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.
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