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Ilyas Khan
10th November 2004, 04:56 AM
I want to connect a Holux GM-200 serial GPS unit to my M1000
The pin config for this device you is as follows:
Pin 1 is 5volts + supply
Pin 2 is TX
Pin 3 is RX
Pin 5 is Ground
Pin 9 is DGPS in
All other pins r not connected. I also need to now what settings I need to have the GPS receiver set to i.e. do I select SIRFstar II or NMEA settings I have a lead that I made and now am able to connect to the PC through the serial port. Using this I have now accessed the menu so that I can make relevant changes. i am using a programm called SiRFstar Demo 3.30a with this i can directly programm the GPS to give what ever info i want.
I will be using Tom tom navigator software and this has selection in drop down menu for GM-200 how ever I am not sure if the setting should be in
d*m’s’’ or d* m.m’ or d.d*
* is degrees – my keyboard doesn’t seem to have that symbol
I am connecting via serial cable COM port 1 I have disabled infa red so the port is free. My soldering is okay but i am not sure if my connections to the PDA are correct- is there a lead that can do this for me. or will i have no alternative but to recheck my connections on my home made lead.

Please help

cruisin-thru
10th November 2004, 03:49 PM
Make sure you disable beams in settings/connections/beams, choose nmea 4800 and com 1. You will also need to disable external keyboard driver if installed.

LumpiStefan
10th November 2004, 04:47 PM
How dou you connect the serial GPS to your device?
If you use a serial sync-cable you have to insert a null modem cable.
You have to ensure that tx goes to rx and rx goes to tx that they can talk to each other....

Look here:
http://www.lammertbies.nl/comm/cable/RS-232.html#pins
and here:
http://wiki.xda-developers.com/wiki/Connectors

HTH

Stefan

Ilyas Khan
11th November 2004, 12:44 AM
I have made a lead consisting of a serial sync cable and a RS232 connector lead which connectes to a Holux GM-200 serial GPS unit to my M1000
The pin config for this device you is as follows:
Pin 1 is 5volts + supply
Pin 2 is TX
Pin 3 is RX
Pin 5 is Ground

All other pins r not connected. I am connecting via serial cable COM port 1 I have disabled infa red so the port is free. I have recieved email from holux that TomTom will be able to read the sentence from NMEA standard setting. and extract relavent data. I will swap over TX and Rx as these were connected wrong. I will also purchace a null modem or make one from connectors from maplin.

Ilyas Khan
11th November 2004, 01:24 AM
Simple RS232 null modem without handshaking
RS232 null modem with loop back handshaking
RS232 null modem with partial handshaking
RS232 null modem with full handshaking

Which one?

LumpiStefan
11th November 2004, 09:13 AM
Simple RS232 null modem without handshaking

Should be the right one.....