Duet 3 DCS not starting / Diag light 1hz
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So I had a perfectly running Duet3 when i tried to update to RRF3.4beta2 through the DWC. (From Stable 3.3)
Result was a loop of DWC saying its installing the Firmware. Honestly: I dont remember if it finished or if i killed the power. But it was at least running for 10-15 minutes.
So now i am stuck with:
my setup is a Duet 3 6HC with a Rpi4 connect (so SBC mode) the following log is created by 5V -> SBC by the Duet3
sudo journalctl -u duetcontrolserver
gives me the following
-- Logs begin at Mon 2021-08-23 18:41:58 BST, end at Mon 2021-08-23 20:08:11 BST. -- Aug 23 19:11:08 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:10 duet3 DuetControlServer[421]: Duet Control Server v3.3.0 Aug 23 19:11:10 duet3 DuetControlServer[421]: Written by Christian Hammacher for Duet3D Aug 23 19:11:10 duet3 DuetControlServer[421]: Licensed under the terms of the GNU Public License Version 3 Aug 23 19:11:10 duet3 DuetControlServer[421]: [info] Settings loaded Aug 23 19:11:11 duet3 DuetControlServer[421]: [info] Environment initialized Aug 23 19:11:11 duet3 DuetControlServer[421]: [fatal] Could not connect to Duet (Invalid protocol version 6) Aug 23 19:11:11 duet3 systemd[1]: duetcontrolserver.service: Failed with result 'protocol'. Aug 23 19:11:11 duet3 systemd[1]: Failed to start Duet Control Server. Aug 23 19:11:11 duet3 systemd[1]: duetcontrolserver.service: Service RestartSec=100ms expired, scheduling resta Aug 23 19:11:11 duet3 systemd[1]: duetcontrolserver.service: Scheduled restart job, restart counter is at 1. Aug 23 19:11:11 duet3 systemd[1]: Stopped Duet Control Server. Aug 23 19:11:11 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:11 duet3 DuetControlServer[558]: Duet Control Server v3.3.0 Aug 23 19:11:11 duet3 DuetControlServer[558]: Written by Christian Hammacher for Duet3D Aug 23 19:11:11 duet3 DuetControlServer[558]: Licensed under the terms of the GNU Public License Version 3 Aug 23 19:11:12 duet3 DuetControlServer[558]: [info] Settings loaded Aug 23 19:11:12 duet3 DuetControlServer[558]: [info] Environment initialized Aug 23 19:11:12 duet3 DuetControlServer[558]: [warn] Restarting transfer because the Duet received a bad respon Aug 23 19:11:12 duet3 DuetControlServer[558]: [fatal] Could not connect to Duet (Invalid protocol version 6) Aug 23 19:11:12 duet3 systemd[1]: duetcontrolserver.service: Failed with result 'protocol'. Aug 23 19:11:12 duet3 systemd[1]: Failed to start Duet Control Server. Aug 23 19:11:12 duet3 systemd[1]: duetcontrolserver.service: Service RestartSec=100ms expired, scheduling resta Aug 23 19:11:12 duet3 systemd[1]: duetcontrolserver.service: Scheduled restart job, restart counter is at 2. Aug 23 19:11:12 duet3 systemd[1]: Stopped Duet Control Server. Aug 23 19:11:12 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:13 duet3 DuetControlServer[570]: Duet Control Server v3.3.0 Aug 23 19:11:13 duet3 DuetControlServer[570]: Written by Christian Hammacher for Duet3D Aug 23 19:11:13 duet3 DuetControlServer[570]: Licensed under the terms of the GNU Public License Version 3 Aug 23 19:11:13 duet3 DuetControlServer[570]: [info] Settings loaded Aug 23 19:11:13 duet3 DuetControlServer[570]: [info] Environment initialized Aug 23 19:11:14 duet3 DuetControlServer[570]: [fatal] Could not connect to Duet (Timeout while waiting for tran Aug 23 19:11:14 duet3 systemd[1]: duetcontrolserver.service: Failed with result 'protocol'. Aug 23 19:11:14 duet3 systemd[1]: Failed to start Duet Control Server. Aug 23 19:11:14 duet3 systemd[1]: duetcontrolserver.service: Service RestartSec=100ms expired, scheduling resta Aug 23 19:11:14 duet3 systemd[1]: duetcontrolserver.service: Scheduled restart job, restart counter is at 3. Aug 23 19:11:14 duet3 systemd[1]: Stopped Duet Control Server. Aug 23 19:11:14 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:15 duet3 DuetControlServer[590]: Duet Control Server v3.3.0 Aug 23 19:11:15 duet3 DuetControlServer[590]: Written by Christian Hammacher for Duet3D lines 1-41...skipping... -- Logs begin at Mon 2021-08-23 18:41:58 BST, end at Mon 2021-08-23 20:08:11 BST. -- Aug 23 19:11:08 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:10 duet3 DuetControlServer[421]: Duet Control Server v3.3.0 Aug 23 19:11:10 duet3 DuetControlServer[421]: Written by Christian Hammacher for Duet3D Aug 23 19:11:10 duet3 DuetControlServer[421]: Licensed under the terms of the GNU Public License Version 3 Aug 23 19:11:10 duet3 DuetControlServer[421]: [info] Settings loaded Aug 23 19:11:11 duet3 DuetControlServer[421]: [info] Environment initialized Aug 23 19:11:11 duet3 DuetControlServer[421]: [fatal] Could not connect to Duet (Invalid protocol version 6) Aug 23 19:11:11 duet3 systemd[1]: duetcontrolserver.service: Failed with result 'protocol'. Aug 23 19:11:11 duet3 systemd[1]: Failed to start Duet Control Server. Aug 23 19:11:11 duet3 systemd[1]: duetcontrolserver.service: Service RestartSec=100ms expired, scheduling restart. Aug 23 19:11:11 duet3 systemd[1]: duetcontrolserver.service: Scheduled restart job, restart counter is at 1. Aug 23 19:11:11 duet3 systemd[1]: Stopped Duet Control Server. Aug 23 19:11:11 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:11 duet3 DuetControlServer[558]: Duet Control Server v3.3.0 Aug 23 19:11:11 duet3 DuetControlServer[558]: Written by Christian Hammacher for Duet3D Aug 23 19:11:11 duet3 DuetControlServer[558]: Licensed under the terms of the GNU Public License Version 3 Aug 23 19:11:12 duet3 DuetControlServer[558]: [info] Settings loaded Aug 23 19:11:12 duet3 DuetControlServer[558]: [info] Environment initialized Aug 23 19:11:12 duet3 DuetControlServer[558]: [warn] Restarting transfer because the Duet received a bad response (header) Aug 23 19:11:12 duet3 DuetControlServer[558]: [fatal] Could not connect to Duet (Invalid protocol version 6) Aug 23 19:11:12 duet3 systemd[1]: duetcontrolserver.service: Failed with result 'protocol'. Aug 23 19:11:12 duet3 systemd[1]: Failed to start Duet Control Server. Aug 23 19:11:12 duet3 systemd[1]: duetcontrolserver.service: Service RestartSec=100ms expired, scheduling restart. Aug 23 19:11:12 duet3 systemd[1]: duetcontrolserver.service: Scheduled restart job, restart counter is at 2. Aug 23 19:11:12 duet3 systemd[1]: Stopped Duet Control Server. Aug 23 19:11:12 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:13 duet3 DuetControlServer[570]: Duet Control Server v3.3.0 Aug 23 19:11:13 duet3 DuetControlServer[570]: Written by Christian Hammacher for Duet3D Aug 23 19:11:13 duet3 DuetControlServer[570]: Licensed under the terms of the GNU Public License Version 3 Aug 23 19:11:13 duet3 DuetControlServer[570]: [info] Settings loaded Aug 23 19:11:13 duet3 DuetControlServer[570]: [info] Environment initialized Aug 23 19:11:14 duet3 DuetControlServer[570]: [fatal] Could not connect to Duet (Timeout while waiting for transfer ready pin) Aug 23 19:11:14 duet3 systemd[1]: duetcontrolserver.service: Failed with result 'protocol'. Aug 23 19:11:14 duet3 systemd[1]: Failed to start Duet Control Server. Aug 23 19:11:14 duet3 systemd[1]: duetcontrolserver.service: Service RestartSec=100ms expired, scheduling restart. Aug 23 19:11:14 duet3 systemd[1]: duetcontrolserver.service: Scheduled restart job, restart counter is at 3. Aug 23 19:11:14 duet3 systemd[1]: Stopped Duet Control Server. Aug 23 19:11:14 duet3 systemd[1]: Starting Duet Control Server... Aug 23 19:11:15 duet3 DuetControlServer[590]: Duet Control Server v3.3.0 Aug 23 19:11:15 duet3 DuetControlServer[590]: Written by Christian Hammacher for Duet3D Aug 23 19:11:15 duet3 DuetControlServer[590]: Licensed under the terms of the GNU Public License Version 3 Aug 23 19:11:15 duet3 DuetControlServer[590]: [info] Settings loaded Aug 23 19:11:15 duet3 DuetControlServer[590]: [info] Environment initialized Aug 23 19:11:16 duet3 DuetControlServer[590]: [fatal] Could not connect to Duet (Timeout while waiting for transfer ready pin) Aug 23 19:11:16 duet3 systemd[1]: duetcontrolserver.service: Failed with result 'protocol'. Aug 23 19:11:16 duet3 systemd[1]: Failed to start Duet Control Server. Aug 23 19:11:16 duet3 systemd[1]: duetcontrolserver.service: Service RestartSec=100ms expired, scheduling restart. Aug 23 19:11:16 duet3 systemd[1]: duetcontrolserver.service: Scheduled restart job, restart counter is at 4. lines 1-49The log shows the same when i power Duet 3 and the RPi4 both with external 5V. Duet via EXT 5V pin ( I am using PS_ON with an SSR to turn 24V PSU on and OFF)
If have been searching the forum for hours now...have reinstalled the SD card several times nothing helps. (including apt get update/upgrade etc...)
I have flashed the board succesfully via bossa (Windows USB)
M115 gives me:m115 FIRMWARE_NAME: RepRapFirmware for Duet 3 MB6HC FIRMWARE_VERSION: 3.4.0beta2 ELECTRONICS: Duet 3 MB6HC v1.01 or later FIRMWARE_DATE: 2021-08-03 12:42:44<LF>ok<LF>I dont know what else i can do?
The Diag light flashes with 1hz which it also has been when the duet was working..The only thing i havent done is operating the board in Standalone mode.
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When running with a Pi, in order to use beta firmware you must also update the DCS to the beta using the unstable package server.
See here on how to switch from stable to unstable branch.
https://github.com/Duet3D/DuetSoftwareFramework/wiki/SBC-Setup-Guide#unstable-package-feedAt this point it may be easiest to flash the board back to 3.3 so that DCS can communicate with it again, and then do the unstable branch update on the Pi.
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@phaedrux thx for your quick response i will try this next. (and give feedback)
FYI for everyone else reading this thread. Just for completion of troubleshooting:
The standalone mode works fine with the Beta.bin in /sys and the provided "Beta" DWC files in /www -
@phaedrux THX.. i should have asked earlier
would have saved me couple of hours 
...well i followed the unstable wiki and changed the branch and apt update & upgrade now DWC is working again. Didnt even had to flash 3.3 again. BIG THX -
Also, the diag light blinking at 1hz is a sign it's normal. Like a heartbeat.
