Ok, so a lot of talk about bit bashed I2C masters, which even as a newcomer, is no too difficult, and there are a lot of code example about. But has anyone out there implemented a bullet proof I2c interupt-driven SSI based slave, to receive multiple bytes ?. Martin Lintzgy -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics