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Re: API for ARM7TDMI ?


Bruno:


On Fri, Sep 13, 2002 at 04:34:09PM +0200, calce wrote:
> hello,
> i'm trying to implement a debugger for an ARM7TDMI core with
> embedded ICE and JTAG. Has anybody done this before and can you
> tell me how much time it took? is there an API in gdb which
> I could use for this purpose. Any hints and tricks are welcome.
> Im evaluating if I should develop the debugger by myself or
> with existing code.

Not sure exactly what you're asking for here.

If you're trying to implement a debugging agent in the target, then
you won't do much with embedded ICE and JTAG--- you'll communicate
over a serial or ethernet port, and run some code in the target to
handle breakpoints, etc.  See http://sourceforge.net/projects/gdbstubs
for a basic debugging agent architecture for gdb, it doesn't (yet!)
support ARM7TDMI.

If you're talking about using an external piece of hardware to drive
the JTAG port, then both ARM's tools and Abatron's BDI2000 are well
supported by gdb already--- no need to implement anything.


HTH,


b.g.
-- 
Embedded Linux and embedded GNU development and training services.
See http://billgatliff.com for details.


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