Mesa 7C80 problem

Hi,

I have just upgraded my RPI4 from Bullseye to Bookworm and installed Linuxcnc 2.9.2 according to linuxcnc.org/docs/2.9/html/getting-start...lling_on_raspbian_12.  Now there seems to be a communication issue with the 7C80 - none if the input signals are working, neither the outputs. Both input and output pins are visible in halshow, but there seems to be no communication with the board (the board input indicator LEDs switch normally as I press buttons, but nothing happens in halshow)

I already performed 
mesaflash --device 7c80 --addr /dev/spidev0.0 --spi --readhmid
seems normal.

running halcmd loadrt hostmot2  and  halcmd loadrt hm2_rpspi on the command line also seem normal

Probably I have a missed something during the installation.  I hope someone can point me in the right direction
Thanks


 

That's really odd, especially with the hm2_rpspi driver since that
uses low level hardware access and the hardware did not change.

Are there any real time issues? a watchdog bite would cause
these kinds of issues. (check the hal watchdog has bitten pin)
You can check if communications are working by jogging
(you will get a following error if there are issues with communications)

Thanks for your quick response!

hm2_7c80.0.watchdog.has_bit is set

I don't have steppers connected at the moment, but the software lets me jog without throwing any errors. If necessary to test, I can connect the steppers.

If you don't get real time errors, it sounds like there may be a race condition
in LinuxCNC startup. You might try increasing the watchdog timeout

That worked!

Many thanks for your speedy assistance!
Happy new year!