Re: Memory 95320 "Write failed"
Date: May 20, 2017 07:13PM
Hi Daniel,
I do not have eeprom type 95xxx, but I have similar eeproms 25080 and 25640 that use the same programming algorithm. I have tried to read / write to the 25640 but with selected device type as "25320" and both operation were successful. So I assume that the algorithm in PonyProg is good also for eeprom type "25320".
If read operation is successful for you, but write operation not, it can be caused also with insufficient power supply during writing. Do you use external power supply or power from COM port?
Yours sincerely
sonix
danidaniel Wrote:
-------------------------------------------------------
> Software: Ponyprog 2.08d.
> Operating system: Windows XP SP2.
> Hardware: SIprog with SPI adapter.
>
> No problem reading data from device, always
> successful with data different from 0xFF and
> Ox00.
> However, any attempt to write is completed with a
> "Write failed" message (Erasure device also
> returns error). Modification of configuration bits
> is not possible since bit checkboxes are
> disabled.
>
> After reading other posts, it's evident that
> similar issue was experienced by others but an
> explanation is still missing.
> Since this is an automotive memory, they may be
> different from a standard 25xxx/95xxx or using
> different write instructions (just a hypothesis).
> Please, if someone has solved this issue or
> someone has an idea how to fix it, let me know.
>
> Daniel