Re: [Avr-eclipse-user] No source code when debugging using JTAG

[Thomas H. <th...@in...>]

Hello Lukás(,

sorry for the late reply, but I was busy the last few days.

With regard to your problem: Do you have the "Load symbols" flag set on 
the "Startup" Tab in the debug lauch configuration?



If you do not have a "Startup" tab, then you need to install the "C/C++ 
GDB Hardware Debugging" plugin. It is an optional part of CDT and it 
seems that with Eclipse Indigo you must have this installed to do JTAG 
debugging.



On 24.02.2012 19:32, Lukás( Záruba wrote:
> Hi,
>
> first I would like to thank all the people who are involved in the
> development and community around the avr-eclipse. You have done a great
> job porting AVR development to Linux world and this is very important to
> me. :)
>
> And here comes my question:
>
> I set up avr-eclipse plugin 2.3.4.20100807PRD into Eclipse Indigo
> release  20110615-0604 on Linux Ubuntu 10.10 64 bit
> Everything seems to be working fine except JTAG debugging. I manually
> start avarice server through the JTAG connection to the device
> (ATmega32) using JTAG mk I cable clone - works perfectly on windows
> using AVR Studio 4. Connection seems to be ok, signature loaded and
> waiting for connections.
>
> I prepared debugging configuration using avr-gdb settings from the wiki
> page (slightly changed due to different wizards in indigo but
> semantically should be the same). Set breakpoint at is set to "main".
>
> When I start debugging, eclipse is properly connected to the avarice,
> which communicates with AVR. Code doesn't break at main but runs. When I
> break it, I can read registers, explore the memory and see the break
> point in the disassembler window.
>
> The problem:
>
> I cannot see any code in the code window, just address into the program
> memory. It corresponds correctly with the content of the disassembler
> window. When I switch the debugging into the instruction mode, stepping
> works fine. But in the disassembler window, code is not included, just
> instructions. (in the screenshot on the wiki there are lines of code
> included).
>
> I suspected wrong settings of the source tab of the debug wizard, but my
> simple testing program is located in the root folder of the project and
> this folder cannot be added to the source lookup paths.
>
> Code is compiled with -g3 switch set in the tool chain.
>
> Do please anybody have an idea why this happens?
> Can it be related to the version of the Eclipse?
> Some bad settings?
> Can it be related to the location of the source file being in the root
> of project?
>
> I just don't know and I spent few days testing variety of different
> settings. I still suspect some wrong connection between the code and the
> runtime position in the program memory because of wrong settings of the
> project (or compiler).
> I don't know if it is of any significance but debugging of the C code
> for PC machine in the same Eclipse and workspace works fine.
>
> Thank you for reading this long thing and also thanks for any answer.
>
> Best
>
> Lukas Zaruba
>
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