Are you sure you are addressing the device correctly? Check the state of the address pins on the eeprom and ensure this ties with the slave address you are actually sending. Mike > -----Original Message----- > From: John Walshe @Inpact [SMTP:John.Walshe@INPACTMICRO.COM] > Sent: Friday, October 06, 2000 1:53 PM > To: PICLIST@MITVMA.MIT.EDU > Subject: PIC: (not) talking to 24LC32 > > 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. > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.