Define rotary axes for arduino due about core

[terjeio]

I have defined in grbl N axis 6

Here I presume:

core/config.h

Line 38 in 11640ad

#define N_AXIS 3 // Number of axes

There is no need to change anything else other than choose a board map in my_machine.h that supports the number of required axes. Be aware that none of the suppiled ones supports more than 5 - and a compile time error should pop up if you configure more than the selected map file supports.
So, for 6 axis support you have to add your own map file with the pin mappings required.

[MARIOBASZ]

your tinyg2_due_map contains the pinmap for six axes.
In bcnc I visualize the six axes running
In your ioSender, it shows me three axes, but if I load again the version loaded before (two months ago) it shows all six axes.

[terjeio]

your tinyg2_due_map contains the pinmap for six axes.

Oops, I have missed that - too many board maps to keep track of...

In your ioSender, it shows me three axes

That is odd, It shows all 6 axes for me. Could it be that you have compiled with COMPATIBILITY_LEVEL > 0?

ioSender configures the number of axes to show from the $I report, I guess I should try add detection from the first real-time report as well. Setting COMPATIBILITY_LEVEL > 0 disables some of the extensions I have added to grblHAL, including reporting the number of axes defined.

[terjeio]

Detection for number of axes from the first real-time report added to ioSender Edge.35p1 - available for download here.

Note that some of the new functionality available in grblHAL (and ioSender) is disabled when COMPATIBILITY_LEVEL is set > 0.

[MARIOBASZ]

Now I can see all 6 axes. I do not know the reason (communication?). Trying to record safety door they look at iosender. I will tell you about problems with safery door in Due. Hugs.