Cannot get out of Estop

Hi,

I have a PrintNC machine with a Flexi-HAL board, and installed the customized Expatria LinuxCNC image (github.com/Expatria-Technologies/Flexi-Pi) on a Pi5, then upgraded LinuxCNC to 2.9.8. It all works fine.
I have the Pi5 with an SSD as well as an SD card, so I can kind of multiboot, and the above mentioned setup is on the SSD. I wanted to move from bookworm to trixie, so imaged the SD card with the latest trixie based LinuxCNC image (github.com/LinuxCNC/linuxcnc/releases/do...9.8_arm64_trixie.deb), and copied all the linuxcnc configuration over from the SSD.

LinuxCNC starts with the same configuration, but I cannot get out of ESTOP. I click the big red ESTOP button (using qtdragon_hd), but nothing happens.

Any advise what I can look at?

Thank you in advance!

Yes, there is an ESTOP input on the board, but it is not triggered.

The communication between the RPi5 and the board is SPI. The firmware flashed is a customized version of remora-spi, tailored for the Flexi-HAL board by Expatria (github.com/Expatria-Technologies/remora-flexi-hal).

I don't think there is anything is wrong with the board. As I said, I have multiboot set up with an SSD and an SD card, and I have the customized linuxcnc image on the SSD from Expatria (github.com/Expatria-Technologies/Flexi-Pi). If I boot that, everything works.

My best guess is that it is the communication between the board and the Pi through SPI that isn't working for some reason.