Future debug board and deprecating write-only
Andy Green
andy at openmoko.com
Tue Mar 11 15:53:30 CET 2008
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Somebody in the thread at some point said:
> Andy Green wrote:
>> Wah you really think we can't "pull" moving a few small components in a
>> proven configuration on to another board "off"? Of course we can do it.
>
> They're not *that* small and AFAIK not that cheap either ;-)
Neither is the NOR we get rid of interestingly enough, Sean told me.
The FT2232Ds are $3.80/1K and I am sure FIC will get a much better deal.
http://www.mouser.com/Search/ProductDetail.aspx?qs=vnwGVgFuQiZDCvvilrqK0Q%3D%3D
> It would cost about 200mm2 PCB surface in total. (If the NAND/NOR in
> GTA > 02 has good protection, we don't need an extra chip for that
> anyway, so that space would be saved either way.)
Protection is less of an issue if the user can always recover the
device, make new bad block table, etc.
> But yeah, let's see what physical dimensions we'll come up for GTA03
> and such first.
We can lose the debug connector and stick the extra IO elsewhere as
discussed before too, remember -- no more nonstandard flat cables either.
There is spare IO from the FT2232D so we can drive nRESET from the host
too, getting rid of the button.
- -Andy
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