GPS problems

Submitted: Saturday, May 29, 2004 at 23:24
ThreadID: 13288 Views:3495 Replies:14 FollowUps:10
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I am still trying to get my GPS to talk with my laptop . It wont comunicate at all

My questions are : Whats the NMEA set at ? Vi.5APA ? V1.5XTE ? or V2.1GSA ?

Also Baud Rate ?

My comp port settings are Bits per second ( 9600 )
Data bits ( 8 )
Parity ( none )
stop bits ( 1 )
Flow control ( none )

and in advanved .... use fifo buffers (requires 16550 compatible uart ) is ticked

Any help would be great . Trying to run discover oz
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Reply By: Member - Bernie. (Vic) - Saturday, May 29, 2004 at 23:37

Saturday, May 29, 2004 at 23:37
It's OK Eric: John & I have a Melbourne Melways !!!

Sorry can't help with the computer I thought that was Trucksters go.

Cheers
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Follow Up By: Member Eric - Sunday, May 30, 2004 at 00:15

Sunday, May 30, 2004 at 00:15
lol
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Reply By: Member - John (Vic) - Saturday, May 29, 2004 at 23:46

Saturday, May 29, 2004 at 23:46
Try
V2.1GSA
4800 Baud
On the GPS
Not sure about the Comp settings as yet will have to stop posting and look at that side of things.
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Reply By: Leroy - Saturday, May 29, 2004 at 23:49

Saturday, May 29, 2004 at 23:49
Eric,

all your com port settings look ok. I have my NMEA set to v2.1gsa and make sure that the baud rate on the gps is 9600 also. I hav e a magellan and there is a simulate mode you can put the gps in and it pumps data out the com port. To test your comms fire up Hyperterminal in windows and configure your comms like you have above and connect your GPS to your serial port. you should see nmea data appear in the hyperterminal window. Once you have established thi sis working then you can move on to getting discover oz working.

Leroy
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Follow Up By: Member Eric - Sunday, May 30, 2004 at 00:17

Sunday, May 30, 2004 at 00:17
Hyperterminal dosnt find com port 5 that i need to test , it comes up ok on Discover oz . ran the test , no go
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Follow Up By: Leroy - Sunday, May 30, 2004 at 00:30

Sunday, May 30, 2004 at 00:30
Something is not right. Do you have your serial port configured to com 5 on your laptop? If it is a valid com port 5 then it will appear in Hyperterminal. I,ve been playing with pcs with 8serial ports this week so it will work with a valid com 5 if set up correctly. You could try removing the com port in device manager and letting windows find it again and try again.

Leroy
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Reply By: Member - John (Vic) - Sunday, May 30, 2004 at 00:00

Sunday, May 30, 2004 at 00:00
Mine talks fine at a Baud rate of 4800 if your computer is set to 9600 then you should set the GPS to the same.
This is the speed that the two units share data they must be the same.
The faster the Baud the faster the data transfer / map plot upgrades, I think.
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Reply By: Member - John (Vic) - Sunday, May 30, 2004 at 00:10

Sunday, May 30, 2004 at 00:10
Set your NMEA and baud as described.
Plug in your GPS unit and make sure the programe is running on your lap top, go to Options on the screen of you lap top and click on GPS settings, click on test on the small screen it should test the link between your lap top and the GPS and tell you if it able to detect the GPS.
If it is not detecting the GPS then something is obviously wrong.
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Reply By: Member Eric - Sunday, May 30, 2004 at 00:19

Sunday, May 30, 2004 at 00:19
Done all this guys , no go , I need just to hand it to someone who knows what to , anyone know of such a person ?

Melbourne area , Will pay , just fix it lol
AnswerID: 60847

Follow Up By: Member Eric - Sunday, May 30, 2004 at 00:46

Sunday, May 30, 2004 at 00:46
changed it to hardware no go . Do I need the 12 plug , pluged in firthe comunication side ? or is this just for GPS power ?

Off to bed now , had enough lol
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Follow Up By: Leroy - Sunday, May 30, 2004 at 09:38

Sunday, May 30, 2004 at 09:38
12 is for gps pwr only
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Reply By: Member - John (Vic) - Sunday, May 30, 2004 at 00:25

Sunday, May 30, 2004 at 00:25
Eric my hyperterminal set up says that Under flow control is listed "HARDWARE"
otherwise all the rest is the same.

My other thought is is the link cable damaged ?
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Follow Up By: Member Eric - Sunday, May 30, 2004 at 09:01

Sunday, May 30, 2004 at 09:01
new cable John
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Reply By: Play Rough - Sunday, May 30, 2004 at 02:43

Sunday, May 30, 2004 at 02:43
Sorry I came into this discussion a little late and couldn't find the previous message, what is the GPS unit that your're trying to to connect? I just bought a Fortuna GPSmart (non bluetooth ver.) from Supercheap for $150 and the USB cable/power adapter for $20 (which the store person said it would connect to a kaptop) after a few fustrating days and internet hours, I found out that the cable was only for supplying power to the unit via the usb port on a laptop or the special car adapter. a sync cable ( $65 from expansys.com.au)has a special doggle moulded into the cable to change ttl serial coms to usb format. I'm now waiting for it to arrive. Could this be a similar reason for yours? BTW i'm reasonably impressed by the fortuna unit, it dosn't have all the bells an whistles of other units but seems reasonably accurate and picks up satelites very well inside the car
Regards
Craig
AnswerID: 60852

Follow Up By: joohnoo - Sunday, May 30, 2004 at 20:30

Sunday, May 30, 2004 at 20:30
Could you let know the results as I have the same unit and generally happy except for the computer connection.

Cheers

john
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Reply By: Member - Ivan (ACT) - Sunday, May 30, 2004 at 07:40

Sunday, May 30, 2004 at 07:40
Eric,

are you using one of those USB to Serial conversion cables?? - I've had strange results with those.. The major issue has been that for some reason (after it has been working for a while, that all of a sudden it can't find the com port any more) - looking in the system config under hardware, the "virtual" com port which has been created (ie com5) is no longer there, but com6 is.. You might want to confirm that side of it.

Also, when using the Track On feature, it works fine at speed, but loses the connection when I stop - but not consistently!! Frustrating

I blame the USB-serial cable

Good luck
Cheers,

Ivan
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Reply By: Member - JohnR (Vic) - Sunday, May 30, 2004 at 08:58

Sunday, May 30, 2004 at 08:58
Eric, I think Ivan has his finger on the right question. It is one as to whether your computer is well set up for serial communication to the GPS.
Cheers,
Who?
John

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Follow Up By: Member Eric - Sunday, May 30, 2004 at 09:05

Sunday, May 30, 2004 at 09:05
The problem I have is that the laptop dosnt have a serial port , I got the serial port /USB adaptor from Dick Smith . And it instaled ok , it come up in my device manager and this is were i was looking at the com port settings
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Follow Up By: Leroy - Sunday, May 30, 2004 at 09:43

Sunday, May 30, 2004 at 09:43
what brand is it? We need laptops to communicate via serial ports for equipment at work. We have problems using those coverters. We now make sure we buy laptops (Dell Latituds) with serial and parallel ports (not just for printers but security dongles) for service personal.

Leroy
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Reply By: brianm - Sunday, May 30, 2004 at 12:44

Sunday, May 30, 2004 at 12:44
eric
there was a item on laptop nav in western4wdriver spring 2001 edition if can get a copy, or look a the settings he uses.
try www.eureka4wd.com.au/oziexplorer.htm.you can check your settings to his
it might get you going.
brian
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Follow Up By: Member Eric - Sunday, May 30, 2004 at 13:04

Sunday, May 30, 2004 at 13:04
I have oz explorer but not loaded , ill try that
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Reply By: Baz (NSW) - Sunday, May 30, 2004 at 22:00

Sunday, May 30, 2004 at 22:00
Boy !!!! i got a headache just reading all the posts, good luck Eric sounds bloody frustrating wish i could help, we're going down that road in the future when we get our laptop.

Baz.
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Reply By: Member - Karl - Monday, May 31, 2004 at 12:45

Monday, May 31, 2004 at 12:45
Same here. I am a bit old fashioned here. I just turn on my GPS and look at my paper maps. Takes about 5 minutes to work out where I am or ten minutes if the GPS plays up.

I hope you work it out but it sounds like it's a more complicated (read expensive) problem that you hope.
AnswerID: 60997

Reply By: Owie - Saturday, Jun 05, 2004 at 10:59

Saturday, Jun 05, 2004 at 10:59
Eric,

I have shared your frustration. I work for CFA, and set up a vehicle based fire mapping system to plot fires and mark water, hazards, losses etc...

In setting this up they gave me an Acer Tablet (touch screen laptop) garmin GPSII, and the dreaded USB adaptors. We have come the the conclusion that the use of the USB port is just too unstable and unreliable.

I have used electronic GPS mapping and navigation for a few years now, and I'd only reccomend serial connections. I am however about to investigate the use of Blue Tooth GPS's, (in the next week or two) I am hopefull that this will be more stable and allow the connecttion of a GPS to a laptop which does not have a serial connection.

Sounds like you have got the settings right, but without looking at it... who knows ?
I am in the eastern suburbs of Melb, if you are out that way, I'd be happy to have a look at your set up, and am happy to show you what I use.

Cheers
Daryl..
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