Labview PDA Module and GPS

[vici4u]

Hi, I am using a HTC P3600 PDA and I'm trying to develop a Labview PDA application that reads the GPS data from the built-in GPS receiver. I want to know how can I get the data from the GPS receiver using Labview.

[PhillipBrooks]

On the HTC Wiki, one comment/post suggests that the GPS is enabled full time after installing the ROM upgrade, and that it is available as "COM9".

If the built-in GPS is NMEA compatible, you should be able to receive strings from the GPS module using VISA.

[mikealder]

Have a look at a document I attached in this thread http://forums.ni.com/ni/board/message?board.id=170&message.id=227405#M227405 it will show you the basics for parsing the NMEA data, you will need to re-code the front end to read the serial data from the built in GPS, rather than the Bluetooth I used for that application.

The biggest problem with the HTC based devices is actually starting the GPS hardware, it can prove very hit and miss, I use Fransons GPS Gate to start/ stop the GPS hardware and set a virtual com port in Fransons application that a simple read serial port can obtain the data from, once you have the data getting into the application the rest is easy, simple string parse will suffice.

The GPS hardware is certainly NOT active all the time as this would hammer the battery, it must be started and stopped which is the "fun" part, the actual output is indeed NMEA - Mike