Hello Stefan,
you're right I did wrote to the flash ship twice (and forgot the -V option the first time). I'm confident that the write operation worked : I first have read and save, then updated this chip (2nd bios chip of a gtx 770 nvidia card) succesfully with flashrom and compared with an hexadecimal the 2 dumps which reported the attempted differences.
If you wish I can ran the write operation again and send you the result.
Also I did not have the same success with the 1rst bios chip which is not recognized (0Kb) by flashrom, and neither by nvflash under windows (nvflash says : unknown eeprom - BF,008D : this is a SST chip) This is a 2Mbits spi eeprom with a sot-23 package.
regards
gilles
Le 5 janv. 2015 à 22:02, Stefan Tauner stefan.tauner@alumni.tuwien.ac.at a écrit :
On Mon, 5 Jan 2015 14:46:26 +0100 Gilles Auréjac gilles@polysoft.fr wrote:
Reading old flash chip contents... done. Erasing and writing flash chip... Trying erase function 0... 0x000000-0x000fff:S, 0x001000-0x001fff:S, 0x002000-0x002fff:S, 0x003000-0x003fff:S, 0x004000-0x004fff:S, 0x005000-0x005fff:S, 0x006000-0x006fff:S, 0x007000-0x007fff:S, 0x008000-0x008fff:S, 0x009000-0x009fff:S, 0x00a000-0x00afff:S, 0x00b000-0x00bfff:S, 0x00c000-0x00cfff:S, 0x00d000-0x00dfff:S, 0x00e000-0x00efff:S, 0x00f000-0x00ffff:S, 0x010000-0x010fff:S, 0x011000-0x011fff:S, 0x012000-0x012fff:S, 0x013000-0x013fff:S, 0x014000-0x014fff:S, 0x015000-0x015fff:S, 0x016000-0x016fff:S, 0x017000-0x017fff:S, 0x018000-0x018fff:S, 0x019000-0x019fff:S, 0x01a000-0x01afff:S, 0x01b000-0x01bfff:S, 0x01c000-0x01cfff:S, 0x01d000-0x01dfff:S, 0x01e000-0x01efff:S, 0x01f000-0x01ffff:S, 0x020000-0x020fff:S, 0x021000-0x021fff:S, 0x022000-0x022fff:S, 0x023000-0x023fff:S, 0x024000-0x024fff:S, 0x025000-0x025fff:S, 0x026000-0x026fff:S, 0x027000-0x027fff:S, 0x028000-0x028fff:S, 0x029000-0x029fff:S, 0x02a000-0x02afff:S, 0x02b000-0x02bfff:S, 0x02c000-0x02cfff:S, 0x02d000-0x02dfff:S, 0x02e000-0x02efff:S, 0x02f000-0x02ffff:S, 0x030000-0x030fff:S, 0x031000-0x031fff:S, 0x032000-0x032fff:S, 0x033000-0x033fff:S, 0x034000-0x034fff:S, 0x035000-0x035fff:S, 0x036000-0x036fff:S, 0x037000-0x037fff:S, 0x038000-0x038fff:S, 0x039000-0x039fff:S, 0x03a000-0x03afff:S, 0x03b000-0x03bfff:S, 0x03c000-0x03cfff:S, 0x03d000-0x03dfff:S, 0x03e000-0x03efff:S, 0x03f000-0x03ffff:S
Warning: Chip content is identical to the requested image. Erase/write done.
Hello Gilles,
the log you sent does not really indicate a successful write as the warning indicates... flashrom has skipped all blocks. I guess you just ran the write process with the same file twice and that's why. Can you please confirm that the chip was indeed written at some time before you created the log above?
-- Kind regards/Mit freundlichen Grüßen, Stefan Tauner