Hi Guys (& Gals ?) I have just bought a couple of Philips PCF8753 RTC chips from RS components, (seemed like a good idea at the time!) but I am having a mare of a time talking to them on my 16F877A. I have the wiring ok (I am absolutely 100% sure of this - after all it is only 2 wire I2C :) I have followed some of the not-very-helpful philips datasheets (is this me, or are all philips datasheets hard to read?). but can't get it to talk to me... I am using CCSinfo's PCWH C Compiler. but I can read ASM if someone has any ideas/code/guidelines/valium... Thanks Jim -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body