2010년 10월 14일 목요일 (FND컨트롤)

#include<avr/io.h>

int main()

{

DDRC = 0x00;

DDRE = 0xff;

volatile unsigned char a=0;

volatile unsigned char R=0;

volatile unsigned char L=0;

for(;;)

{

asm("NOP");

R=0x00;

L=0x00;

a=0;

while(1){

if(9>=a)

{

//PORTE=R;

_delay_ms(200);

a++;

R++;

}

else if(0x99>=R)

{

a=0;

R=0;

L=L+0x10;

R=L;

}

else

{

a=0;

R=0;

L=0;

}

PORTE=R;

}}

return 0;

}

/* 00~99까지 증가 FND

#include<avr/io.h>

int main()

{

DDRC = 0x00;

DDRE = 0xff;

volatile unsigned char a=0;

volatile unsigned char R=0;

volatile unsigned char L=0;

for(;;)

{

asm("NOP");

R=0x00;

L=0x00;

a=0;

while(1){

if(9>=a)

{

//PORTE=R;

_delay_ms(200);

a++;

R++;

}

else if(0x99>=R)

{

a=0;

R=0;

L=L+0x10;

R=L;

}

else

{

a=0;

R=0;

L=0;

}

PORTE=R;

}}

return 0;

}

*/

/*   스위치+FND숫자표시

#include<avr/io.h>

int main()

{

DDRC = 0x00;

DDRE = 0xff;

volatile unsigned char a=0;

volatile unsigned char R=0;

volatile unsigned char L=0;

for(;;)

{

asm("NOP");

R=0x00;

L=0x00;

a=~PINC;

while(a>=1)

{

a/=2;

R++;

L=R<<4;

}

PORTE=R+L;

}

return 0;

}

0000 0001 = 0000 0001 1

0000 0010 = 0000 0010 2

0000 0100 = 0000 0011 3

1000 0000 = 0000 1000 8

*/