Problem with ack in I2C (dspic30F2011 )

[Navid T]

Hi friends
I write this kind of code to send start bit and address to slave:

_SEN=1;
while(_SEN);
I2CTRN = 0B11010000;
while(_TRSTAT);

It works but the problem is if slave doesn't send ack it'll always wait for ack for ever, how should i write my code that wait for ack but not always?
Regards

 

[raco_rage]

int counter_i2c = 0xFFFF;
while((_TRSTAT == 0) && (counter_i2c != 0))			 
	counter_i2c--;

Obviously you can change the counter_i2c value depending on how long you want to wait.