I don't see any polling issues. I did have to update my xtensa gcc
toolchain for a newer GDB (version 7.10 works great). Older versions that
were default in esp-open-sdk ( I think it was 7.5?) had issues with stack
frames.
- Thomas
On Mon, Feb 22, 2016 at 4:25 PM, Angus Gratton <[email protected]> wrote:
> Hi Thomas,
>
> Thanks for cleaning this up and submitting it! I got busy with
> esp-open-rtos stuff and I just never looked back to it.
>
> On Mon, Feb 22, 2016 at 01:12:05PM -0700, Thomas Schmid wrote:
> > I just took their code and forward ported it to the latest openocd master
> > branch. Hopefully, we can consolidate the different efforts and add it
> into
> > mainline openocd development instead of side projects.
>
> Hurrah! Yes, I always intended to submit it here (I posted on the list
> last year) after it got a bit more stable.
>
> > I tested it with the Sparkfun ESP8266 Thing and a Olimex ARM-USB-Tiny-h.
> I
> > can step, next, and set breakpoints.
>
> The sticking point I had (which it's possible @sysprogs already fixed) was
> always maintaining/establishing the JTAG connection during/after a reset.
> The debug interface would lose "sync" with the CPU very often (poll errors,
> etc.). Does this part work OK now?
>
> > Loading of an image only works
> > partially, as it doesn't seem to be writing the external SPI flash.
>
> There's no SPI flash driver yet so that's to be expected I guess. We could
> write one for ESP8266 fairly easily, as there are SPI flash functons in the
> boot ROM that the debug interface can call directly to perform erase
> operations, write operations, etc.
>
> I'll try and find time to test this patch a bit myself, but it might be
> better left to other people tbh. :)
>
> Thanks again for moving it along!
>
>
> Angus
>
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