TTN5.1 wont "see" GPS

Davidb67 · Posted: Sat Nov 19, 2005 9:39 pm Post subject: TTN5.1 wont "see" GPS

I've searched the forums and tried suggestions, to no avail:

I've just de-installed a working TTN3 from my iPaq hx4700, which used an Emtac/socket b/t GPS, and installed my TTN5 upgrade and patched to v5.1.

Despite all attempts, I cannot get the small black & yellow disc spinning to confirm GPS connection, within GPS status. I've tried all this below:
-complete uninstall of TTN3, GPS drivers etc, & reset
-clean install of TTN5 & asociated apps (b/t, voices etc)
-deleted "old" gps pairing in b/t manager & create new pairing
-disabled "accept all incoming beams" in iPaq's connection options
-selected "other b/t GPS" in configuration, and tried EVERY available connection option show
-selected "other wired GPS", tried EVERY baud rate and EVERY available connection option shown
-tried firstly making a serial connection to the GPS in b/t manager, THEN starting TTN5

NONE of this works.
I DO have satellite fix on the GPS - tested it with my wifes iPaq 3970 running TTN3.
both devices are almost fully charged.
iPaq has plenty of available memory left.

I'm stumped!
Help!!

mikealder · Posted: Sat Nov 19, 2005 10:15 pm Post subject:

What is the output of the GPS unit set to it needs to be NMEA compliant to work with TT5, if its running a different protocol TT5 won't read the data, TT3 can read other types of data stream - so this might be a pointer - Lutz? any thoughts - Mike

Davidb67 · Posted: Sat Nov 19, 2005 11:04 pm Post subject:

Mike, it's whatever it comes with out of the box - didn't know it was "switchable" - been using it for c. 3 years, first with 3870, then 3970, then 4700.

lbendlin · Posted: Sun Nov 20, 2005 12:45 am Post subject:

mikealder is right - first thing to check is that the receiver is set to NMEA. TTN3 could handle both NMEA and SiRF but TTN5 can only use NMEA.

Next - forget all this stuff about pairing - it is NOT NEEDED. What you really need is two things

- have the iPaq subscribe to the serial port service of the receiver (in BT manager)
- enable the outgoing serial port (in BT Settings)

That's it - after you have done that the port will appear in the TTN5 port list. Use "Other BT" or "Other cable" at 38400.
_________________
Lutz

Report Map Errors here:
TomTom/TeleAtlas NAVTEQ

Davidb67 · Posted: Sun Nov 20, 2005 1:42 am Post subject:

Lutz & Mike - CHEERS guys!, you've cracked it!
deleted the pairing and I'm good!

all sorted as "other b/t GPS".

thanks again!

David

plobby · Occasional Visitor Joined: Nov 22, 2005 Posts: 5

i am having the same probs with an older tomtom gps receiver and ipaq 1940. i think it may of worked on tomtom 3 with Sirf. how do you change these things in laymans terms

lbendlin · Posted: Wed Nov 23, 2005 8:53 pm Post subject:

use the TomTom 3 GPS driver to switch it to NMEA
_________________
Lutz

Report Map Errors here:
TomTom/TeleAtlas NAVTEQ

plobby · Occasional Visitor Joined: Nov 22, 2005 Posts: 5

im not actually sure how to do that

plobby · Occasional Visitor Joined: Nov 22, 2005 Posts: 5

Awesome. This has fixed the problem. You guys rock! A suggestion should be made to Tomtom to incorporate a simple way of doing this in their software

Fangio18 · Posted: Sun Nov 27, 2005 12:32 pm Post subject:

How do I change or check whether my GPS Reciever is using SiRF or NMEA so that I can change it to NMEA if necessary?

Where do I find the TT3 GPS Driver?

Crying or Very sad

mikealder · Posted: Sun Nov 27, 2005 3:43 pm Post subject:

Try this link as the TT vs3 GPS driver is on this page (get the 2,07 verson)
http://www.pocketgpsworld.com/modules.php?name=Downloads&d_op=viewdownload&cid=13
Mike

Fangio18 · Posted: Mon Nov 28, 2005 8:46 am Post subject:

Well, looks like I have "most" of my issues sorted so thanks to everyone here who helped.

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