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Harald Welte laforge at gnumonks.orgHi Holger,
On Mon, Aug 15, 2011 at 03:16:56PM +0200, Holger Hans Peter Freyther wrote:
> I have a stupid schematic question. I read section 6.2 of the SAM7 datasheet
> (as in the git tree) and it mentions that besides TST high also
> PA0, PA1 and PA2 needs to be high, and PA0, PA1 should not be low as this
> leads to unpredictable results.
Yes, this is correct.
> So I wonder about the following:
> - PA0 is not connected, default state should be high
> - PA1 is connected with a trace that leads to PA6
> - PA2 is connected with a trace that leads to PA4
>
> will PA4, PA6 work like a pull down (I am not sure of Table 10-3)?
All GPIO of the SAM7 have internal pull-up resistors which are enabled
at boot. Thus, they should all be in high state.
--
- Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/
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