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Re: [lpc2000] Re: JTAG debugging tools

2005-12-10 by Dominic Rath

Hello,

On Saturday 10 December 2005 11:44, householder_lpc wrote:
> Thank you for a very clear and comprehensive answer.
>
> It it so that, if you use Crossworks, you don't use OCDRemote anymore,
> so Crossworks bitbangs jtag commands over LPT1 itself? Because
> OCDRemote doesn't support hardware breakpoints...
>

Yes, Crossworks bitbangs the parport itself, you don't need OCDRemote anymore. 
But OCDRemote supports hardware breakpoints, just search recent posts to this 
group on the topic.

> Can Crossworks set as many breakpoints in Flash as you want? Are these
> software breakpoints, or hardware breakpoints?
>

You can't have more than two hardware breakpoints on an ARM7. That's a limit 
of the core, not the debugger. You can only set hardware breakpoints inside 
the flash. If you want software breakpoints, too, there's only one hardware 
breakpoint left, the other one is used to implement software breakpoints (I 
don't know how this is supported by the various debuggers, but that's what 
the ARM7 debug support is like).

> Thank you !!
>

Regards,

Dominic

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