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

[David Gay]

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
> that 

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
address@hidden