Slay
July 14, 2024, 5:33pm
1
klippy(30).log (1.9 MB)
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trying to setup a stealthburner with an EBB 2209 canbus running directly off the manta (no usb adapter). Seems like everything works ok without the canbus attached, but when I attach the canbus everything seems like it works for about 15 seconds, I see all 3 MCUs (manta, ebb, and cb1) in the sidebar… but then I get this error:
Lost communication with MCU ‘mcu’
Once I get that error nothing works, no amount of restarting works… I have to do a full power off and restart to get it to work again, and then it only works for 15 seconds and loses communications
any ideas?
Hello @Slay !
Have you tried to get the mcu CB1 updated to the equivalent version of Klipper?
klippy(2).log (383.2 KB)
Hello peeps, I have just updated mainsail by just clicking update all. Now I have re flashed the SKR 3 EZ board after…
Slay
July 14, 2024, 9:44pm
3
Good catch, just updated and still doing the same thing. Thanks though! I missed that.
Slay
July 15, 2024, 5:45pm
4
I’m thinking it might have something to do with the “bytes_retransmit” raising but I have no idea how to debug that…
Stats 23.9: gcodein=0 mcu: mcu_awake=0.047 mcu_task_avg=0.000018 mcu_task_stddev=0.000012 bytes_write=1157 bytes_read=4615 bytes_retransmit=0 bytes_invalid=0 send_seq=141 receive_seq=141 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=63994115 EBBCan: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=803 bytes_read=4404 bytes_retransmit=0 bytes_invalid=0 send_seq=109 receive_seq=109 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=64000223 adj=64013399 CB1: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=834 bytes_read=4649 bytes_retransmit=0 bytes_invalid=0 send_seq=113 receive_seq=113 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=50010764 adj=50005912 heater_bed: target=0 temp=0.0 pwm=0.000 sysload=2.03 cputime=4.407 memavail=728784 print_time=26.111 buffer_time=0.246 print_stall=0 extruder: target=0 temp=0.0 pwm=0.000
Stats 24.9: gcodein=0 mcu: mcu_awake=0.047 mcu_task_avg=0.000018 mcu_task_stddev=0.000012 bytes_write=1163 bytes_read=4631 bytes_retransmit=0 bytes_invalid=0 send_seq=142 receive_seq=142 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=63996574 EBBCan: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=809 bytes_read=4420 bytes_retransmit=0 bytes_invalid=0 send_seq=110 receive_seq=110 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=64001441 adj=64002004 CB1: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=840 bytes_read=4665 bytes_retransmit=0 bytes_invalid=0 send_seq=114 receive_seq=114 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=50003925 adj=50017107 heater_bed: target=0 temp=0.0 pwm=0.000 sysload=2.03 cputime=4.416 memavail=712512 print_time=26.111 buffer_time=0.000 print_stall=0 extruder: target=0 temp=0.0 pwm=0.000
Stats 25.9: gcodein=0 mcu: mcu_awake=0.047 mcu_task_avg=0.000018 mcu_task_stddev=0.000012 bytes_write=1169 bytes_read=4737 bytes_retransmit=0 bytes_invalid=0 send_seq=143 receive_seq=143 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=63997645 EBBCan: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=815 bytes_read=4436 bytes_retransmit=0 bytes_invalid=0 send_seq=111 receive_seq=111 retransmit_seq=0 srtt=0.001 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=64000706 adj=64000433 CB1: mcu_awake=0.006 mcu_task_avg=0.000041 mcu_task_stddev=0.000029 bytes_write=846 bytes_read=4696 bytes_retransmit=0 bytes_invalid=0 send_seq=115 receive_seq=115 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=50001298 adj=50004137 heater_bed: target=0 temp=21.6 pwm=0.000 sysload=2.35 cputime=4.429 memavail=708276 print_time=26.111 buffer_time=0.000 print_stall=0 extruder: target=0 temp=-67.5 pwm=0.000
webhooks client 281473383478848: New connection
Stats 26.9: gcodein=0 mcu: mcu_awake=0.047 mcu_task_avg=0.000018 mcu_task_stddev=0.000012 bytes_write=1175 bytes_read=4827 bytes_retransmit=28 bytes_invalid=0 send_seq=144 receive_seq=143 retransmit_seq=144 srtt=0.000 rttvar=0.000 rto=0.400 ready_bytes=0 upcoming_bytes=0 freq=63997645 EBBCan: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=821 bytes_read=4436 bytes_retransmit=35 bytes_invalid=0 send_seq=112 receive_seq=111 retransmit_seq=112 srtt=0.001 rttvar=0.000 rto=0.800 ready_bytes=0 upcoming_bytes=0 freq=64000706 adj=63998112 CB1: mcu_awake=0.006 mcu_task_avg=0.000041 mcu_task_stddev=0.000029 bytes_write=852 bytes_read=4712 bytes_retransmit=0 bytes_invalid=0 send_seq=116 receive_seq=116 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=50001162 adj=49998885 heater_bed: target=0 temp=21.7 pwm=0.000 sysload=2.35 cputime=4.445 memavail=698672 print_time=26.111 buffer_time=0.000 print_stall=0 extruder: target=0 temp=-88.2 pwm=0.000
webhooks client 281473383478848: Client info {'program': 'Moonraker', 'version': 'v0.8.0-385-gdc00d38'}
webhooks: registering remote method 'shutdown_machine' for connection id: 281473383478848
webhooks: registering remote method 'reboot_machine' for connection id: 281473383478848
webhooks: registering remote method 'pause_job_queue' for connection id: 281473383478848
webhooks: registering remote method 'start_job_queue' for connection id: 281473383478848
Stats 27.9: gcodein=0 mcu: mcu_awake=0.047 mcu_task_avg=0.000018 mcu_task_stddev=0.000012 bytes_write=1181 bytes_read=4947 bytes_retransmit=35 bytes_invalid=0 send_seq=145 receive_seq=143 retransmit_seq=144 srtt=0.000 rttvar=0.000 rto=0.800 ready_bytes=0 upcoming_bytes=0 freq=63997645 EBBCan: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=827 bytes_read=4436 bytes_retransmit=48 bytes_invalid=0 send_seq=113 receive_seq=111 retransmit_seq=113 srtt=0.001 rttvar=0.000 rto=1.600 ready_bytes=0 upcoming_bytes=0 freq=64000706 adj=63999350 CB1: mcu_awake=0.006 mcu_task_avg=0.000041 mcu_task_stddev=0.000029 bytes_write=858 bytes_read=4728 bytes_retransmit=0 bytes_invalid=0 send_seq=117 receive_seq=117 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=50000565 adj=49999699 heater_bed: target=0 temp=21.7 pwm=0.000 sysload=2.35 cputime=4.499 memavail=711808 print_time=26.111 buffer_time=0.000 print_stall=0 extruder: target=0 temp=-99.6 pwm=0.000
Stats 28.9: gcodein=0 mcu: mcu_awake=0.008 mcu_task_avg=0.000020 mcu_task_stddev=0.000028 bytes_write=1187 bytes_read=5052 bytes_retransmit=48 bytes_invalid=0 send_seq=146 receive_seq=143 retransmit_seq=145 srtt=0.000 rttvar=0.000 rto=1.600 ready_bytes=0 upcoming_bytes=0 freq=63997645 EBBCan: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=833 bytes_read=4436 bytes_retransmit=48 bytes_invalid=0 send_seq=114 receive_seq=111 retransmit_seq=113 srtt=0.001 rttvar=0.000 rto=1.600 ready_bytes=0 upcoming_bytes=0 freq=64000706 adj=64000278 CB1: mcu_awake=0.006 mcu_task_avg=0.000041 mcu_task_stddev=0.000029 bytes_write=864 bytes_read=4744 bytes_retransmit=0 bytes_invalid=0 send_seq=118 receive_seq=118 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=50000257 adj=49999278 heater_bed: target=0 temp=21.7 pwm=0.000 sysload=2.35 cputime=4.522 memavail=711432 print_time=26.111 buffer_time=0.000 print_stall=0 extruder: target=0 temp=-88.2 pwm=0.000
Stats 29.9: gcodein=0 mcu: mcu_awake=0.008 mcu_task_avg=0.000020 mcu_task_stddev=0.000028 bytes_write=1193 bytes_read=5142 bytes_retransmit=73 bytes_invalid=0 send_seq=147 receive_seq=143 retransmit_seq=147 srtt=0.000 rttvar=0.000 rto=3.200 ready_bytes=0 upcoming_bytes=0 freq=63997645 EBBCan: mcu_awake=0.000 mcu_task_avg=0.000000 mcu_task_stddev=0.000000 bytes_write=839 bytes_read=4436 bytes_retransmit=73 bytes_invalid=0 send_seq=115 receive_seq=111 retransmit_seq=115 srtt=0.001 rttvar=0.000 rto=3.200 ready_bytes=0 upcoming_bytes=0 freq=64000706 adj=64000974 CB1: mcu_awake=0.006 mcu_task_avg=0.000041 mcu_task_stddev=0.000029 bytes_write=870 bytes_read=4760 bytes_retransmit=0 bytes_invalid=0 send_seq=119 receive_seq=119 retransmit_seq=0 srtt=0.000 rttvar=0.000 rto=0.025 ready_bytes=0 upcoming_bytes=0 freq=49999929 adj=49999343 heater_bed: target=0 temp=21.8 pwm=0.000 sysload=2.35 cputime=4.546 memavail=712744 print_time=26.111 buffer_time=0.000 print_stall=0 extruder: target=0 temp=-75.9 pwm=0.000
Timeout with MCU 'mcu' (eventtime=30.856434)
hcet14
July 15, 2024, 7:03pm
5
Slay:
Lost communication with MCU ‘mcu’
Once I get that error nothing works, no amount of restarting works…
Hi Slay,
very welcome. Did you have a look at Sineos Knowledge Base - Klipper you might search with the keywords of your problem there.
Good luck, hcet14
Slay
July 16, 2024, 1:13am
6
thank you! spent a good bit of time search there after you recommended it but unfortunately I don’t really see anything like what I’m experiencing (or I don’t understand it enough to find the similarities)
Thank you though!
hcet14
July 16, 2024, 8:15pm
7
Usually CAN bus problems are caused to bad wiring or bad connections. You could use the search function here. Here are many good threads discussing that.
Slay
July 16, 2024, 9:13pm
8
I saw that, but I’m just using the canbus cable that came with the btt 2209 canbus. nothing seems wrong from visual inspection and they test fine on continuity
When using the “usb to canbus bridge” mode, if the canbus itself fails it causes a loss of communication with all devices including the “usb to canbus” mcu itself. So, although the error is indicating that Klipper lost communication with the main mcu, it is also possible that the error is due to a fault on the “EBBCan” mcu.
To troubleshoot, try commenting out all the printer.cfg config sections that use the “ebbcan” mcu. If the connection is stable without any peripherals configured on the ebbcan it may help diagnose the issue. (If it is stable, then you can try uncommenting individual config sections to see if one of them is the cause of the failure.)
-Kevin
system
September 18, 2024, 6:59pm
10
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