I have FT2232 H and D adapters, please provide a configuration to test, I
can test it on STM32 and LPC2148 :-)
--
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info
On Nov 14, 2012 5:31 AM, "Peter Stuge" <[email protected]> wrote:
> [email protected] wrote:
> > That is a good one :) Mr "do not submit" pushed his own patch with
> > no feedback after just 2 days of waiting, breaking existing and
> > WORKING code...
>
> That's confusing. The change would of course not have been needed
> if existing code had been working.
>
> I hope you're interested in finding what the problem that you guys
> see is really about.
>
>
> > Please revert it ASAP
>
> Let's find and fix the problem instead. Reverting the change would
> just mean that openocd is broken in a different way. Neither
> brokenness is a useful state. The only meaningful action is
> to understand and fix the problem that you've encountered.
>
> It would have been great if you had already looked into the problem,
> since you have (made) hardware where it can be reproduced easily.
> Could you do that now instead?
>
>
> > while a proper version of the change will be worked on.
>
> Spencer mentioned that the problem might occur only with FT2232D,
> and not with FT2232H. This would explain why I did not see any
> problem in my testing; I only used FT2232H interfaces.
>
> I guess that you've (re-)read the appnote, so you know that the
> logical change (reset before selecting MPSSE) is as proper as FTDI
> doesn't guarantee, for all MPSSEs. As much as their documentation
> sucks, at least that example code is fairly clear. On the other
> hand, they do state that it is not guaranteed to be correct.
>
> Hopefully someone can contribute experience about why the reset is
> sometimes required for successful operation, and why it sometimes
> *hinders* successful operation.
>
> Meanwhile, I think the only other data point we may have access to
> is libftdi. I'll have a look there.
>
>
> //Peter
>
>
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