[ECOS] Redboot

[Doug Fraser]

Hello Anthony,

One thing I would try, is convert the srec to pure binary.
Then use plh to load it into RAM at a known location.
To do this, run 'env' first, and set the load address.
For example, set it to 10000 hex.

then, assuming that you have set up your ip (niot),
and that the binary image is in /tmp/redboot.bin,

plh 20 0 /tmp/redboot.bin

You will now have the image in RAM at 10000 hex.
The length will be reported from plh when it completes.
(it reports in decimal) Assuming that it is 20000 hex bytes long,

pflash 10000 30000 fc000000

That should do it. Then power off, switch J4 to select the block
you just programmed, and power up.

(I am assuming a general knowledge of MBX and EPPC-Bug here)

Perhaps Bill Gatliff can add some details off line.
He is also working with an MBX board, and has dealt with
much of this already. Bill????

cheers

Doug

> -----Original Message-----
> From: Anthony Massa [ mailto:amassa@logici.com ]
> Sent: Thursday, December 14, 2000 4:03 PM
> To: 'eCos (E-mail)'
> Subject: [ECOS] Redboot
> 
> 
> I am trying to get redboot running on my MBX board.  I have built the
> redboot images.  However, the srec image I noticed started at address
> 0xfe000000.  I could not download this image using eppc-bug.  
> So, I used
> objcopy with the line from the documentation:
> 
> powerpc-eabi-objcopy -O srec --change-address=0x02040000 redboot.img
> redboot_mbx.srec.
> 
> I then tried to download this new image (redboot_mbx.srec).  
> I cannot see
> any output from the serial port or any response from the board.
> 
> Can you help me out and let me know what I might be forgetting to do.
> 
> Thanks.
> 
>