Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-05-2016, 14:11   #1
Registered User

Join Date: Sep 2009
Location: British Columbia
Boat: Nordhavn 46
Posts: 20
Open Cpn can't see GPS

Hi:
I had to reinstall Windows 7, then reinstalled Open Cpn and the Prolific driver. The computer sees the GPS puck, but Open Cpn cannot. Baud Rate is set at 4800, port is set as dictated by computer. I have reinstalled Open Cpn twice and used two different GPS units, both of which worked before reinstalling Windows and both of which are recognized by the computer and are providing NEMA output including Lat Long. Any thoughts would be really appreciated.
thanks
Steve
__________________

__________________
Steve Strand is offline   Reply With Quote
Old 10-05-2016, 17:15   #2
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 16,834
Re: Open Cpn can't see GPS

Install different soft see if this one can see the gps.

b.
__________________

__________________
barnakiel is offline   Reply With Quote
Old 10-05-2016, 17:38   #3
Registered User
 
HappySeagull's Avatar

Join Date: Dec 2010
Location: B.C.,Canada
Boat: 29'
Posts: 2,388
Re: Open Cpn can't see GPS

yes try a simple gps program. Rule of thumb; if it works, your O configuration is screwed up.. (VisualGPS is pretty good in the old version (4.2.105) but there's lots more that just give a position and show satellites)

If it doesn't work, Windows is screwed up. Drivers ,et al...
.... it may even be that Windows or something else is using the gps ...
whichever, remember that OpenCPN wants exclusive use. Only one app can use the gps at a time unless you get some special software.
__________________
HappySeagull is offline   Reply With Quote
Old 10-05-2016, 17:53   #4
Registered User

Join Date: Sep 2009
Location: British Columbia
Boat: Nordhavn 46
Posts: 20
Re: Open Cpn can't see GPS

Yes, I have Heppenstall's Com Check and it sees the GPS and reports my position. I have had it on the same computer with Open Cpn for years, never a problem. I have carefully reinstalled only a small amount of software and nothing else that requires a GPS signal as far as I can tell.
Any other thoughts?
Thanks to you both!!
__________________
Steve Strand is offline   Reply With Quote
Old 11-05-2016, 05:43   #5
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 8,253
Re: Open Cpn can't see GPS

Steve, this may not be the problem but always use the same usb ports for a given device, particularly with multiple devices. I label them. Windows has a USB index of all connections and my index was quite long with many old connections. So I used a small program to clean the index out and started fresh, labeling all devices and usb ports.
This may not be the problem at all but I mention it...I would review the user documentation under "Getting Started - Gps" on opencpn.

Does the correct com port show up in the connections dropdown? What is the correct com port? Do you see it working oroperly in devices?
__________________
rgleason is offline   Reply With Quote
Old 11-05-2016, 05:45   #6
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 8,253
Re: Open Cpn can't see GPS

Also search this form's threads for GPS for a recent thread with a long list of resources. This question is asked often.
__________________
rgleason is offline   Reply With Quote
Old 11-05-2016, 05:46   #7
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 8,253
Re: Open Cpn can't see GPS

Also have you rebooted?
__________________
rgleason is offline   Reply With Quote
Old 11-05-2016, 09:15   #8
Registered User

Join Date: Jun 2010
Location: St. Petersburg, Florida
Boat: Gemini 3200
Posts: 687
Re: Open Cpn can't see GPS

Steve, you didn't mention if you were seeing data in the NMEA Debug window. Did you try that? In my experience, if data flows in the debug window you just have to wait for the GPS to get a fix. I've had it take as long as 20 minutes. If you're not getting data in the debug window there is something wrong with your connection.

Fabbian
__________________
fgd3 is offline   Reply With Quote
Old 11-05-2016, 09:58   #9
Registered User

Join Date: Sep 2009
Location: British Columbia
Boat: Nordhavn 46
Posts: 20
Re: Open Cpn can't see GPS

Thanks all:
Yes, I have rebooted a number of times, have tried two different GPS units in all of my USB ports, matching the port numbers found by the computer with the ones I put into Open Cpn.
No, the NMEA Debug window shows no connectivity, but my GPS units show up on the computer port display and are read by Google Earth and a com check program. I have reinstalled Open Cpn 3 times.
Totall bewildered, I have used Open Cpn for years and we are about to head up to Alaska, I don't want to leave without it!
Steve
__________________
Steve Strand is offline   Reply With Quote
Old 11-05-2016, 10:06   #10
bcn
Registered User

Join Date: May 2011
Location: underway whenever possible
Boat: Rangeboat 39
Posts: 2,609
Re: Open Cpn can't see GPS

Steve,

can you perhaps post your .ini and .log file?
And perhaps a screenshot of the Connections window?

(Btw.: I have here a Prolific USB-serial convertor - ditched. Works under Linux, but no luck with some Windows version. FTDI is just better. Optimal combined with some nice uBlox GPS chipset)

Hubert
__________________
bcn is offline   Reply With Quote
Old 12-05-2016, 01:06   #11
Registered User

Join Date: Jul 2006
Location: Underway in the Med -
Boat: Jeanneau 40 DS SoulMates
Posts: 1,854
Images: 1
Re: Open Cpn can't see GPS

when we upgraded to a tablet with our old gps puck I could not get it to connect -- sent a note to the puck mfg and they said I would have to upgrade my puck as the one I have would not work with windows 7 -- got a hamlet with Bluetooth and no issues since
__________________
just our thoughts and opinions
chuck and svsoulmates
underway in Eastern Med
chuckr is offline   Reply With Quote
Old 12-05-2016, 06:57   #12
Registered User
 
HappySeagull's Avatar

Join Date: Dec 2010
Location: B.C.,Canada
Boat: 29'
Posts: 2,388
Re: Open Cpn can't see GPS

Steve, add to bcn's request whether you are 64 bit Win7? Prolific drivers are a particular mess with it.

Also confirm you do not have anything using the gps in the background....Say, GoogleEarth via wifi...?or something. The Win7 taskmanager may give a clue here.
OpenCPN needs exclusive access to serial ports (as most applications do)

Also, Uninstalling/Reinstalling is a waste of time unless you are sure to delete the opencpn.ini from the settings folder. Click the ? mark on the toolbar to find location of these..
Deleting opencpn.ini and starting O again amounts to a re-install. You can also just rename it...say, "OLDopencpn.ini" or "opencpn.old" etc.
__________________
HappySeagull is offline   Reply With Quote
Old 13-05-2016, 02:59   #13
Registered User
 
rgleason's Avatar

Join Date: Mar 2012
Location: Boston, MA
Boat: 1981 Bristol 32 Sloop
Posts: 8,253
Re: Open Cpn can't see GPS

Perhaps using NavMonPC would help? Try getting gps signal with that.
__________________
rgleason is offline   Reply With Quote
Old 30-05-2016, 13:51   #14
Registered User

Join Date: Jul 2012
Location: Russell Bay Of Islands New Zealand
Boat: Salthouse 33
Posts: 74
Angry Re: Open Cpn can't see GPS

I am experiencing the exact same problem with a brand new Laptop dedicated to openCPN, Windows 10 a new Bu-353S4 GPS (plus have tried another)
Over the last couple of months I do not know hown many times I have installed/uninstalled OpenCPN 4.2 with the same result.

GPS functioning perfectly, data stream and showing my correct position however no matter what I do I cannot get openCPN to talk to it.
My devise manager shows it operating correctly and yet under the tools connections page I cannot get any data or flow on the NMEA debug screen
My gps has been installed in accordance with openCPN instructions and not disc supplied as recommended by many viewers I am being driven insane may go buy golf clubs!!!:
__________________
phil23 is online now   Reply With Quote
Old 30-05-2016, 14:06   #15
bcn
Registered User

Join Date: May 2011
Location: underway whenever possible
Boat: Rangeboat 39
Posts: 2,609
Re: Open Cpn can't see GPS

Can you please post a screenshot of the Windows device manager with the entry for the GPS, the communication tab of OCPN with the settings for the device and the OCPN log?

Another thing you might try is to open a terminal program and connect to the COM port of the GPS.

Hubert

Ps.: this comment from UsGlobalSat
BU-353S4 on Windows 10
might give us a hint that there can be a daemon installed which converts COM data for Windows Apps which need the location framework....
Speculating....
__________________

__________________
bcn is offline   Reply With Quote
Reply

Tags
gps, open cpn

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
open cpn can't see my GPS chaser2 OpenCPN 2 30-08-2013 14:53
Open CPN no GPS position after upgrading to Lion. riddon Navigation 0 06-12-2012 18:49
Open CPN wont open BONEY MAHONEY OpenCPN 3 26-07-2012 21:08
Open CPN Works Initially But Then Will Not Open GrahamW OpenCPN 4 25-01-2012 04:57
Open cpn Installs but Does Not Open with Vista 64 bit felipe OpenCPN 3 03-06-2011 12:23


Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 19:25.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.