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Re: does eCos/GNU debugger supports EmbeddedICE


We wrote the program ourselves.

redboot/ecos does has of this functionality in some form.  You should look
at it.


Good Luck,
Matthew


Shaojie Wu wrote:

> -----Original Message-----
> From: mgerlach [mailto:mgerlach]On Behalf Of Matthew H. Gerlach
> Sent: Wednesday, September 19, 2001 6:36 PM
> To: Shaojie Wu
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: does eCos/GNU debugger supports EmbeddedICE
>
> Hi matthew,
>
> You mentioned you do use gdb to load and run a program in ram
> that performs the flash programing. SInce I never used that
> kind of program before, Could you provide me more detailed
> information about that program? Where can I find it? and how to
> use it?
>
> Thanks, have a good night.
>
> Shaojie Wu wrote:
>
> > Hi
> >
> > Thanks for your reply, my understanding is that by using
> > on-chip embeddedICE, JTAG embeddedICE interface unit and
> > GNU gdb, I could  download our program, containing ecos,
> > into ram, and the program is run and debugged out of ram.
> > In order to do all of these, we do not need to pre-build
> > any  program (like angel) into the arm chip core. Am I
> > right?
>
> That sounds right to me.  We don't have anything like angel in our
> core.  We do have a simple boot code that at least puts the processor in
> a known state.  Before we had a boot, we were able to use gdb to write a
> few registers in the arm core to program the memory controller so ram
> would work.
>
> >
> >
> > I also have some other questions
> > 1. which command of gdb you are using to program the flash
> > memory? Does gdb has a command for flash downloading?
>
> We don't use gdb to program flash.  We do use gdb to load and run a
> program in ram that performs the flash programing
>
> >
> >
> > 2. Have you ever tried to modify  the redboot and make it run
> > on your custom board?  If not, without the support of redboot,
> > how could you use eCos to write the code. ( seems lots of functions
> > do need the support of redboot running on board)
> >
>
> We don't use redboot.  It wasn't available when we started.  We have our
> own small boot code that does very little.
>
> >
> > Thanks again.
> >
> > Shaojie


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