I'm using the COM3/DIO on the TS-722 board connected to the TS-7200,
the schematic I'm going off of is:
www.embeddedarm.com/documentation/ts-enc720-722-schematic.pdf
--- In skot croshere <> wrote:
>
> According to the 7200 Manual;
> http://www.embeddedarm.com/documentation/ts-7200-manual.pdf
>
> Pin 2 on the DIO1 header is ground.
>
> -skot
>
> On Jul 13, 2008, at 1:34 PM, linna_lisa wrote:
>
> > Hey,
> >
> > I'm using PortB as DIO with the direction register set up as 0x0F
so I
> > can use the first 1-4 as outputs and 6-9 as inputs (pin 5 is
ground).
> > The outputs work fine but when I'm trying to use the inputs all
the
> > pins are high even though they shouldn't be. For a while I was
trying
> > to figure out why my (simple) code wasn't working, then I put a
few
> > print statements in to see where it was hanging up and found it
was
> > going to a part of the code which was based on one of these inputs
> > being high. I knew the input shouldn't be high but just to make
sure i
> > took out all the connections to verify it couldn't possibly be
coming
> > from my circuit. With nothing going to any of the inputs the pins
are
> > a logic '1', which must be coming from somewhere else on the
board.
> > Anyone dealt with this before?
> >
> >
> >
>
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