[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gpsd-dev] PPS over USB
From: |
Jim Thompson |
Subject: |
Re: [gpsd-dev] PPS over USB |
Date: |
Mon, 7 May 2012 13:28:29 -0500 |
So is there an opinion among this esteemed group on the Trimble Copernicus-II?
http://trl.trimble.com/docushare/dsweb/Get/Document-501977/Copernicus-II_DS.pdf
I've got one of these on a module, which will mate to a matching connector on a
Xscale ixp425-based board, with the PPS signal tied to a GPIO.
Runs OpenWRT/GPSD, should have the integration done in < a week. (Hey, it's my
50th birthday Friday.. I might take the weekend off.)
The datasheet says "Stable indoor PPS in Stationary Mode", -160 dBm tracking
sensitivity, and PPS (Stationary Mode "indoor" @ –145dBm) of +/- 350ns.
Add a bit of interrupt latency, and we're probably still under 1uS.
Only 1+4 100Mbps Ethernet out of the board though. Does POE, so it's simple
to remote on a pole. Have solid outdoor cases, too. Adding 802.11 is trivial.
But not $30, either.
Jim
- Re: [gpsd-dev] PPS over USB, (continued)
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Eric S. Raymond, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Jim Thompson, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Gary E. Miller, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Gary E. Miller, 2012/05/07
- Re: [gpsd-dev] PPS over USB,
Jim Thompson <=
- Re: [gpsd-dev] PPS over USB, Hal Murray, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, tz, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Eric S. Raymond, 2012/05/06
- Re: [gpsd-dev] PPS over USB, dave taht, 2012/05/06
- Re: [gpsd-dev] PPS over USB, Gary E. Miller, 2012/05/06
- Re: [gpsd-dev] PPS over USB, Ed W, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Gary E. Miller, 2012/05/07
- Re: [gpsd-dev] PPS over USB, Eric S. Raymond, 2012/05/07