Re: [Gpsbabel-misc] GPSBabel error while trying to connect to DG-200

[Robert L. <rob...@gp...>]

On Thu, May 10, 2012 at 6:05 PM, Ofir Shemesh <she...@gm...> wrote:

> hi,
> i'm trying to connect GPSBabel (version 1.4.3) to GlobalSat *DG-200 -* it
> is on the device list.
> bu i'm getting an error!
> the error say: Unsupported serial speed: 230400
>
> here is the full log:
>
> gpsbabel -D9 -t -i dg-200,erase=0,erase_only=0 -f COM7 -o
> gpx,suppresswhite=0,logpoint=0,humminbirdextensions=0,garminextensions=0 -F
> C:/Users/Admin/Desktop/wpt11.gpx -o gpx -F
> C:/Users/Admin/AppData/Local/Temp/qt_temp.jl2192
>
> options: module/option=value: dg-200/erase="0" (=default)
>
> options: module/option=value: dg-200/erase_only="0" (=default)
>
> Translated port name: "COM7"
>
> GPSBabel Version: 1.4.3
>
> Unsupported serial speed: 230400
>
> Error running gpsbabel: Process exited unsucessfully with code 1
>
>
> ???
>
> why can't i connect
>
> ???
>

Bummer.  I've added the original author of the DG-200 support.

230Kbps is indeed an uncommon speed.   The original UARTS on the original
PCs just plain couldn't do it, but it's not that hard on modern hardware.
My read of the Windows serial doc says that speed isn't supported, probably
owing to Windows decisions that are stuck in the 80's.

http://msdn.microsoft.com/en-us/library/windows/desktop/aa363214(v=vs.85).aspx
(It looks like they just made up bit rates above 115.2K; nobody used clock
rates like that on commodity UARTs.)


However, it seems unlikely that DG would build a device that doesn't work
on Windows (that never happens...it's usually quite the opposite) so either
our decision to drive the device only at 230K is bad or gbser_win.c

Nicolas, what do you think?

RJL