[Thumbgps-devel] Build vs. modify vs. what should we be doing anyway?

Dave Taht dave.taht at gmail.com
Mon Mar 12 22:40:43 EDT 2012


On Mon, Mar 12, 2012 at 7:13 PM, Eric S. Raymond <esr at thyrsus.com> wrote:
> Chris Kuethe <chris.kuethe at gmail.com>:
>> ublox antaris4 (and probably everything newer) has on-die usb and
>> implements the abstract modem class. but 1PPS isn't transmitted over
>> usb.
>
> Annoyingly, it probably could be.  That modem model pretty much has to have
> DCD and RI events.

Perhaps simply a real usb microcontroller with spi or i2c then driving
usb-2.0 for real...

http://www.linux-usb.org/ezusb/ - 16 bucks and WAY too  many pins...
but it should be possible to do much better than that after looking
harder.

I've also always got a kick out of the propeller chip...

http://www.parallax.com/Store/Microcontrollers/PropellerChips/tabid/142/CategoryID/18/List/0/Level/a/ProductID/411/Default.aspx?SortField=ProductName%2cProductName

Atmel's AVRs are also of interest...

http://www.olimex.com/dev/avr-usb-162.html

http://www.atmel.com/devices/at90usb162.aspx

> --
>                <a href="http://www.catb.org/~esr/">Eric S. Raymond</a>



-- 
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://www.bufferbloat.net



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