[Voyage-linux] GPIO on WRAP

(spam-protected) (spam-protected)
Mon Jun 5 15:22:15 HKT 2006


Hi William,
I am very interested in your approach, especially the
code. I am looking to having an i/o interface to my
WRAP for external monitoring and control, and will
appreciate any help in that direction.

solomon.


--- "William M. Brack" <wbrack at mmm.com.hk> wrote:

> I wanted to use a WRAP board to remotely control a
> couple of
> PC's (where "control" means "reset" and/or "power
> on/off"), so
> I constructed a a small board with opto-isolators
> which fits
> inside the WRAP case and connects to the LPIO
> connector on the
> WRAP, with a wire to connect internally to the
> 'reset' and
> 'power' pins inside the PC.  I then did some simple
> software
> which sets up the connector (i.e. changes the
> control register
> bits) for this use, and directly sets the
> appropriate bits in
> the GPIO register (i.e. no driver or interrupt
> handling required)
> to (remotely) accomplish it's functions.   It's all
> installed and
> working, allowing me to "control" a system in San
> Francisco from
> here in Hong Kong :-).  If anyone is interested, I'd
> be happy to
> share the circuit details, and perhaps take a photo
> of the board.
> 
> Bill
> 
> Solomon Asare wrote:
> > Hi All,
> > has anyone done any work on gpio that he will want
> to
> > share?
> >
> > Thanks.
> >
> > solo.
> 
> 
> 
> 
> 
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