[Tinyos-help] debugging T2.1 code with AVR Studio

[Andrey Gursky]

Janos,

sorry for this big delay, I haven't yet setup cygwin under Windows.

As I'm using micaz and iris, I've not noticed, that I could successfully
debug only on micaz. So I tried to debug iris under Linux and found out
it is impossible with olimex USB-AVR-JTAG I have. I searched on similar
adapters but with support of avr jtagice mkII. It seems there are no
cheep (<<300+$) solutions. I've found only:
http://www.embedded-projects.net/index.php?page_id=163
But it is only in start phase. The page is in German but there is one link:
http://planete.inrialpes.fr/~francill/stuff/AvrJtagIce.pdf
where tinyos is used :)

Janos, maybe you or someone else knows about other opportunities to
debug atmega1281? Or there is really all years, atmega1281 is available,
no other way to do this without atmel mkII?

I heard, that for gdb should be used -gstabs. Interesting, how it is in
relation to dwarf-2.

Thanks and best wishes,
Andrey



Janos Sallai wrote:
> Andrey,
> 
> It seems to me that it's stepping properly. The .extra tells nesc and
> gcc to compile without inlining and without optimizations, and generate
> dwarf-2 debug information with source paths in windows format.
> 
> It will not work under linux (because of the windows-style paths), and
> it won't work with gdb because dwarf-2 is only partly supported
> (whatever that means).
> 
> I would be happy to hear back from you regarding your experience with
> debugging in AvrStudio, though.
> 
> Janos
> 
> -----Original Message-----
> From: Andrey Gursky [mailto:andrey.gursky at online.ua] 
> Sent: Wednesday, September 10, 2008 2:33 PM
> To: Janos Sallai
> Cc: tinyos-help at millennium.berkeley.edu
> Subject: Re: [Tinyos-help] debugging T2.1 code with AVR Studio
> 
> Hi Janos!
> 
> This is very interesting. Thanks in advance!
> 
> I'm using iris and micaz. I tried to use ddd in GNU/Linux and I am able 
> to set breakpoints only at some lines in .nc that are be mapped from .nc
> 
> to app.c and debug the application with JTAG. But with "step" ddd/gdb 
> doesn't really process only 1 line of code but goes throw the calls (so 
> it works as "next").
> 
> Will it be possible under Windows with AVRStudio to step properly throw 
> the code? And is this possible to use your .extra with or without 
> changes to debug/simulate under GNU/Linux?
> 
> Thanks,
> Andrey
> 
> 
> 
> Janos Sallai wrote:
>> For those discontented with gdb and in desperate need of visual
>> source-level debugging support for TinyOS: I have added support for
>> debugging iris applications using AVR Studio. 
>>
>>  
>>
>> To use it, first download and install AVR Studio (
>> http://www.atmel.com/dyn/Products/tools_card.asp?tool_id=2725 ). 
>>
>>  
>>
>> Then, check out the CVS head, or drop the file avr-studio-debug.extra
> (
> http://tinyos.cvs.sourceforge.net/*checkout*/tinyos/tinyos-2.x/support/m
>> ake/avr/avr-studio-debug.extra ) into support/make/avr/ in the TinyOS
>> 2.1 release tree. 
>>
>>  
>>
>> To compile an ELF image that can be loaded with AVR Studio, type
>>
>>  
>>
>> make iris avr-studio-debug
>>
>>  
>>
>> Finally, launch AVR Studio, open the main.elf file under build/iris/.
>> Choose your debug platform (simulator or JTAG emulator) and your
> device
>> (ATMega1281 for iris) then click Finish. If everything goes well, AVR
>> Studio will open the source code of RealMainP.nc and position the
> cursor
>> at the entry point of the program and you are ready to visually debug.
>>
>>  
>>
>> Beside the iris mote, this should work with mica2/micaz as well. Just
>> substitute iris above with your favorite AVR-based mote platform. 
>>
>>  
>>
>> Janos
>>
>>  
>>
>>
>>
>>
>>
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>>
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