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Re: [avr-gcc-list] New Issues: AVRStudio and debugging with .COF Files

From: David Gay
Subject: Re: [avr-gcc-list] New Issues: AVRStudio and debugging with .COF Files
Date: Fri, 13 Jun 2003 17:26:54 -0700
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030314

Theodore A. Roth wrote:

On Sat, 14 Jun 2003, Ralph Mason wrote:

:) My experience is that Avarice provides good if not somewhat slow debugging
:) for me.  I really need to be able to set the JTag speed to about 2Mhz.

Well, if Atmel would tell me how to do that...

I don't think AVR Studio allows more than 1MHz, does it? And to use 2MHz, you would need to be running your processor at 8MHz.

:) Some stuff that would be cool would be if it would save one HW bp for single
:) stepping so when you step over a statement it's fast.

This may be a limitation of how gdb works internally. In the end, I'm
not sure that gdb/avarice will ever be as fast as avrstudio because of

Actually avarice does use one of the HW breakpoints for that purpose. However, gdb won't take advantage of that if you haven't done:
  set remote step-over-range-packet enable
My scripts for avarice and avr-gdb (ice-gdb) set this and the other useful gdb options, but ice-gdb didn't work in the WinAVR distribution last time I checked (because I assume an avr-gdb compiled for cygwin, and WinAVR has avr-gdb compiled for mingw (aka sortof regular Windows)).

and the inside information which Atmel has which I lack.

Well you can use programs to "spy" on the serial port commands sent by AVR Studio. At this point, I don't think there's any command that AVR Studio sends that we don't know about.

David Gay

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