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USB Can Device not detected
#1
Hi,

I purchased this device and hoping to report back to the community:  https://www.tindie.com/products/lll7/can...rter-uccb/
When ordering I selected the SOCKET CAN (gs_usb) version.

I'm unfortunately not even getting off the start block.  When plugging in the device, it is not recognised by either the Openplotter Serial app, nor the CAN BUS app.

I upgraded Serial app to 2.2.1 (the only difference this made is that it no longer lists my edimax usb device)
I also upgraded CAN BUS app to 2.2.0.

when I do lsusb it shows up on the list.

Any idea what I can try?

   
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#2
I have look at lsusb. It looks the same chipset (STM32) as the Canable boards.

I expects you must generate a can0 for this board.

And then use it with SignalK.

With the Canable boards and the Candlelight firmware. You must make the can0
with:

ip link set can0 up type can bitrate 250000

You can give this a try.

But it depends on the firmware in your system.

Bram
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#3
thanks for the reply Bram.

As background, i'm connecting to a spur in my SeaTalk NG network.  I've stripped a cable and connecting blue and white (correctly i hope).  My wind instrument is on and other display on the network is showing the data.

I set can0 and bring it up with:
- sudo ip link set can0 type can bitrate 250000
- sudo ifconfig can0 up

when i check "ip link list" it shows up with "STATE UP", and if i add a connection in SignalK it shows "connected".   however I don't seem to be getting any traffic.  I've also tried using "candump can0" and nothing comes through.  

I have also noticed a strange correlation, when I bring can0 up, I seem to get intermittent data loss on the other devices on the network.  Does anyone know easy way to troubleshoot the CAN-H and CAN-L carriers?  possibly with multimeter?

   
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#4
If I am not wrong if you are using gs_usb firmware the serial app will not detect the device.
Documentation for that firmware: https://ucandevices.github.io/uccb.html > tools > GSUSB
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#5
Hi Loxon,

how are your settings in SignalK server for the can0 ?

Bram
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