[Tinyos Core WG] Meeting: September 27

[Joe Polastre]

Not all I/O's have the capability of being both input and output.
Just because the pin is not input does not mean it is output, and vice
versa.  If my pin is an ADC (and configured as such using something
like ADC.bindPort by another module in the system), such as on the
MSP430, and I call "isInput()" and it returns false, what does that
mean?  The pin is NOT output!

Furthermore, if I care about whether a pin is output, writing a statement like:
if (!call GeneralIO.isInput()) {
  //
}
is not a natural method or intuitive of programming.



-Joe

On 9/26/06, Jonathan Hui <jhui at archrock.com> wrote:
>
> Is this to support cases where a pin is set to neither an input or
> output? e.g. module-func? It's easy to add. But how do you set it to
> something other than input or output? Is this microcontroller specific?
>
> --
> Jonathan Hui
> jhui at archrock.com
>
> Joe Polastre wrote:
> > Please add isOutput() in addition to isInput().
> >
> > On 9/26/06, Jonathan Hui <jhui at archrock.com> wrote:
> >>
> >> Checked in to the devel branch.
> >>
> >> --
> >> Jonathan Hui
> >> jhui at archrock.com
> >>
> >> Philip Levis wrote:
> >> > On Sep 26, 2006, at 9:54 PM, Jonathan Hui wrote:
> >> >
> >> >>
> >> >> Updated TEP117.
> >> >>
> >> >> - added UART
> >> >> - updated interfaces to match tinyos-2.x (though SpiByte still returns
> >> >> error_t in the code).
> >> >> - added isInput() to GeneralIO.
> >> >>
> >> >> Is there something else that we agreed to update before looking at it
> >> >> again?
> >> >>
> >> >
> >> > I don't see it in the repository.
> >> >
> >> > Phil
> >> >
> >> _______________________________________________
> >> Tinyos-2.0wg mailing list
> >> Tinyos-2.0wg at Mail.Millennium.Berkeley.EDU
> >> https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-2.0wg
> >>
> >>
> >
>