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Re: Debugging MIPS cpu with a probe, how?

To: TriKri <>
Subject: Re: Debugging MIPS cpu with a probe, how?
From: Markus Gothe <>
Date: Thu, 07 Aug 2008 14:47:45 +0200
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TriKri wrote:
> Hello!
> I have an embedded system, a box, with a MIPS processor on it,
> which I need to debug (stop and start the processor, tell what
> instructions it has previously executed, etc.). I also have an
> EJTAG probe, which I have connected between the computer's usb and
> the box, and written software for it. The software can communicate
> with the probe, which in its own turn can communicate with the box
> through the tap (test access port), by giving the tap certain
> instructions. It can also, through the tap, feed the MIPS processor
> with instructions, and read/write data from processor registers.
> The question is now, how can debug the processor? How do I stop it,
> do I have to send any certain instructions to it? How can I set a
> breakpoint (which I understand is a quite crucial point)? Can I use
> GDB with my software to help debug the processor and how do I do
> that?
> Thank you in advance! /Kristofer Krus
- --


Mr Markus Gothe
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