programming atmega16a with cm8880

[foxbrain]

hi
i'm tring to program atmega16a to be used with cm8880 so i can use it to dial numbers on a phone and my code is:

#include <avr/io.h>
#include <util/delay.h>
#include <stdbool.h> 
#define SETBIT(ADDRESS,BIT) (ADDRESS |= (1<<BIT)) 
#define CLEARBIT(ADDRESS,BIT) (ADDRESS &= ~(1<<BIT)) 
#define CHECKBIT(ADDRESS,BIT) (ADDRESS & (1<<BIT)) 
#define delay(a) _delay_ms(a) 

void setsend(void)
{
DDRD=0xFF;
PORTD=0xC0;
SETBIT(PORTD,4);
SETBIT(PORTD,5);
PORTD&=0xF9;
delay(60);
PORTD&=0xF0;
}
bool ready()
{
	DDRD=0xF0;
	SETBIT(PORTD,4);
	CLEARBIT(PORTD,5);
	while (!CHECKBIT(PIND,1))//check the b1 on the status register if ready to transmit
	{
		//asm "nop";
	}
	return true;
}
void dail()
{
	DDRD=0xFF;
	SETBIT(PORTD,5);
	CLEARBIT(PORTD,4);
	PORTD&=0xEA;
	PORTD&=0xE9;
	PORTD&=0xE5;
	PORTD&=0xE6;
	PORTD&=0xE5;
	PORTD&=0xE9;
	PORTD&=0xE2;
	PORTD&=0xE6;
	PORTD&=0xE8;
	PORTD&=0xE2;
}	

int main(void)
{
    setsend();
	while(1)
	{
		if (ready())
		{
			dail();
			break;
		}
		
	}
}

but the code is stocked in the while in the ready function....
so what might the problem be?
thanks

 

[foxbrain]

no one knows an answer for me....
heeeeeeeeeeeeeeeeeelp