I2c clock pin problem ADUC842

Thread Starter

murthyvaidehi

Joined May 8, 2014
1
Hi,
I am interfacing 2 ADUC842 controllers for I2C communication. I am able to communicate, but after communicating for a while the Clock Pin stops working.I have tried this with 3 ICs. The data line seems fine. I have used 10K pull up resistors I would appreciate any help on the problem. Thanks.
 

ErnieM

Joined Apr 24, 2011
8,377
A slave device may request extra time to do processing by pulling the clock low. That is frequently done by micro controller based slaves to process the currently received byte.

I don't have any idea how you would proceed except the obvious suggestion to find a short sequence that reliably reproduces the error (which implies you already know what the error is that you are looking for).

Good luck.
 
Top