Write-Test for "M25P10-A"

[The Raven]

Hello,
this chip is marked as "untested" in write mode.
So here are my test-results:

Erase in d8-Mode is not working (see log).
But i think it's the already known "serprog bug".
Erase in c7-mode is ok.

Write is working in both modes.
But i don't know why in c7-mode the log shows:
0x000000-0x007fff:W, 0x008000-0x00ffff:S, 0x010000-0x017fff:S,
0x018000-0x01ffff:S

I have created the test-file with dd and urandom. The file (131072 byte)
is full with data.
So it should write (W) not only to 0x007fff. Strange!

If you need more logs or infos, let me know.

BTW: The chip is labeled "25P10VP". I see nothing with "-A".
And the chip was found on a "Maxtor" hard disk drive.

[Stefan Tauner]

On Thu, 19 Jun 2014 15:36:11 +0200
The Raven <originalraven(a)hotmail.com> wrote:

  Hello,
 this chip is marked as "untested" in write mode.
 So here are my test-results:
 
 Erase in d8-Mode is not working (see log).
 But i think it's the already known "serprog bug".
 Erase in c7-mode is ok.
 
 Write is working in both modes.
 But i don't know why in c7-mode the log shows:
 0x000000-0x007fff:W, 0x008000-0x00ffff:S, 0x010000-0x017fff:S,
 0x018000-0x01ffff:S
 
 I have created the test-file with dd and urandom. The file (131072 byte)
 is full with data.
 So it should write (W) not only to 0x007fff. Strange!
 
 If you need more logs or infos, let me know.
 
 BTW: The chip is labeled "25P10VP". I see nothing with "-A".
 And the chip was found on a "Maxtor" hard disk drive.
That is indeed very strange and I have only one plausible theory about
that: This could happen if erasing the first block worked fine
while flashrom failed afterwards. If then the same contents (as were on
the chip before the erase) would be written, only the first block would
have to be rewritten. And since your erase had exactly that
characteristic of failing at the second block this might be the case
depending on the order and data of your actions.

Could you reproduce that problem? Were you reusing the random file or
have you recreated it between writes?

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner

[The Raven]

Am 03.08.2014 um 21:28 schrieb Stefan Tauner:
  On Thu, 19 Jun 2014 15:36:11 +0200
 The Raven <originalraven(a)hotmail.com> wrote:

  Hello,
 this chip is marked as "untested" in write mode.
 So here are my test-results:

 Erase in d8-Mode is not working (see log).
 But i think it's the already known "serprog bug".
 Erase in c7-mode is ok.

 Write is working in both modes.
 But i don't know why in c7-mode the log shows:
 0x000000-0x007fff:W, 0x008000-0x00ffff:S, 0x010000-0x017fff:S,
 0x018000-0x01ffff:S

 I have created the test-file with dd and urandom. The file (131072 byte)
 is full with data.
 So it should write (W) not only to 0x007fff. Strange!

 If you need more logs or infos, let me know.

 BTW: The chip is labeled "25P10VP". I see nothing with "-A".
 And the chip was found on a "Maxtor" hard disk drive.
 That is indeed
very strange and I have only one plausible theory about
 that: This could happen if erasing the first block worked fine
 while flashrom failed afterwards. If then the same contents (as were on
 the chip before the erase) would be written, only the first block would
 have to be rewritten. And since your erase had exactly that
 characteristic of failing at the second block this might be the case
 depending on the order and data of your actions.

 Could you reproduce that problem? Were you reusing the random file or
 have you recreated it between writes?
Hello,

Now i have realized that i made it wrong! The test is done in d8 mode
and NOT in c7!
Chip is working very well in c7 mode. But in d8 -> no chance!
Erase and programming (which had worked last time i tested, but maybe
not correct?!) fails now always.
But i am still not sure if it's a problem of serprog.

This is the output when trying to write in d8-mode:

Erasing and writing flash chip... Trying erase function 0...
0x000000-0x007fff:EWError: invalid response 0x12 from device
spi_nbyte_program failed during command execution at address 0x0
Reading current flash chip contents... Error: invalid response 0xE6 from
device
Can't read anymore! Aborting.
FAILED!
Uh oh. Erase/write failed. Checking if anything has changed.
Reading current flash chip contents... Error: invalid response 0x80 from
device
Can't even read anymore!
Your flash chip is in an unknown state.
Please report this on IRC at chat.freenode.net (channel #flashrom) or
mail flashrom(a)flashrom.org, thanks!

[Stefan Tauner]

On Thu, 7 Aug 2014 10:48:22 +0200
The Raven <originalraven(a)hotmail.com> wrote:

  Error: invalid response 0x12 from device
That's always an issue in the serprog device.

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner

[The Raven]

Am 07.08.2014 um 14:50 schrieb Stefan Tauner:
  On Thu, 7 Aug 2014 10:48:22 +0200
 The Raven <originalraven(a)hotmail.com> wrote:

  Error: invalid response 0x12 from device
That's always an issue in the serprog device.
Yes true! :-)
With the official "serprog" erase and write fails always.
But with the frser-duino from "Urja Rannikko" it works!

Attached you can find the results for erase and write with frser-duino
from "Urja Rannikko".
So this can be marked as solved (because it was a serprog problem), and
the chip can be marked as tested for write.

Greets

[Stefan Tauner]

On Wed, 4 Mar 2015 08:47:23 +0100
The Raven <originalraven(a)hotmail.com> wrote:

  So this can be marked as solved (because it was a
serprog problem), and
 the chip can be marked as tested for write.
Done, thanks.

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner