Saturday, April 12, 2008

[oopic] Re: oSerialH on ooPIC-R, TTL-Level or true RS232?

OK, I just got an inverter. My understanding is that the RS232 on the
ooPIC is connected to the inverter in the following manner:

ooPIC-R Pin Inverter Pin

2 3
3 2
5 5


Is that the correct pin configuration? What about the other pins?

thanks

--- In oopic@yahoogroups.com, "dan michaels" <oric_dan@...> wrote:
>
> --- In oopic@yahoogroups.com, "design.wonk" <design.wonk@> wrote:

> >
>
> > >
> > > You should be able to connect the oopic-r board to other logic-
> level serial ports, but you will still need an inverter on the remote
> end.
> > >
> >
> >
> >
> > If the remote end is also 0-5V, then I would not need the inverter -
> > is that correct?
> >
>
>
> No, the remote end would still need a logic-level inverter, unless you
> were using a software UART and were able to deal with inverted input.
> Inversion is orthogonal to voltage-levels used [ie, they are
> completely independent issues].
>

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