From [ http://www.u-blox.cn/customersupport/gps.g5/ublox5_Fw5.00_Release_Notes(GPS.G5-SW-08019).pdf ]:
" UBX-AID-EPH and UBX-AID-ALM Messages for Satellite without valid Orbits When polling UBX-AID-EPH or UBX-AID-ALM messages, satellites without valid ephemeris or almanac data will return a complete UBX-AID-EPH or UBX-AID-ALM message with all data words set to zero. This doesn’t comply with the protocol specification. Furthermore, u-blox 5 receivers with firmware V5.00 and earlier can run into a floating-point exception when fed with such “empty” ephemeris. " Is that the cause :D Daniel Willmann wrote: > > > Yes and that's what ogpsd does already. It has been saving/restoring > almanac for months, ephemeris was disabled up until recently because > there was a bug that prevented the GPS chip from doing anything useful > after they were restored to the chip. > > ... ... > > Regards, > Daniel Willmann > > > _______________________________________________ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > > -- View this message in context: http://n2.nabble.com/thoughts-on-A-GPS-offline-tp2338403p2406454.html Sent from the Openmoko Community mailing list archive at Nabble.com. _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community