The file which was attached seems to be having some characters, like spaces, which are not allowed. So not able to download the code, as it gives error. Kinldy re-attach the file with no spaces in it. You can put underscore ( _ ) in place of spaces. Bhushan.
but what is the implementation for the slave side. since I want two uPSD's to comunicate on I2C channel. Do I just implement the isr to fill a buffer and send the ack?