[Thumbgps-devel] PPS over USB Serial can work

[Eric S. Raymond]

tz <thomas at mich.com>:
> http://www.sparkfun.com/products/10277
> 
> It doesn't support CTS/DCD/RI "out of the box", but the source is
> there.  We can name it what we want (there is the vendor/product ID
> problem - we should be able to get one, but the text string can be
> uniquely ours).
> 
> The base code (at github) has a delay to buffer characters with a
> timeout, but that can be eliminated or short circuited for the "$"
> which begins NMEA sentences.
> 
> I haven't seen all the LUFA library, but going from the ICP interrupt
> to sending a DCD shouldn't be that hard.
> 
> more here - I haven't found DCD support yet but it shouldn't be hard to add.

That is interesting, if only because we can get at the firmware. Worth
keeping in mind - it now looks like "Plain Jane" will work, but if it doesn't...
-- 
		<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>