@AndMaz we haven't documented it because it's liable to change between firmware versions. If you post the specific software reset data that you are interested in, I will attempt to explain it.

@chrishamm Anything else I can help with?

@chrishamm
thank you for the fast response - that might be - but i guess it is some kind of a software problem.

I did a print recovery with M916 (without rebooting the SBC or the duet) to resume the print job and the machine was not able to "connect" the DDA segments. It was moving like 0-jerk, every segment with acceleration, steady and deceleration.
So I did the following:

pause print checked jerk, acceleration, input shaping and so on ... reapplied the values increased the movment queue
and the machine was able to move "normal" again. 5.12.2023, 14:02:17 M595 P120 S150 5.12.2023, 14:01:34 M595 DDAs 60, DMs 125, GracePeriod 10 5.12.2023, 14:01:09 M204 P800 T1250 5.12.2023, 14:01:04 M201 X1500.00 Y1500.00 Z70.00 E3500.00 5.12.2023, 14:00:58 M203 X14400.00 Y14400.00 Z1200.00 E3600.00 5.12.2023, 14:00:50 M593 P"zvddd" F40 5.12.2023, 14:00:44 M566 X600.0 Y600.0 Z12.00 E480.00 P1 5.12.2023, 14:00:12 M593 Input shaping 'zvddd' at 40.0Hz damping factor 0.10, min. acceleration 10.0, impulses 0.112 0.438 0.795 0.968 with durations (ms) 12.56 12.56 12.56 12.56 5.12.2023, 13:59:57 M25 Printing paused at X475.6 Y237.3 Z23.2 5.12.2023, 13:59:51 Resume state saved 5.12.2023, 13:58:03 M204 Maximum printing acceleration 800.0, maximum travel acceleration 1250.0 mm/sec^2 5.12.2023, 13:57:48 M201 Accelerations (mm/sec^2): X: 1500.0, Y: 1500.0, Z: 70.0, E: 3500.0 5.12.2023, 13:55:50 M203 Max speeds (mm/min): X: 14400.0, Y: 14400.0, Z: 1200.0, E: 3600.0, min. speed 30.00 5.12.2023, 13:55:34 M566 Maximum jerk rates (mm/min): X: 600.0, Y: 600.0, Z: 12.0, E: 480.0, jerk policy: 1

M122 output when the segments where not conencted

5.12.2023, 13:55:54 M122 === Diagnostics === RepRapFirmware for Duet 3 MB6HC version 3.5.0-rc.1 (2023-08-31 16:19:24) running on Duet 3 MB6HC v1.02 or later (SBC mode) Board ID: 08DJM-9P63L-DJ3T8-6JKD4-3SJ6K-9A77A Used output buffers: 1 of 40 (18 max) === RTOS === Static ram: 154852 Dynamic ram: 89940 of which 1896 recycled Never used RAM 94864, free system stack 117 words Tasks: SBC(2,ready,0.8%,250) HEAT(3,nWait,0.0%,323) Move(4,nWait,0.0%,214) CanReceiv(6,nWait,0.0%,941) CanSender(5,nWait,0.0%,335) CanClock(7,delaying,0.0%,343) TMC(4,nWait,8.6%,61) MAIN(2,running,90.5%,137) IDLE(0,ready,0.0%,30), total 100.0% Owned mutexes: HTTP(MAIN) === Platform === Last reset 26:21:04 ago, cause: power up Last software reset at 2023-11-30 10:06, reason: User, Platform spinning, available RAM 96472, slot 2 Software reset code 0x6000 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0044a000 BFAR 0x00000000 SP 0x00000000 Task SBC Freestk 0 n/a Error status: 0x00 MCU temperature: min 33.9, current 34.3, max 35.0 Supply voltage: min 24.0, current 24.1, max 24.2, under voltage events: 0, over voltage events: 0, power good: yes 12V rail voltage: min 11.7, current 12.3, max 12.8, under voltage events: 0 Heap OK, handles allocated/used 99/9, heap memory allocated/used/recyclable 2048/416/240, gc cycles 386 Events: 413 queued, 413 completed Driver 0: ok, SG min 35, mspos 936, reads 11744, writes 2 timeouts 0 Driver 1: ok, SG min 29, mspos 56, reads 11744, writes 2 timeouts 0 Driver 2: standstill, SG min 0, mspos 8, reads 11736, writes 10 timeouts 0 Driver 3: standstill, SG min 0, mspos 504, reads 11736, writes 10 timeouts 0 Driver 4: standstill, SG min 0, mspos 344, reads 11736, writes 10 timeouts 0 Driver 5: ok, SG min 0, mspos 884, reads 11739, writes 8 timeouts 0 Date/time: 2023-12-05 13:55:53 Slowest loop: 490.41ms; fastest: 0.05ms === Storage === Free file entries: 20 SD card 0 not detected, interface speed: 37.5MBytes/sec SD card longest read time 0.0ms, write time 0.0ms, max retries 0 === Move === DMs created 125, segments created 66, maxWait 2176309ms, bed compensation in use: mesh, height map offset 0.000, ebfmin -0.90, ebfmax 1.00 next step interrupt due in 69 ticks, disabled Moves shaped first try 22, on retry 1, too short 607, wrong shape 5, maybepossible 0 === DDARing 0 === Scheduled moves 680, completed 679, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 4], CDDA state 3 === DDARing 1 === Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0 Heater 0 is on, I-accum = 0.8 Heater 1 is on, I-accum = 0.3 === GCodes === Movement locks held by File2, null HTTP* is doing "M122" in state(s) 0 Telnet is idle in state(s) 0 File* is doing "G1 X464.493988 Y230.830002 E0.026320" in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger* is idle in state(s) 0 Queue* is idle in state(s) 0 LCD is idle in state(s) 0 SBC is idle in state(s) 0 Daemon* is idle in state(s) 0 0, running macro Aux2 is idle in state(s) 0 Autopause* is idle in state(s) 0 File2* is doing "M116" in state(s) 0 0, running macro Queue2 is idle in state(s) 0 Q0 segments left 0, axes/extruders owned 0x80000003 Q1 segments left 0, axes/extruders owned 0x0000000 Code queue 1 is empty === Filament sensors === Extruder 0: pos 174.02, errs: frame 143 parity 0 ovrun 0 pol 0 ovdue 0 === CAN === Messages queued 19971, received 0, lost 0, boc 0 Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 50 (min 50), ts 11095/0/0 Tx timeouts 0,0,11095,0,0,8876 last cancelled message type 4514 dest 127 === SBC interface === Transfer state: 5, failed transfers: 0, checksum errors: 3 RX/TX seq numbers: 21216/35495 SPI underruns 3, overruns 3 State: 5, disconnects: 1, timeouts: 1 total, 1 by SBC, IAP RAM available 0x25a98 Buffer RX/TX: 2824/400-4080, open files: 0 === Duet Control Server === Duet Control Server version 3.5.0-rc.1 (2023-09-01 07:22:07) File /opt/dsf/sd/gcodes/UCB___-000001_MUSTER-A TEST_31percent_infill_1_0mm_flat_0.25mm_PA_MBL480_1d9h1m.gcode is selected, processing Failed to deserialize the following properties: - MoveSegmentation -> Int32 from 2.0 File: Buffered code: G1 X464.494 Y230.83 E0.02632 Buffered code: G1 X464.708 Y231.006 E0.01245 Buffered code: G1 X464.98 Y231.228 E0.01577 Buffered code: G1 X465.296 Y231.459 E0.01758 Buffered code: G1 X465.539 Y231.621 E0.01313 Buffered code: G1 X465.859 Y231.826 E0.01706 Buffered code: G1 X466.096 Y231.958 E0.01218 Buffered code: G1 X466.505 Y232.18 E0.0209 Buffered code: G1 X466.979 Y232.392 E0.02334 Buffered code: G1 X467.1 Y232.719 E0.01567 Buffered code: G1 X467.404 Y233.38 E0.03268 Buffered code: G1 X467.76 Y234.015 E0.03268 Buffered code: G1 X468.164 Y234.619 E0.03268 Buffered code: G1 X468.615 Y235.191 E0.03268 Buffered code: G1 X469.109 Y235.724 E0.03267 Buffered code: G1 X469.643 Y236.218 E0.03268 Buffered code: G1 X470.214 Y236.668 E0.03267 Buffered code: G1 X470.819 Y237.072 E0.03267 Buffered code: G1 X471.454 Y237.427 E0.03267 Buffered code: G1 X472.114 Y237.731 E0.03267 Buffered code: G1 X472.796 Y237.983 E0.03267 Buffered code: G1 X473.496 Y238.18 E0.03267 Buffered code: G1 X474.209 Y238.322 E0.03266 Buffered code: G1 X474.931 Y238.407 E0.03267 Buffered code: G1 X475.536 Y238.431 E0.02716 Buffered code: G1 X487.005 Y238.431 E0.51523 Buffered code: G1 X487.246 Y238.792 E0.01949 Buffered code: G1 X487.46 Y239.081 E0.01616 Buffered code: G1 X487.708 Y239.395 E0.01798 Buffered code: G1 X487.842 Y239.54 E0.00884 Buffered code: G1 X488.263 Y240.029 E0.02902 Buffered code: G1 X488.758 Y240.453 E0.02927 Buffered codes: 1536 bytes total Daemon: >> Doing macro daemon.g, started by system File2: Buffered code: M116 ; wait for all heaters Buffered codes: 24 bytes total > Suspended code: M107 > Suspended code: G21 ; set units to millimeters > Suspended code: G90 ; use absolute coordinates > Suspended code: M83 ; use relative distances for extrusion > Suspended code: ;LAYER_CHANGE > Suspended code: ;HEIGHT:0.5 > Suspended code: ; custom gcode: before_layer_gcode > Suspended code: ;BEFORE_LAYER_CHANGE > Suspended code: ; custom gcode end: before_layer_gcode > Suspended code: G10 ; retract > Suspended code: G1 Z0.5 F21000 > Suspended code: ; custom gcode: layer_gcode > Suspended code: ;AFTER_LAYER_CHANGE > Suspended code: ; custom gcode end: layer_gcode > Suspended code: G92 E0 > Suspended code: G1 X250.964 Y86.801 > Suspended code: G11 ; unretract >> Doing macro 0:/sys/meltingplot/print_start, started by M98 P"0:/sys/meltingplot/print_start" >> Number of flush requests: 1 Code buffer space: 2424 Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 0 Full transfers per second: 39.19, max time between full transfers: 44.6ms, max pin wait times: 34.7ms/3.6ms Codes per second: 1.44 Maximum length of RX/TX data transfers: 4712/3328

M122 after reapplying the values

5.12.2023, 14:10:43 M122 === Diagnostics === RepRapFirmware for Duet 3 MB6HC version 3.5.0-rc.1 (2023-08-31 16:19:24) running on Duet 3 MB6HC v1.02 or later (SBC mode) Board ID: 08DJM-9P63L-DJ3T8-6JKD4-3SJ6K-9A77A Used output buffers: 1 of 40 (18 max) === RTOS === Static ram: 154852 Dynamic ram: 89940 of which 1896 recycled Never used RAM 63864, free system stack 117 words Tasks: SBC(2,ready,0.9%,250) HEAT(3,nWait,0.0%,323) Move(4,nWait,1.7%,214) CanReceiv(6,nWait,0.0%,941) CanSender(5,nWait,0.0%,335) CanClock(7,delaying,0.0%,343) TMC(4,nWait,9.0%,61) MAIN(2,running,88.3%,137) IDLE(0,ready,0.0%,30), total 100.0% Owned mutexes: HTTP(MAIN) === Platform === Last reset 26:35:52 ago, cause: power up Last software reset at 2023-11-30 10:06, reason: User, Platform spinning, available RAM 96472, slot 2 Software reset code 0x6000 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0044a000 BFAR 0x00000000 SP 0x00000000 Task SBC Freestk 0 n/a Error status: 0x00 MCU temperature: min 34.1, current 34.4, max 34.7 Supply voltage: min 23.9, current 24.0, max 24.2, under voltage events: 0, over voltage events: 0, power good: yes 12V rail voltage: min 11.8, current 12.2, max 12.7, under voltage events: 0 Heap OK, handles allocated/used 99/9, heap memory allocated/used/recyclable 2048/696/520, gc cycles 389 Events: 413 queued, 413 completed Driver 0: ok, SG min 14, mspos 789, reads 31259, writes 0 timeouts 0 Driver 1: ok, SG min 25, mspos 879, reads 31259, writes 0 timeouts 0 Driver 2: standstill, SG min 0, mspos 8, reads 31259, writes 0 timeouts 0 Driver 3: standstill, SG min 0, mspos 504, reads 31259, writes 0 timeouts 0 Driver 4: standstill, SG min 0, mspos 344, reads 31259, writes 0 timeouts 0 Driver 5: ok, SG min 0, mspos 932, reads 31254, writes 4 timeouts 0 Date/time: 2023-12-05 14:10:42 Slowest loop: 42.73ms; fastest: 0.05ms === Storage === Free file entries: 20 SD card 0 not detected, interface speed: 37.5MBytes/sec SD card longest read time 0.0ms, write time 0.0ms, max retries 0 === Move === DMs created 150, segments created 66, maxWait 155087ms, bed compensation in use: mesh, height map offset 0.000, ebfmin -1.00, ebfmax 1.00 next step interrupt due in 25 ticks, disabled Moves shaped first try 357, on retry 34, too short 2673, wrong shape 12949, maybepossible 256 === DDARing 0 === Scheduled moves 26971, completed 26851, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state 3 === DDARing 1 === Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0 Heater 0 is on, I-accum = 0.0 Heater 1 is on, I-accum = 0.3 === GCodes === Movement locks held by null, null HTTP* is doing "M122" in state(s) 0 Telnet is idle in state(s) 0 File* is doing "G1 X502.369995 Y308.734009 E0.013370" in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger* is idle in state(s) 0 Queue* is idle in state(s) 0 LCD is idle in state(s) 0 SBC is idle in state(s) 0 Daemon* is idle in state(s) 0 Aux2 is idle in state(s) 0 Autopause* is idle in state(s) 0 File2* is idle in state(s) 0 Queue2 is idle in state(s) 0 Q0 segments left 1, axes/extruders owned 0x80000007 Code queue 0 is empty Q1 segments left 0, axes/extruders owned 0x0000000 Code queue 1 is empty === Filament sensors === Extruder 0: pos 203.55, errs: frame 143 parity 0 ovrun 0 pol 0 ovdue 0 === CAN === Messages queued 7995, received 0, lost 0, boc 0 Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 50 (min 50), ts 4442/0/0 Tx timeouts 0,0,4442,0,0,3553 last cancelled message type 30 dest 127 === SBC interface === Transfer state: 5, failed transfers: 0, checksum errors: 3 RX/TX seq numbers: 57385/6128 SPI underruns 3, overruns 3 State: 5, disconnects: 1, timeouts: 1 total, 1 by SBC, IAP RAM available 0x25a98 Buffer RX/TX: 3888/984-4080, open files: 0 === Duet Control Server === Duet Control Server version 3.5.0-rc.1 (2023-09-01 07:22:07) File /opt/dsf/sd/gcodes/UCB___-000001_MUSTER-A TEST_31percent_infill_1_0mm_flat_0.25mm_PA_MBL480_1d9h1m.gcode is selected, processing Failed to deserialize the following properties: - MoveSegmentation -> Int32 from 2.0 File: Buffered code: G1 X502.338 Y308.436 E0.01345 Buffered code: G1 X502.26 Y308.139 E0.01382 Buffered code: G1 X502.122 Y307.841 E0.01474 Buffered code: G1 X501.909 Y307.544 E0.01641 Buffered code: G1 X501.622 Y307.246 E0.01858 Buffered code: G1 X500.942 Y306.651 E0.0406 Buffered code: G1 X500.633 Y306.353 E0.01929 Buffered code: G1 X500.373 Y306.056 E0.01774 Buffered code: G1 X500.164 Y305.758 E0.01632 Buffered code: G1 X500.001 Y305.461 E0.01526 Buffered code: G1 X499.782 Y304.866 E0.02848 Buffered code: G1 X499.684 Y304.27 E0.0271 Buffered code: G1 X499.679 Y303.973 E0.01337 Buffered code: G1 X499.711 Y303.675 E0.01345 Buffered code: G1 X499.79 Y303.378 E0.01382 Buffered code: G1 X499.928 Y303.08 E0.01474 Buffered code: G1 X500.14 Y302.783 E0.01641 Buffered code: G1 X500.427 Y302.485 E0.01858 Buffered code: G1 X501.107 Y301.89 E0.0406 Buffered code: G1 X501.417 Y301.592 E0.01929 Buffered code: G1 X501.676 Y301.295 E0.01774 Buffered code: G1 X501.885 Y300.997 E0.01632 Buffered code: G1 X502.048 Y300.699 E0.01526 Buffered code: G1 X502.267 Y300.104 E0.02848 Buffered code: G1 X502.366 Y299.509 E0.0271 Buffered code: G1 X502.37 Y299.212 E0.01337 Buffered code: G1 X502.338 Y298.914 E0.01345 Buffered code: G1 X502.26 Y298.616 E0.01382 Buffered code: G1 X502.122 Y298.319 E0.01474 Buffered code: G1 X501.909 Y298.021 E0.01641 Buffered code: G1 X501.622 Y297.724 E0.01858 Buffered codes: 1488 bytes total File2: >> Finishing macro 0:/sys/meltingplot/print_start, started by M98 P"0:/sys/meltingplot/print_start" Code buffer space: 2616 Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 0 Full transfers per second: 40.72, max time between full transfers: 41.7ms, max pin wait times: 34.2ms/2.4ms Codes per second: 30.48 Maximum length of RX/TX data transfers: 4712/3328

Just in case someone else follows this: I just saw a new Wifi module firmware (2.1beta6) has been released that addresses some Wifi connection issues if I understand the release notes correctly. I am currently giving it a try and will report what happens here.

@dc42 The problem has definitely returned. For me, the clearest demonstration of the y slope is using a 30x20x20 cube (x,y,z), printed with no fill and no top with 3 perimeters. Strangely, a 20x20x20 cube printed in the same way appears vertical. the 30x20x20 cube printed in vase mode has only a slight slope for me. I have just reverted to 3.4.6, and the same gcode file of 30x20x20 with 3 perimeters prints vertical.

@dc42 @Phaedrux ?

@dc42 Perfekt, sounds promising. I will give it a try on monday 🙂

@timschneider thanks for pointing out the bug in RRF when you try to set a variable to that very large value. I will fix it in the 3.5 source code.

I suggest you use

var testVar1 = null

instead.

@droftarts I have the same behavior, I have RGBW LEDs, set with M950 E1 C"duex.pwm5" T2

@gloomyandy yes I think it does - AFAIR Christian implemented a fix to cause both channels to wait for temperature.

@p8blr thanks for the reminder. It's our intention that when you send M18 the brake solenoid is first turned off (to apply the brake), than after a short delay to allow the brake to engage the signal is sent to disable the driver. As the brake may take a little while to engage, if the delay is not long enough then there might be a small amount of motor movement before the brake engages. Is this what you are seeing, or is the brake solenoid continuing to receive power long after the M18 command is executed, and before any other movement commands are sent?

Please try the firmware build at https://www.dropbox.com/scl/fo/tjznycpk7bv7sj71p0ssl/h?rlkey=096p4nvgmigyrb20jj8olg3wu&dl=0 and test which this is still not working.

@dc42 It works! And it works flawlessly!
With this build I've done some multihour prints with many tool changes and they worked perfect, no more resets (at least from thar reason).
For the PanelDue, using PanelDueFirmware-3.5.0-rc7-testcomm DWC is more responsive, more fluid, it updates more often and the connection is more consistent.
As a side note - annoying but don't bother me too much - after some time the DWC disappears altogether. I can ping the board, but no DWC. But until that point works flawlessly. By the way, trying to disable and reenable the wifi module (idle or printing) resulting in a stuckinspinloop when trying to enable it again.

Again, thank you very much for your time and help solving this issue! 😊

@Diamondback thanks, I'll flag this as solved.

@dc42 Ah okay, that's great!

@Adrian52 thanks, I've added that newline.

@dc42 the answers were able to resolve the problem, thanks everyone for the help!

No, i'm not using G92 during my print at all. It's being used for the homing process of the coupler axis once, but that's about it.

My profuse apologies for:

my (very) late answer digging up this old topic (Halloween trick or treat ?!)

but my answer is still relevant (based on the code base of the RRF 3.5.0 rc1 and 3.4.6).

@dc42 said in G30: unexpected probe dive motion range:

If you set the dive height to some value H [...] the code starts the dive at (trigger_height + H) and ends it if the probe is not triggered first at (trigger_height - H)

That is my expectation, but not what the G30 command currently does.

You will notice in the code of G30 command the mention of platform.AxisMinimum(Z_AXIS), variable which I can't make sense of:

ms.coords[Z_AXIS] = (IsAxisHomed(Z_AXIS)) ? platform.AxisMinimum(Z_AXIS) - zp->GetDiveHeight() + zp->GetActualTriggerHeight()

This is in contrast to the probing code of the G29 command, which works as you described without ever using platform.AxisMinimum(Z_AXIS):

ms.coords[Z_AXIS] = -zp->GetDiveHeight() + zp->GetActualTriggerHeight();

Hence my (old yet still relevant) pull request.

Hopefully this patch would not bring any regression, however it might save multiple RRF user from less than desirable unexpected nozzle crashes.

@Jimborr Ah, yes, that seems to be something else that affects Delta printers.