[GPS_Standard] New System Fun

[Graham Haddock]

Bob:

TAC-32 will tell you what commands are active.

Go to
VIEW GPS DATA
     RAW DATA

and look at the stuff that comes rolling by.
You can also create a text log of the commands for later viewing.
The first four characters tell what the command / response is.
They are the same for the command and the response.

You can then look up the command in the Oncore manual,
and it will tell you what the details are for the command to the
Oncore and the details and structure of the response.

Source for the manual and GPS command summaries and documentation:

http://tapr.org/software_library.php?dir=/gps/motorola/
     oncoreut_manual.zip 
<http://www.tapr.org/pphlogger/dlcount.php?id=tapr&url=ftp://ftp.tapr.org/gps/motorola//oncoreut_manual.zip>

http://tapr.org/gps_oncorevp.html

--- Graham

==


k7hbg at dslextreme.com wrote:
> Hi everybody;
>  My "ZAZ" system is still locked after about 24Hrs. I guess that I'll call
> it operational. Now for the fun part. You know... the "fiddeley bits" and
> add on thingies.
>  There are now two items in the unit that can talk RS232 and so, a switch
> to allow communications with both of them is needed. I decided to use a
> couple of chips to form a "muxer" just before the MAX232 converter to
> switch between the receiver and the controller. It works really well and
> has the added benefit of being "fail safe" in that it always is connected
> to the controller unless switched to the GPS receiver. Neat and pretty.
>  The next thing I came up against is that if the unit is powered on and
> connected to the PC. when turning on the PC., the com port fails. I'm
> using Windows-xp.
>  I decided to de-activate the MAX232 converter unless a PC is hooked to it
> and powered on. This converter chip does not have an enable pin but the
> MAX242 IC does and with only 2 more pins in that package it should fit on
> the perf board I'm using just fine, Digi-Stuff has them and a couple are
> on the way.
>  I decided that I'll also use a little LCD display with a controller chip
> to pick up and display some info from both the receiver and the
> controller units.
>  With many thanks to Graham / KE9H for his help I was pointed in the
> direction of among others, the TAC32 com software. Works just dandy. He
> had pointed out to me that the Oncore+ receiver need a bit of talking to
> to persuade it to output streams of data.
>  Looks like I'll have to discover what data the com program sends to the
> receiver to get it perking.
>  If anybody can steer me in the right direction for this info I'd be most
> appreciative!
> Best Regards to all and Hoppy Easter!
>  Bob K7HBG
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