[ts-7000] "boot-loader problem"

[ragin shah <>]

Hi !

Thanx for reply.

I am able to write the bootloader file realated to EEPROM in RAM.

I did it following way.

first of all I serially booted TS-7250 board using serial blaster utility.

then,

Redboot> load -r -b 0x00218000 -h 192.168.0.25 boot.bin

This boot.bin file is for EEPROM & There is 'CRUSH' at the begining.

After that I have written it to EEPROM :

Redboot> eeprom_write -b 0x00218000 -o 0 -l 2048

& it shows that "2048 bytes written in EEPROM".

but after that when I see again the content of EEPROM:

Readboot> eeprom_read -b 0x00218000 -o 0 -l 2048 ,

It doesn't show "CRUS" at begining,It shows only "C" .

After that when I reset the board, It is not able to boot from EEPROM. & when I see the contents of EEPROM ,it show that all bytes in EEPROM are 00...

 

I have also short the jumper JP3 to be able to write in EEPROM.

but still I am not able to write in EEPROM.

So, what should be done?

Please help me .

Thanks in advance !

Curtis Monroe <> wrote:

The SerialBlaster comes with a patch to add instructions to Redboot that can
read and write the EEPROM image.

I think I put a readme in that explains it. There may be more information in
the SerialBlaster code, or previous posts.

As far as getting a new image to burn. You can find an EEPROM image on the TS
ftp site (I believe). Or grab a good image from a working card. Check the
SerialBlaster directory to see if I left a bin image there.

Another solution is to build the SerialBlaster as a "Burnable Image". In this
case you will have your own boot image! And you can customize it. The
serialblaster eeprom image should be customized for your board's
configuration before you build it. And you should use a patched version of
RedBoot, as the eeprom image skips the TS intermediate boot image and boots
RedBoot directly. So I had to move some functionality to RedBoot, 'cause I
didn't have the space for this in the 2KB EEPROM.

Sometime just the fist byte of the EEPROM is bad, usually a zero, instead of
'C' for "CRUS" signature. You can fix just this byte and everything might
work.

Good Luck,
-Curtis.


On April 13, 2006 09:01 am, ragin shah wrote:
> Hi !
> I m using TS-7250 board.Somehow, boot.bin file in
> EEPROM got currpted. To resolve that problem, using
> serial blaster utility , I am able to boot board
> serially( I mean , I could transfer boot.bin file in
> RAM , redboot.bin in flash).
> Now, if i want to boot directly from EEPROM then what
> should i do? which boot.bin file should i write to
> EEPROM  ? & how shall i write it?
> Thans in advance!
>
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