OpenCPN Radar Overlay PlugIn

[ChuckSK]

LEOMARE

Well this is interesting. Your radar is reporting a status that we do not recognize (status=6). Please make sure that the ground wire in the Ethernet cable coming from the radar scanner is connected to pin 5. Then reapply power to the scanner.

I will be on the boat this weekend and will try to reproduce the radar state that your scanner is returning.

Chuck

[LEOMARE]

Thanks ChuckSK
Would i see Ethernet link up if the pin 5 to ground circuit was open?
As mentioned earlier i didnt actually put a switch in that circuit, i just punched down pin 5 to ground and control radar on/off with the power source, connected to a switch/fuse at the DC panel.

Ill be at the boat Friday night and will take a look.

If i wanted to try a clean install of another OS, like Ubuntu, is there an easier way of getting the gradar plugin working without having to compile the source code? I am afraid that compiling code is beyond my linux skillset.

Eric

[ChuckSK]

Originally Posted by LEOMARE

Thanks ChuckSK
Would i see Ethernet link up if the pin 5 to ground circuit was open?
As mentioned earlier i didnt actually put a switch in that circuit, i just punched down pin 5 to ground and control radar on/off with the power source, connected to a switch/fuse at the DC panel.

Ill be at the boat Friday night and will take a look.

If i wanted to try a clean install of another OS, like Ubuntu, is there an easier way of getting the gradar plugin working without having to compile the source code? I am afraid that compiling code is beyond my linux skillset.

Eric

Until today I didn't think so. I will check this weekend. I suspect that mode 6 is a sleep mode indicating that the ground connection is open.

Linux is beyond my skill-set also.

Chuck

[LEOMARE]

Hi ChuckSK,
I confirmed that PIN 5 was closed to ground. I also confirmed that without that circuit closed there is no ethernet link up.

So where can we source information on what each status code means?

Thanks again for the help
Eric

[LEOMARE]

Would the status codes be the same as error codes? See below link..

Garmin Radar Error Code 6 - The Hull Truth - Boating and Fishing Forum

Thanks
Eric

[ChuckSK]

Hi Eric

I was unable to duplicate a mode 6 from the scanner. Also I confirmed that there are no packets received when pin 5 is not grounded to the scanner.

Maybe try grounding pin 4.

The scanner modes were determined by discovery. To the extent that they are known, they are included in the code.

 switch(g_scanner_state)
     {
     case 1:
          scan_state = _T("Warmup");
          break;
     case 2:
          scan_state =_T("TT Standby");
          break;
     case 3:
          scan_state = _T("Standby");
          break;
     case 4:
          scan_state = _T("TX Active");
          break;
     case 5:
          scan_state = _T("Spinup");
          break;
     case 7:
          scan_state = _T("TT TX Active");
          break;
     case 8:
          scan_state = _T("TT Spinup");
          break;
     default:
          scan_state = _T("Unknown");
          break;
     }

Can we see a picture of the punch-down block with the connections?

Chuck

[LEOMARE]

Hi ChuckSK
I tried a Vista machine tonight, same status code 6.

I am beginning to wonder if my scanner is DOA?

Thanks again for all the help
Eric

[LEOMARE]

OK, new scanner. no more code 6.

Scanner powers up for ~70 secs (state = 1/warmup), then goes to state=3 standby.
When the scanner is warming up there is a count down displayed on the gradar icon. Once the scanner goes into standby a yellow dot appears on the button.
I right click and enable master mode and i see "TX ON" in the log, and packet captures shows that 172.16.1.1 (my Laptop) is ARP'ing for 172.16.2.0, but no response. I continue to see multicast frames from 172.16.2.0.
I added a static ARP entry for 172.16.1.1 with the mac sending multicast from 172.16.2.0, no help....
When i click the gradar icon only response is a "TX ON" in the log... The scanner doesnt spin up etc...

It seems to me that my problem resides within the "control place" unicast communication from PC to scanner. The fact that its not answering ARP requests isnt a good sign.

Any advice?


Here is the log:

0: Found network interface: 192.168.2.32/24
1: Found network interface: 127.0.0.1/8
2: Found network interface: 172.16.1.1/16
3: Scanner at 172.16.2.0 is accessible.
4: Successfully added to multicast group 239.254.2.0
5: ->gradar_pi: First Packet Rx 6: UpdateState: PluginState [M] Searching (1) Scanner state: Warmup (1)
7: Scan packets per tick: 1
8: True Heading: 320.7 Mag Heading: -1.#IND Variation: -18.8 thpri: 7 mhpri: 99 vpri: 5
9: UpdateState: PluginState [M] Warmup (2) Scanner state: Warmup (1)
10: Scan packets per tick: 2
11: UpdateState: PluginState [M] Warmup (2) Scanner state: Standby (3)
12: Scan packets per tick: 6
13: UpdateState: PluginState [M] Standby (3) Scanner state: Standby (3)
14: Scan packets per tick: 6
15: TX On
16: TX On
17: TX On
18: TX On
19: UpdateState: PluginState [M] Standby (3) Scanner state: Warmup (1)
20: Scan packets per tick: 1
21: UpdateState: PluginState [M] Warmup (2) Scanner state: Warmup (1)
22: Scan packets per tick: 2
23: UpdateState: PluginState [M] Warmup (2) Scanner state: Standby (3)
24: Scan packets per tick: 4
25: UpdateState: PluginState [M] Standby (3) Scanner state: Standby (3)
26: Scan packets per tick: 4
27: TX On

[bdbcat]

Leomare....

Initialization with countdown and yellow dot sound just right.

Using wireshark, do you actually see the TX-ON packet being sent from the PC to the scanner?

IIRC, my scanner does not respond to ARPs, either. I will confirm this.

Dave

[LEOMARE]

Hi Dave.
I was not seeing a single unicast packet out/in my (Laptop) interface. The closest thing to unicast-based communication between the laptop and the scanner was the arp request. If the scanner does not respond to ARPs then i would think that there must be an initial packet sent from the scanner to the computer that populates the ARP cache on the computer...??

I ran out time on the project and may not be able to work on this for a month or so. I ended up buying a garmin console (721SX) to give me radar for the rest of the season (foggy coast). Once i have a switch installed (capable of of port mirroring) I will start working on this again.

Thanks again for everyone's help and work on this project.

Eric

[Aikiguy]

Did I see wrong or did someone compile and have gradar running under linux?

Playing with embeded cpu systems and having fun, but would love to get gradar working. I thought someone had done, it, I had read about it, but I can't find it. Then again I could have been in the sun too long, that happens to us sailors.

Guy
:-)

[cagney]

Originally Posted by Aikiguy

Did I see wrong or did someone compile and have gradar running under linux?

Playing with embeded cpu systems and having fun, but would love to get gradar working. I thought someone had done, it, I had read about it, but I can't find it. Then again I could have been in the sun too long, that happens to us sailors.

Guy
:-)

I had no problem compiling gradar under Linux, but I don't have the hardware for a full test. I'm sure that "bdbcat" has it running in all it's glory, using Linux.

Thomas

[bdbcat]

Guy...

GRadar builds and runs on all three official platforms. The source is available via the link on opencpn.org Downloads page.

God Luck
Dave

[rgleason]

Has anyone tried, siggested or been working on Raymarine digital Radars?

Sent from my SCH-I545 using Cruisers Sailing Forum mobile app

[phmadeira]

so i have tried to follow this thread
so the gmr18 radar is working good with opencpn ?
any other improuvement on other brand ?
what is the easy radar to set up with opencpn
thank you