--- In "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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