grblHAL project exists

[Harvie]

Hello @chamnit ,
i am not sure about what state your code is in. But there is already GRBL port with HAL support:
https://github.com/terjeio/grblHAL

Which already contains support for metric tonne of various microcontrollers:
https://github.com/terjeio/grblHAL/tree/master/drivers

As well as stuff like G5 cubic splines, etc...

Maybe you might consider joining the efforts with them instead?

[chamnit]

@Harvie Thanks for the heads up. I've been slammed with work at my new job.

I know that @thejeio has been working on a HAL. I did a quick review the code. It looks pretty good and very well organized. Happy to see that. The SAMD21 port looks to use the Arduino libraries, which is ok, but not ideal. That said, it's pretty obvious to me now that joining efforts is the right choice. Although, I honestly don't know what my bandwidth is going be. It's going to be limited at best in the near future.

[Harvie]

@chamnit I completely get it, i am in very similar situation with bCNC. I don't think it's critical that you actualy write code. but as author of GRBL you have kind of influence on the community, so if you think this project is going the right way there are few easy, but important things you can do.

1.) Do not split the (already limited) community efforts by starting separate project, which might drag some of developers from grblHAL project.
2.) instead - If you think there is something that you've done better than grblHAL, try to offer these changes to be merged to their tree
3.) Possibly publicly support that project in GRBL README on https://github.com/gnea/grbl declaring it "official" successor of GRBL, so more people get the idea where to move if they feel limited by GRBL.

Of course these steps make sense only if you beleive they did the right thing. This is obviously up to you, ultimately.

[CastIrony]

There's also the Grbl_Esp32 project, which is less ambitious than grblHAL but I know is used by a lot of people in the MPCNC community.

[Harvie]

@CastIrony i am aware of it, but grblHAL provides ESP32 port with web UI as well, while Grbl_Esp32 does not support other platforms than ESP32. It would be interresting to check if they have something extra that could be ported to grblhal.

[nsiatras]

If grblHAL had an easier installation, especially for windows users, then it would be the number one grbl firmware