[time-nuts] USB Interface, legacy Software
Michael Blazer
mblazer at satx.rr.com
Thu Mar 8 00:04:27 UTC 2012
I've been using Delmore GPS receivers for several years. They have a
driver (http://support.delorme.com/questions.php?questionid=24
<http://support.delorme.com/questions.php?questionid=24>) for Windows
that will install it as a standard serial port sending NMEA messages.
The older serial Earthmates can be powered by applying 5 volts to pin 9
(return to pin 5).
As long as the software communicates thru the standard Com drivers,
Serial to USB converters should work OK. I've been able to tap the USB
5 volts and power the serial device (as above). Just look for a
converter that is in a hard plastic case, not molded. If found the
Gold-X adapters are pretty consistent working with legacy software.
Mike Blazer
San Antonio, TX
On 3/7/2012 10:48 AM, Joe Leikhim wrote:
> I have a software program, no longer supported, which requires two
> RS232 serial com port interfaces, one to communicate with a sensor
> (signal strength collection receiver) and the second to accept serial
> data from a GPS.
>
> The laptop computer I am using has only one RS232 Com port which I
> must use with the sensor due to incompatibility with USB to serial
> converters I have tried. This leaves the USB for the GPS input. I am
> assuming that the GPS string should be acceptable as I do nor believe
> the software needs to handshake with the GPS.
>
> I would like to use a "Delorme" USB type receiver on the USB port. Can
> anyone recommend a software add on that will make this type receiver
> appear as a standard RS232 Com port to my software?
>
> Thanks
>
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