[time-nuts] GPSDO standard interface?

[Didier Juges]

If you want to see how to generate TSIP message, I can post the code to my Thunderbolt simulator. Its in Visual Basic but it will show you an example.

It generates the primary and secondary packets.

You can download the software from my web site www.ko4bb.com

Didier KO4BB


On June 26, 2014 12:01:29 PM CDT, Mark Sims <holrum at hotmail.com> wrote:
>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? 		 	  
>		  
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