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This is a bitch to understand


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All attempts to communicate with the can bus have failed. I have tried 2 different control boards with different cpu. This will be my documented learning on WTF 
makes this can bus function and how to set it up.
This is a tool from https://forum.uavcan.org/t/uavcan-gui-tool-v1-0-0/1212, says it's legacy but gonna give it a try to try to get an idea of the bus functionality

https://github.com/UAVCAN/gui_tool

Equiptment so far has been

here3 gps antenna setup  (big time fail)

matek m8q gps module  ( trying to communicate with this on canbus)

 

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The Kore board made a connection I believe, the pixhawk 4 said no

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 now to figure out what is says, discovery not possible

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This is the response when i connect the here3 gps to can1 on the kore carrier

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DEAD! This direction hit a dead end.   Next

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Here we go.  Starting to pick up some pieces

SLCAN (sometimes referred to as LAWICEL protocol) is the protocol you are looking for. There is no formal specification but a reasonably common subset is described here:

https://daytonadrone.com/3954-2/

page16 for SLCAN Protocol

What is UVCAN   UAVCAN is an open interoperability standard for off-the-shelf equipment

Designed for complex, high-integrity, real-time vehicular computing systems.

 

UAVCAN is an open lightweight data bus standard designed for reliable intravehicular communication in aerospace and robotic applications via CAN bus, Ethernet, and other robust transports. The acronym UAVCAN stands for Uncomplicated Application-level Vehicular Computing And Networking.

https://uavcan.org

UAVCAN/UDP and UAVCAN/serial are very new transports that are reviewed in detail in other sources like the PyUAVCAN docs 8 or the post on Alternative transport protocols in UAVCAN. Essentially they all reify the same concepts using the functional means provided by the underlying networking technology. For example, in the case of UAVCAN/UDP, the subjects are modeled as multicast groups, and services are manifested as UDP port numbers, which is optimal because it allows the implementation to offload the network traffic handling to the standard IP stack and the underlying networking hardware.

 

 

 

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On of the most interesting things so far is the canbus controlling the ESC, This is a update I will explore. This is a Zubax combination motor/ESC, it is open spec and Zubax has a controller they sell as an item

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This has some real potential 

https://zubax.com/products/mitochondrik-lv

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Not to get off track the purpose of all this brain strain is to figure out about canbus and why my here3 gps isn't working. 

here are a couple new images   the first my here3 actually

came up after going through the advanced settings again but the information is the same software vers 0

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This second image is a new canbus gps from mateksys, I only purchased this for testing the canbus and as you can see it reads the information
I had purchased a usb programmer to update this unit but i might be able to do it through mission planner

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http://www.mateksys.com/?portfolio=m8q-can#tab-id-8

Some days God throws me a bone.  The update via mission planner worked and now I actually got parameters from the m8q-can gps

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 it says it's the same version , guess it's just my imagination , but at least it's talking to it, better than the here3

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