Hi Mark, Thanks for the response. I'll take a look at heathgps.cpp. I had hoped not to have to actually look through code to divine an interface, but if that's the way it is, then OK. I am planning on the output of at least position, corrected phase error, DAC value, ambient temperature, and a few other things. I also see a need to read and write the PID gain and damping factors, but that may just have to be a custom tty interface. It may be that I need to have a pass-through mode to give direct access to the receiver for triggering site survey, etc. If this turns into a bag of worms, I'll just continue to use a modified version of Bert's interface.
I'm afraid you'll have to look elsewhere for someone to port LH to Linux. Bob ________________________________ From: Mark Sims <hol...@hotmail.com> To: "time-nuts@febo.com" <time-nuts@febo.com> Sent: Thursday, June 26, 2014 12:01 PM Subject: [time-nuts] GPSDO standard interface? Yes I have... I have built several sensor type boards that use an ATMEL chip as the processor. They output data in a TSIP packet format that tricked up versions of Lady Heather can control and monitor. The most complicated one is probably a LED/Battery analyzer device that measures voltages, currents, intensities, color spectrum, etc and can PWM a 90 amp power FET. The TSIP requirements for a GPSDO can be fairly simple. Look in the heathgps.cpp file in the Lady Heather source code to see what messages are important. You don't need to implement all (or even most) of them. The more you implement, the better Lady Heather can control it. Lady Heather basically wants to see the primary and secondary timing messages every second. It uses those messages to trigger requests for other info/status messages... a different message each second. So, start with outputting the primary and secondary timing messages every second. You probably also want to output the lat/lon/alt message. Then add support for other messages that you want to see/control. As far as Windows is concerned... Lady Heather is open source. Feel free to port it to Linux, etc... it should not be too difficult... but many people have said that they would do so, but so far nobody has. If you want to do so, I can send you the code that I have for version 4.0. It has some changes to the plotting code and TSIP parser that make it easier to tweak for different data logging applications (such has my LED analyzer). --------------- That sounds good but have you figured out how to implement this? _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
