Re: [Emc-users] Real-time OS for machine controllers

[Andy Pugh]

> On 26 Jan 2020, at 00:56, John Dammeyer <jo...@autoartisans.com> wrote:
> 
> . LinuxCNC stops being an true open source solution the moment an aftermarket 
> hardware step/servo interface board is required.

That rather depends on which board it is. 
The Mesa FPGA code is open-source, and some people have made their own Mesa 
style cards that work with the existing drivers. 
Also, the Mesa smart-serial protocol is open source, which allows the STMBL 
drive to appear as a smart serial peripheral to a host FPGA card. 

The situation with EtherCAT is more complicated. 

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