--- In Curtis Monroe <> wrote:
>
> On December 23, 2006 12:10 pm, chan8337 wrote:
> > Someone please help,
> >
> > I have problem with booting into the Redboot for the TS - 7200. I
> > think the redboot is corrupted. My TS -7200 can boot into the TS-
> > BootRom but it just hang there no more redboot welcome message.
> >
> > During the first boot(Power On), i got this message:
> > >> TS-BOOTROM, Rev 1.05 - built 11:31:03, Mar 8 2005
> > >> Copyright (C) 2005, Technologic Systems
> > sdram test failed!
> > addr: .....X.X.X...................... ( 'X' - bad bit )
> > data: ............................X...
> >
======================================================================
>
> This indicates a physical problem with the SDRAM or the controller,
or a
> soldering problem. This happens before RedBoot is loaded. The TS-
7200 boards
> boot from NOR flash. That is where this code is being run from.
>
> Did you ever zap the board with static from your finger?
>
> > When i pressed the reset button, then there is no more sdram
failed.
> >
> > >> TS-BOOTROM, Rev 1.05 - built 11:31:03, Mar 8 2005
> > >> Copyright (C) 2005, Technologic Systems
> > >> TS-7200: Rev E0 CPU, Rev C PLD, 32MB SDRAM
> > +
> >
>
> I don't know why the SDRAM does not fail on the reboot?
> Maybe the test is skipped?
> Maybe its a power issue? what kind of wall transformer are you
using?
>
> > Then the board just hang there ..and wont boot into redboot.
> >
> > I search the site and i found one solution that is using the
> > SerialBlaster. But does it support TS-7200? From what i have
read,
> > the SerialBlaster only for ts-7250. if it support anyone can
share
> > the boot image for ts-t200? thanks thanks
> >
>
> The SerialBlaster will not work on older TS-7200 boards that have a
fast TS
> Watchdog. They may work for more recent TS-7200 boards. To see the
speed of
> the watchdog count how many seconds between flashes of the RED led,
when the
> boards serial mode jumper is set.
>
> SerialBlaster will allow you to load RedBoot in to memory. Once
your in
> Redboot you could burn a new RedBoot to flash.
>
> You should be an expert if you plan to use the SerialBlaster. You
need to know
> how to rebuild Redboot, etc. Its not for beginners.
>
> > And what kind of null modem does the board used? full
handshaking,
> > partial hand shaking, non handshaking, loopback handshaking.
>
> The null modem cable only needs the "Transmit Data" and "Receive
Data", there
> is no handshaking. So turn off hardware and software handshaking.
>
> With no handshaking your terminal and the TS-7200 have to be able
to receive
> data as quickly as its sent or there will be an overflow error.
>
> >
> >
>
> -Curtis.
>
=====================================================================
Thanks Curtis for your support and it helps alot. But i do have other
questions to ask. Sorry to bodering you.
For your info, this is the first time I playing with the board. I
used it for my final year project. So i still a noob on this.
I didnt zapped the board with my finger(Maybe i did and i dont know :
( ). I am using the original adapter to drive the ts-7200 board.
If there exists a physical error on the SDRAM or the controller does
it means that the board is dead? Is there any other solutions to
bring the board back to alive?
>From what u have said, the serialblaster only for expert. So Do you
have any other solutions to re program the flash for begineers?
And i still not sure if my board is the most recent 7200 board or the
old one. When i set the jumper to boot from serial, the red led is
not blinking.
Your helps are greatly Appreciate.
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