Tool to manage openinverter via CAN

[celeron55]

I declare it done now, for my part. I think it's pretty good:

https://github.com/davefiddes/openinver ... ool/pull/1

[johu]

Cool, will test

I hope some documentation will end the Finnish public holiday called Bashersday

https://openinverter.org/wiki/CAN_commu ... es_via_SDO

Maybe not the best possible solution but easy to implement on the server side

[celeron55]

Bashersday is any day someone thinks ESP32 is a good alternative to documentation!

[johu]

I tried to get chatgpt to write the documentation for me but the result can safey be called bullsh*tting

The SDO (Service Data Object) protocol is a communication protocol used in CANopen networks to access and manipulate data within CANopen devices. In the context of the libopeninv library, which is a library for interacting with CANopen devices, the SDO protocol likely plays a crucial role in reading from and writing to object dictionary entries in CANopen devices.

[davefiddes]

Got fed up manually starting my SocketCAN interface on Linux. Turns out to be quite simple to configure a CAN bus to be started automatically:

https://www.pragmaticlinux.com/2021/07/ ... e-on-boot/

This uses systemd-network which knows how to manage SocketCAN networks as well as Ethernet. It can peacefully co-exist with NetworkManager so you don't break your existing network configuration. Will attempt to document for the next release of OIC.

[evMacGyver]

I'm doing something wrong. How can I get can mapping to work, it seems 0.0.8 version not include it as I get for oic -n 22 can list:
Error: No such command 'can'.
Tried celeron55 github version too.

EDIT: Oh, I got wrong branch

[davefiddes]

Try "oic map" in place of "oic can". I changed the verb to make a bit more sense.

It's not in a release version as I keep finding bugs in oic and libopeninv. It's OK as long as you avoid negative gains and offsets mostly.

[evMacGyver]

Got mapping done. Nice tool. Only thing is should new mapping save permanently, did not see any extra save commands? Otherwise I have problem with focci board.

[davefiddes]

The mapping commands edit the running configuration just like changing parameters. To save the parameters and CAN mapping you need to issue a "oic cmd save" which is equivalent to pressing the "Save Parameters to Flash" on the web interface.