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Re: Redboot general and Question for EB55
- From: Gary Thomas <gthomas at ecoscentric dot com>
- To: Christophe Part <part at silicomp dot qc dot ca>
- Cc: ecos mailing list <ecos-discuss at sources dot redhat dot com>
- Date: 24 Oct 2002 16:16:48 -0600
- Subject: Re: [ECOS] Redboot general and Question for EB55
- References: <200210241808.35960.part@silicomp.qc.ca>
On Thu, 2002-10-24 at 16:08, Christophe Part wrote:
> Hi,
>
> I am trying to run redboot in ram on my eb55.
> I think I have made all the change I need for it.
> I changed the register base address for the eb55 in the plf_io.h and remove them from the var_io.h to handle the difference between the AT91M4080X and the AT91M55800A.
> I have added the package for the serial IO in my target in the ecos.db file.
> I changed the ram and sram memory section for eb55.
>
> Now I have successfully download the reboot.elf on my eb55 but I am not able to see the reboot prompt.
> After i have downloaded my load on the target with gdb I use the command c to start redboot and then use ^z to stop angel (maybe more gdb than angel).
> Is it the correct way to start redboot in ram ?
>
> On the Port A with minicom, I saw this $T050f:48370302;0d:18010102;#f5 each time, I hit enter.
> So maybe something is working but what ?
>
Yes, something is working - GDB! You had some problem in the
initialization of RedBoot and it quit at 0x02033748. If you
connect via GDB, you can get more information, a backtrace, etc.
> In my ecosconfig gui tool, I can not enable the port A just the B.
> Did I have to use the port B to see the redboot prompt ?
>
> Can someone tell me how can create a minimal redboot ?
> I just need to see the prompt and the basic command answering on my serial line.
> Where can I find this information ?
The simplest, RAM based RedBoot can be had via:
% ecosconfig new eb55 redboot
% ecosconfig tree
% make
Note: this version won't have FLASH or networking support.
To enable those, add (before the 'tree' step)
% ecosconfig add flash // FLASH support
% ecosconfig add eth_drivers // Networking (if you have a driver)
--
------------------------------------------------------------
Gary Thomas |
eCosCentric, Ltd. |
+1 (970) 229-1963 | eCos & RedBoot experts
gthomas@ecoscentric.com |
http://www.ecoscentric.com/ |
------------------------------------------------------------
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