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Re: Re: eCos with the existing boot loader problem
- To: shobhan Kumar Ayyadevara <shobana at in dot ceeyes dot com>
- Subject: Re: [ECOS] Re: eCos with the existing boot loader problem
- From: Jonathan Larmour <jlarmour at redhat dot com>
- Date: Tue, 17 Jul 2001 20:17:20 +0100
- Cc: ecos-discuss at sourceware dot cygnus dot com
- Organization: Red Hat UK Ltd.
- References: <3B545DC5.641AA6DA@in.ceeyes.com> <3B547009.51DFBC4B@in.ceeyes.com> <3B547085.855C48F8@in.ceeyes.com>
shobhan Kumar Ayyadevara wrote:
>
> Hello,
>
> I have a boot loader for my ARM 7TDMI based SOC board. It will just copy
> the image from the flash to the RAM and gives a jump to the predefined
> location. We were able to load any image built using ARM SDT 2.51 and
> multi-ICE. But we are not able to load the eCOS generated with RAM boot
> option. I am using cygwin, binutils 2.10, gcc 2.95.2 on Windows
> platform. Is it possible to use such kind of boot loader for eCos?
Probably. For a start, are you sure you are in supervisor mode when
execution is transferred. Secondly, disable CYGSEM_HAL_USE_ROM_MONITOR.
Finally check your entry point - it should be reset_vector. After that -
well, if you've got an ICE you should be able to debug it pretty well.
Jifl
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