--- In "Gary Wicker" <> wrote:
>
> Hello all,
>
> I've been experimenting with replacing the ts7250-preboot and
> ts7250-tsbootrom images in EEPROM and flash, and now my TS7250 is
stuck in
> what appears to be a factory test or burn-in mode. Has anyone ever
seen
> this? If so, do you know of a procedure to clear it and get the
board
> working again?
>
> I checked the Users's Manual and there is a mention of JP5 being
used for
> "factory test", but it doesn't seem to have any effect. My guess
is that
> the 2K EEPROM may have some calibration values in addition to the
early boot
> code.Here's a log with more details:
>
>
**********************************************************************
>
> >> TS-NANDBOOT, Rev 1.00 - built 10:14:31, Mar 7 2005
> >> Copyright (C) 2004, Technologic Systems
>
>
> >> TS-BOOTROM, Rev 1.08 - built 16:18:21, Jun 5 2006
> >> Copyright (C) 2006, Technologic Systems
> >> starting initial burn-in...
>
> RedBoot>
> RedBoot> load -v -r -b %{FREEMEMLO} -m xmodem
> CCCCCCCCCRaw file loaded 0x00053000-0x000537d3, assumed entry at
0x00053000
> xyzModem - CRC mode, 17(SOH)/0(STX)/0(CAN) packets, 11 retries
> RedBoot> eeprom_write -b %{FREEMEMLO} -o 0 -l 2048
> Written 2048 bytes of eeprom content
> RedBoot>
>
> >> TS-NANDBOOT, Rev 1.00 - built 10:14:31, Mar 7 2005
> >> Copyright (C) 2004, Technologic Systems
>
>
> >> TS-BOOTROM, Rev 1.08 - built 16:18:21, Jun 5 2006
> >> Copyright (C) 2006, Technologic Systems
> >> starting initial burn-in...
> ßÿ
>
> >> TS-NANDBOOT, Rev 1.00 - built 10:14:31, Mar 7 2005
> >> Copyright (C) 2004, Technologic Systems
>
>
> >> TS-BOOTROM, Rev 1.08 - built 16:18:21, Jun 5 2006
> >> Copyright (C) 2006, Technologic Systems
> >> rerunning burn-in (already tested OK before)...
>
> ********************************************************************
>
> Thanks for any help!
>
> Gary Wicker
>
Just in case anyone else runs into this problem, I was able to fix
this using eeprom_write. It appears that the ts7250-tsbootrom image
expects the final locations in the 2K EEPROM to be cleared. When
programming the 2KB eeprom using xmodem or perhaps with tftp, some
memory after the image may not be cleared and if you do an
eeprom_write with a length of 2048 you can end up with some non-zero
values in those high locations. Just reboot using serial_blaster and
clear them with an mfill'd 0 block and eeprom_write -o (offset).
That will clear the locations that ts7250-tsbootrom looks at for
factory programming data and it will reboot normally again.
Cheers
Gary
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