Am 06.07.2013 11:51, schrieb Andreas Fritiofson:
> On Sat, Jul 6, 2013 at 1:18 AM, [email protected]
> <mailto:[email protected]> <[email protected]
> <mailto:[email protected]>> wrote:
>
>     I was able to debrick my board. But this setup has a lot of issues
>     making it difficult to use for debugging. Twice during the debrick
>     process I got protocol errors and had to restart openocd/gdb.

I have lots of instability issue with one of broadcom-mips based board. 
After some testing i would say it is partially jtag adapter issue. 
Incorrect pull-ups/downs and, wrong cable and so on will couse different 
noise issues.

For example i have adapter which works perfectly on Atheros based mips 
at 100kHz. And same adapter regularly fail on Broadcom-mips even with 
lover speed: 10kHz.

>
> Did you see this before you lowered scan_delay? Because this is the type
> of errors I'd expect from a too low scan_delay setting. But really, I'm
> just guessing here. Someone with MIPS knowledge will be better suited to
> answer.
>
> /Andreas


-- 
Regards,
Oleksij

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