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yes i know that if i want to ue this component i will need sensors but what is the difference between them

royka wrote:

You didn't activate one of the spi numbers yet. So first open the dtso and replace ONE of the disabled to okay.
 

Yes that was the problem and also I needed to set its status to okay in rk3399-orangepi-4-lts.dtb in /boot/dtb/rockchip.
Thanks a lot.
now when I run linuxcnc I get this:
Debug file information:
Note: Using POSIX realtime
Unexpected realtime delay on task 0 with period 1000000
This Message will only display once per session.
Run the Latency Test and resolve before continuing.
note: MAXV     max: 25.000 units/sec 1500.000 units/min
note: LJOG     max: 25.000 units/sec 1500.000 units/min
note: LJOG default: 6.000 units/sec 360.000 units/min
note: jog_order='XYZ'
note: jog_invert=set()
DRM_IOCTL_PANFROST_CREATE_BO failed: Invalid argument
DRM_IOCTL_PANFROST_CREATE_BO failed: Invalid argument
/usr/bin/linuxcnc: line 977:  6721 Segmentation fault      $EMCDISPLAY -ini "$INIFILE" $EMCDISPLAYARGS $EXTRA_ARGS
6683
6717
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime

and then it wont open anything. even the simulation cant be opened.

I have 7i95T + 7i78 as I need 7 axis to control (closed loop) + 1 pwm for spindle.
Which firmware is preferred in this case? Should I use the one that configures joint 5 on 7i95T as a pwm output and then use 2 axis on 7i78?