Hi Folks, I don't often post but this one has me beaten. I'm simply connecting a 24LC32 to a 17C44 RB2(SDA) and RB3(SCL). I have a pullup resistor on SDA and my waveforms appear to be correct. However I'm not having success. Does anyone out there have any C code (preferably Hitech) which could help me out of this bind. The problem that I see is that I appear to have no response from the 24LC32 - not even an ack to the command byte. I put a stop before the start just in case it might be in an unknown state beforehand - but no joy. Any advice welcome. Thanks in advance John Walshe PS yes it has power and no it is not dead (I've already replaced it once !) *************************************************************** John.Walshe@inpactmicro.com INPACT MICROELECTRONICS (Irl) Ltd WWW.INPACTMICRO.COM *************************************************************** -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.