[ECOS] Re: AT91EB40 RedBoot install problems - solution !

[J Sevy <jsevy at mcs dot drexel dot edu>]

Hi Raymond,
well, the board is really glitchy with regard to getting RedBoot to run 
from RAM! Once you get the image into ROM, it works flawlessly, but of 
course you need to get it to run from RAM first to load the image to flash.

My board has been incredibly agravating; nothing seemed to get the RAM 
image to run (connecting through Angel), and then suddenly it worked 
every time. I'm not sure what changed; however, here are some things 
that may be pertinent:
- try using the redboot_ROMRAM.elf image, instead of redboot_RAM.elf; 
the former works every time for me, the latter not at all
- try setting the baud rate to 19200, after the "tar rdi /dev/ttyS0" 
command but before the "lo" command:
    tar rdi /dev/ttyS0   (you're using Windows, so probably use "com1" 
instead of "/dev/ttyS0")
    set $ps=0xd3
    set remotebaud 19200
    lo
    c
- try waiting between the "lo" and "c" commands; wait maybe an hour or 
so. Why this should matter is a mystery, but that's the only thing I did 
differently when it worked a couple of times. Go figure...

Let me know if any of these work - it's exasperating, but it can work!!
  \
  Jon

Chan, Raymond wrote:
> Hi Jon,
>
> Sorry to bother you :-(
>
> I have searched the mailing list on eCOS and look like you have success with
> it recently.
>
> I am trying to load RedBoot into a Atmel AT91B40 V2.0 board and have the
> same problem as the others in eCOS mailing list. I can connect to Angel
> using gdb on Windows 2000. But after the "lo" and "c", I started
> HyperTerminal with 38400 baud and didn't see the "RedBoot" prompt even after
> I waited for a long time between "lo" and "c". Also is the 3 LEDs supposed
> to lit immediately after the "c" ?
>
> Thank you in advance for your help. I am really stuck here :-(
>
> Regards,
> Raymond


--

 ________________________________________________________________________
|                                                                        |
|                            Jonathan C. Sevy                            |
|                 Geometric and Intelligent Computing Lab                |
|                Dept. of Mathematics and Computer Science               |
|                           Drexel University                            |
|                     http://gicl.mcs.drexel.edu/sevy                    |
|________________________________________________________________________|




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