Curt,

Frederic Bouvier wrote :
> What option do you use to make it working ? I tried
>
> --AV400=serial,out,5,com1,9600
>  and
> --AV400=serial,out,5,com1,4800
>
> without luck. Assuming the GPS unit interface is set to "Aviation In",
> and not "GARMIN"
>   

I managed to make it work under Windows with my Garmin GPS III Pilot.
For that, I had to restore the \r you removed from each sub messages.

I don't understand why you removed them because the CVS comment implies
they are needed, or the stream is opened in text mode under Linux,
adding an undesired one.

Under Windows the stream is opened in binary mode so \r is needed in the
code. I won't commit my change before knowing your thought about that.

When the line ending issue is cleared, transmission has to be done at
9600 bauds, 8 data bits, no parity. The channel parameters only set the
baud rate, so one has to enter the following command at the window
command prompt before starting fg :

c:\> mode com1 data=8 parity=n

that should display the new parameters. This command doesn't work when
the port is already opened.

Then the GPS Unit has to be put in simulation mode ( menu in the
satellite page ), and the 'Aviation In' protocol must be activated in
the Interface page of the system setup.

Finally start fgfs with the option

--AV400=serial,out,5,com1,9600


There is a handy freeware under windows to monitor serial ports :
http://www.sysinternals.com/Utilities/Portmon.html

-Fred

-- 
Frédéric Bouvier
http://frfoto.free.fr         Photo gallery - album photo
http://www.fotolia.fr/p/2278  Other photo gallery
http://fgsd.sourceforge.net/  FlightGear Scenery Designer



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