[ECOS] FW: Re: Strange Problems !!!
Harsha D
harshad@sanyo.co.in
Tue Sep 13 08:36:00 GMT 2005
Keshav,
Hey Thanks, it was stack pointer problem. In my case the sdram is distributed between
ARM and the hardware video encoder in banks. Which i had not taken care of, resulting in
stack pointer dangling.
Now my redboot is working fine...
Thanx again
harsha
--------------------------------------------------------------
harsha,
check if the stack pointer is properly set.
-keshav
--- Harsha D <harshad@sanyo.co.in> wrote:
> Hi
>
> Currently i have a ram version of redboot running on
> my ARM platform.
> (Redboot prompt is visible).
> But none of the commands (like help, version, load)
> were working(redboot
> hangs). On debugging
> i found that it was hanging at
>
> (cmd->fun)(argc, argv);
>
> in ecos/packages/redboot/current/src/main.c, after
> parsing the command.
>
>
> So for debugging i put a printf inside the do_help
> function (in
> main.cpp), to see if it was being called,
> surprisingly help command worked!!!
>
> void do_help()
> {
> ..
>
> diag_printf("\nInside do_help");
>
> ..
> ..
> }
>
> I tried removing the above printf. and help didnot
> work !!! I tested
> it for 2-3 times.
>
> 1.
> Now i am worried as to how this printf is making the
> difference in
> getting the output.
> I think this must b the case for other commands too.
>
> 2.
> Also i find that sometimes, the parse command looses
> the argument value.
> i.e. although
> "help" string is being sent when calling, inside the
> function the
> argument has no value
> at all
>
> I am using gcc ver 3.2.1. Please throw some light
> on the above issues.
>
>
> regards
> harsha
>
> --
> Before posting, please read the FAQ:
> http://ecos.sourceware.org/fom/ecos
> and search the list archive:
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>
>
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