Den 2022-03-01 kl. 21:17, skrev Bari:
On 3/1/22 13:20, Nicklas SB Karlsson wrote:
Already have a simple implementation of an Ethercat driver with
hardcoded configuration but read something about the license problem
and have kept it for myself.
If you developed this yourself without being under an NDA or some
contract with Beckhoff aren't you free to distribute this under any
license that you choose?
Used SOEM but added some code, no NDA.
You don't have to use their term for the driver if it is trademarked.
Call it something else such as FreeCAT.
Renaming is simple, will do that.
The FSF has lots of resources available. Run the Beckhoff license past
them for an opinion on conflicts with GPL.
Are there any patents involved in a Linux driver for EtherCAT?
Not sure about the driver, master use ordinary Ethernet but nodes have
special hardware, guess is it work similar to a shift register as values
are read/written while datagram pass thru. Pretty sure patent is about
the nodes.
Real time perfomance is excellent and there are plenty of devices
available to chose from on the market, Beckhoff have many.
Nickas Karlsson
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