Post by thread:[PIC]: How do I read/write from/to a 24C16C serial

Hi! I've been searching and searching the web for some sample code to read and write a 24C16C serial EEPROM, but haven't found anything useful yet. I've tried some routines from http://www.phanderson.com/PIC/16C84/24lc65.html but that didn't work to well... Anybody here that happens to have some code snippets? (preferably for PIC 16x84) -- 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

>I've been searching and searching the web for some sample code to read and >write a 24C16C serial EEPROM, but haven't found anything useful yet. >I've tried some routines from >http://www.phanderson.com/PIC/16C84/24lc65.html but that didn't work to >well... Must not have searched the PICLIST archives. Try this: http://www.piclist.com/techref/microchip/i2c-dv.htm --Andrew _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- 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

Thanks, Drew! That helped me a bit on my way. But that routine can just read/write 256 bytes of an 24Cxx EEPROM (I hope I'm right) What I'm looking for is a routine that can read every single byte of an EEPROM (ie. a 2k eeprom) Maybe it's called page-shifting or something. -- 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

>But that routine can just read/write 256 bytes of an 24Cxx EEPROM (I hope >I'm right) >What I'm looking for is a routine that can read every single byte of an >EEPROM (ie. a 2k eeprom) >Maybe it's called page-shifting or something. You'll have to check out the datasheet for that chip. Reading can be done sequentially, without the need for switching pages, I believe. Writing, however, is dependent on the page size for a given chip. You can modify the routines from the web page that I mentioned so that they just read sequentially, rather than what's called "Random Read", as my code does. This should be a very minor change. --Andrew _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- 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