That's better...
I even found some schematics tonight.
Thank you for your quick reply!
/Janne
--- In "Jesse Off" <> wrote:
>
> --- In "jan_fristedt" <jan_fristedt@> wrote:
> >
> > Hi again,
> > For some reason I can't get the TS-7400 GPIO to work.
> > When I write a pattern to the outputs and read it back it seem like
> > even and odd bits are connected together. I have verified it with my
> > oscilloscope. When I write 00 to a pair of bits I read back 00 and the
> > pin level is close to zero. When I write 01 or 10 I read back 11 and
> > the pin level is ~1,8V, close to 50%. When I write 11 I read back 11
> > and the pin level is close to 3,3V.
> > I have tried both with pointers and peek/poke.
> > /Janne
>
> Keep in mind if you are using the TS-9441, this device loops back all
> GPIO for purposes of testing. Also, all the ADC's are fed with a
> reference voltage for calibration.
>
> //Jesse Off
>
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