Re: Aw: Re: Re: Re: [ECOS] Debugging via JTAG - problems?

[Ilija Kocho <ilijak@siva.com.mk>]

On 26.04.2013 15:00, Lukas Riezler wrote:
> Hello Ilja & Edgar!
>  
>> I strongly advise you to switch to CVS. Although it is not a release it
>> is pretty much stable. eCos CVS is not a development repository but
>> rather a rolling release.
>  
> Okay, I'll switch to the CVS source during this weekend :)
>  
>> It would be best to start with configuration that only employs on-chip
>> memory. I do not know your configuration (CDL, memory layout) so I shall
>> talk in terms of Kinetis and STM32 port. They have SRAM startup type
>> that is intended for usage with JTAG. Provided that your controller has
>> enough internal RAM this is the simplest way to bring system to life and
>> JTAG should work from scratch. ROM startup that uses only on-chip ROM
>> ans RAM is almost equally easy provided that you have a tool to program
>> controller's flash.
>> To sum up try to build system with on-chip memory first.
>  
> I've changed the startup type to SRAM.
>
> Now it looks a little bit better: I reach hal_reset_vsr() in the architecture HAL.
> The problem I have now is that I hang at the line
>  
> __asm__ volatile("swi");

This exception should pass without problems, but your debugger may have
problem stepping through it while continual run may pass. Have tried to
put breakpoint(s) after this line?


>  
> Does this indicates a specific matter I have not attended to?
>  
> Please don't get me wrong - I'm not too lazy for researching solutions for my problems. But in this theme I don't really know how I could handle my problems. So thank you very much for all your previous answers!
>
> Have a nice weekend, Lukas
>


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