Firmware update bricked printer - SPI connection has been reset

[jay_s_uk]

@p8blr it looks like 3.5.3-rc1 isn't currently on the DSF package feed so you can't update to it in SBC mode

[p8blr]

@jay_s_uk Interesting. How did you check that so I know for future reference? Is there no manual way to update firmware in SBC mode?

[jay_s_uk]

@p8blr was reported in the other thread. And you shouldn't manually update as there may be breaking changes between the firmware and DSF

[timschneider]

@p8blr was the extended delay able to get rid of the unknown driver messages?

the M122 looks normal to me.

[p8blr]

@timschneider The delay didn't make a difference, however, changing the brake code to S10 from S1000 seems to have fixed that particular issue.

M569.7 P0.2 C"out3" S10 ; driver 2 on board 6XD uses port out3 to control the brake
M569.7 P0.3 C"out4" S10 ; driver 3 on board 6XD uses port out4 to control the brake
M569.7 P0.4 C"out5" S10 ; driver 4 on board 6XD uses port out5 to control the brake
M569.7 P0.5 C"out6" S10 ; driver 5 on board 6XD uses port out6 to control the brake

Note that I was playing with increasing that value because my servos were getting position recovery errors.

[chrishamm]

@p8blr It's now available, looks like the GitHub Actions workflow for prereleases wasn't triggered correctly. Sorry for the inconvenience.

[p8blr]

@chrishamm Didn't work.

Process:
Removed SD card from duet, connected RPI ribbon cable, powered on, M997 S2 F"unstable", sudo apt update, sudo apt full-upgrade

[chrishamm]

@p8blr /dev/gpiochip4 is correct for the Pi 5. Is it still the same board or did you replace it?

[p8blr]

@chrishamm Exact same board. I'll reimage the pi and try again.

[chrishamm]

@p8blr If it's actually caused by a system update, don't use apt to install the latest system package versions, instead use M997 S2 only to update DSF. I'll investigate.

[p8blr]

@chrishamm new image with no updates works. M997 S2 F"unstable", M997 S2

[oozeBot]

@chrishamm said in Firmware update bricked printer - SPI connection has been reset:

@p8blr If it's actually caused by a system update, don't use apt to install the latest system package versions, instead use M997 S2 only to update DSF. I'll investigate.

@chrishamm - any updates one what has caused this behavior to start happening? We hadn't noticed it until a recent apt upgrade (not Duet related). Are there workarounds to get this back on the command line? Thanks

[chrishamm]

@oozeBot We have some more background information about the cause of this problem; it appears to affect the 6HC/6XD only. @dc42 is going to improve the upgrade mechanism in 3.6.0 stable.