Home-Brew IR port. Was - Please Ignore RS232 message. The subject should read IrDA port... Sorry

Alan Ide gamebeavis at gmail.com
Fri May 11 19:39:47 CEST 2007

Now that is something I did not see. If the UART is IrDA-compliant, and it
can be freed up that eliminates most of the headache. However if it cant be
freed up, and all 3 UARTs are being used, that doesnt leave us with many

On 5/11/07, Joe Pfeiffer <jjpfeifferjr at comcast.net> wrote:
> Werner Almesberger writes:
> >I wrote:
> >> You could of course try to dual use some UART. I wonder why LIRC
> >> requires a UART. Does it use it to generate the 38 kHz carrier ?
> >
> >Ah, postings crossed. Well, given that you have real PWMs, you
> >could also consider dual-using one of these, in addition to
> >dual-using a UART. It all depends on which current-use item you
> >find most convenient to sacrifice :)
> Two thoughts -- first, one wonders if RTS/CTS handshaking is really used
> by the GPS?  Maybe the pins could be wired together on the GPS, or
> even just wire RTS high?
> Second, if either that's feasible or the pin can be dual-used, the
> spec sheet says the UART is IrDA-compliant.  So if it can be used at
> all, it ought to be possible to hook up an LED and have it work.
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