练习._c

基于AVR实验平台下ATMega128芯片实习作业

#include<iom128v.h>
void delay_1ms(void)
{ unsigned int i;
for(i=0;i<1000;i++);
}
void delay_nms(unsigned int n)
{unsigned int i=0;
for(i=0;i<n;i++);
delay_1ms();
}

void main()
{unsigned int m;
 unsigned  int v;
 unsigned  A[]={0xff,0x00,0xff,0x00,0xff,0x00};
 unsigned  B[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
 unsigned  C[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};
 unsigned  D[]={0x3c,0xc3,0x3c,0xc3};
 unsigned  E[]={0xfc,0xf3,0xcf,0x3f};
 unsigned  F[]={0x7e,0xbd,0xdb,0xe7,0xdb,0xbd,0x7e};
 DDRB=0xff;
 PORTB=0xff;
 for(v=0;v<1000;v++)
 { for(m=0;m<6;m++)
   {PORTB=A[m];
   delay_nms(100000);delay_nms(100000);}
   for(m=0;m<8;m++)
   {PORTB=B[m];
   delay_nms(100000);delay_nms(100000);}
   for(m=0;m<8;m++)
   {PORTB=C[m];
   delay_nms(100000);delay_nms(100000);}
   for(m=0;m<8;m++)
   {PORTB=F[m];
    delay_nms(100000);delay_nms(100000);}
   for(m=0;m<4;m++)
   {PORTB=D[m];
   delay_nms(100000);delay_nms(100000);}
   for(m=0;m<4;m++)
   {PORTB=E[m];
   delay_nms(100000);delay_nms(100000);}
 }
 }