
- if(t==6)
- {
- t=0;
- PORTD=0x00;
- }
- }
- }
- }
| 
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