Actually, using page mode isn't QUITE as thrilling as it seems. You can write 64 bytes at a time, yes... but maybe not the RIGHT 64. The way it seems to actually work is that you can write up to a max of 64 bytes as long as they are all within the SAME page boundary. You could write locations h'0000' to h'003F" in one pass. You would require two passes to write from h'0020' to h'005f' , i.e. h'0020' to h'003f' for one pass then h'0040' to h'005F' in another pass. So you need to keep some overhead going to keep up with it. Overall it can be done OK (I've done it many times), but a Ramtron is still lots easier. --Bob A On Mon, Sep 29, 2008 at 2:51 PM, Andre Abelian wrote: > Hi to all, > > > I just wanted to mention that I tried the eeprom write in page mode > I put together my own routine. I turned off the eeprom power after 5ms > write then I checked the content of eeprom with programmer and the > result is Yes the eeprom is writing 64 bytes in 5 ms that's cool. > > Now I have more questions: > > 1. if I want to write 32000 byte using page mode is this means I have to > repeat same function 32000/64=500 times? X 5ms = 2.5 seconds > > 2. In datasheet I couldn't find command how to do full erase or fill? > > I use 24LC256 from microchip > > > Any idea or suggestion will appreciate. > > Thanks > > Andre > > > IMPORTANT NOTICE: This notice constitutes Proprietary Rights identification of this email including all attachments, which is property that is intended only for the use of the individual or entity to which it is addressed. It also may contain proprietary data or information that is privileged, confidential, or otherwise protected from disclosure under applicable law. The recipient of this data agrees to abide by the United States Export Control of Technical Data and Equipment under the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR). The recipient agrees to abide by these laws and their regulations not only for export and re-export, but for disclosure to non-U.S. citizens. This email does not grant or assign rights of ownership in the proprietary subject matter herein, nor shall it be construed as a joint venture, partnership, teaming agreement, or other formal business relationship. If the reader of this e-mail transmissio n! > is not the intended recipient or the employee or agent responsible for delivering the transmission to the intended recipient, you are hereby notified that any dissemination, distribution, copying or use of this e-mail or its contents is strictly prohibited. Please notify the sender you received it in error by responding to the e-mail and then permanently delete it and all copies of the e-mail immediately, including any copies of it in your deleted email folder. > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist