EMC2 running on Raspberry Pi?

Just thought I should show the breadboard setup I have done, the mcp23017 is same as on my original soldered protoboard but there is also an atmega 168 which I have been experimenting with.

I would like to install real time linux on a RPi and use it to schedule the gpio communication only. What software pieces do I need? I do not need the CNC portions of LinuxCNC, nor the HAL portion or do I to run the gpio? I just want a realtime version of raspbian with realtime gpio. Suggestions?
thanks in advance
Doc

wyzarddoc wrote: I would like to install real time linux on a RPi and use it to schedule the gpio communication only. What software pieces do I need? I do not need the CNC portions of LinuxCNC, nor the HAL portion or do I to run the gpio? I just want a realtime version of raspbian with realtime gpio. Suggestions?
thanks in advance
Doc

see this wiki page
wiki.linuxcnc.org/cgi-bin/wiki.pl?NewRTInstall

There might be an existing GPIO-driver that works through HAL. If you code your own using xenomai real-time api/libs you don't need HAL, or even RTAPI - I think.

AW

see this wiki page
wiki.linuxcnc.org/cgi-bin/wiki.pl?NewRTInstall

There might be an existing GPIO-driver that works through HAL. If you code your own using xenomai real-time api/libs you don't need HAL, or even RTAPI - I think.

AW

there is a basic hal_gpio driver which works on the RPI in this branch. It would benefit from polishing, and speeding up.

- Michael

Thanks so much for the link. I'll check it out.

Did anyone got to compile linuxcnc for the ARM platform besides the simulator mode?

Regards