Help me! I made a duet3 6ch, and the power failed

[wanwan]

Burn down a piece of drive. It doesn't matter. However, there is a memory protection failure, what is the reason to help me!

code_text
2021/2/4下午3:24:50	M122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.2 running on Duet 3 MB6HC v1.01 or later (standalone mode)
Board ID: 08DGM-9561L-D63T4-6J1FA-3S46J-KA0RG
Used output buffers: 3 of 40 (25 max)
=== RTOS ===
Static ram: 149788
Dynamic ram: 92280 of which 404 recycled
Never used RAM 116360, free system stack 204 words
Tasks: NETWORK(ready,193) ETHERNET(blocked,109) HEAT(blocked,362) CanReceiv(blocked,927) CanSender(blocked,371) CanClock(blocked,349) TMC(blocked,65) MAIN(running,1148) IDLE(ready,19)
Owned mutexes:
=== Platform ===
Last reset 00:14:41 ago, cause: power up
Last software reset at 2021-02-04 14:59, reason: MemoryProtectionFault mmarValid daccViol, GCodes spinning, available RAM 116360, slot 1
Software reset code 0x4163 HFSR 0x00000000 CFSR 0x00000082 ICSR 0x00400804 BFAR 0x0000003a SP 0x2041fbb8 Task MAIN Freestk 1660 ok
Stack: 00000000 00000001 00000001 00000000 0000001d 0046ad93 0046b178 610f0000 2042ae18 00000000 2042ae18 0046b0ff 2042ae18 00000000 6ca7badd 0000000a 2042ae18 2042c3ac 00000000 00000001 00000000 0046ad93 2042c3ac 00000000 00000000 0046b0ed 2042c3ac
Error status: 0x00
Aux0 errors 0,0,0
Aux1 errors 0,0,0
MCU temperature: min 28.8, current 31.2, max 31.5
Supply voltage: min 3.9, current 3.9, max 4.0, under voltage events: 0, over voltage events: 0, power good: no
12V rail voltage: min 3.8, current 3.8, max 4.1, under voltage events: 0
Driver 0: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 1: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 2: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 3: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 4: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 5: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Date/time: 2021-02-04 15:24:49
Slowest loop: 1.53ms; fastest: 0.05ms
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 25.0MBytes/sec
SD card longest read time 0.7ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 125, maxWait 0ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 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, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle 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
Code queue is empty.
=== Network ===
Slowest loop: 1.26ms; fastest: 0.02ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions Telnet(0), 0 sessions
HTTP sessions: 1 of 8
- Ethernet -
State: active
Error counts: 0 0 1 0 0
Socket states: 5 2 2 2 2 0 0 0
=== CAN ===
Messages queued 0, send timeouts 4100, received 0, lost 0, longest wait 0ms for reply type 0, free buffers 48)

[Rushmere3D]

@wanwan Not sure where you got that but it's not a Duet3D board. I'd suggest asking the seller for help.

[wanwan]

@Rushmere3D Thank you. I made it myself

[Rushmere3D]

@wanwan That's impressive to be fair and I'm not the person to help, lol.

[o_lampe]

@wanwan
Impressive indeed.
Do these two parts touch and cause a shortcut?

[wanwan]

@o_lampe I checked. No problem. And they're parallel connection

[dc42]

Are you using our standard RRF 3.2 firmware binary, or have you built your own?

[wanwan]

@dc42 Use the official standard firmware. Now the problem has been solved. thank you

[o_lampe]

@wanwan
If you have a few more empty PCBs, you could populate them step-by-step, beginning with the DC-DC power converter and test every function one at a time.
Or do a shortcut test on an empty PCB, maybe some inner layers aren't OK?

It seems, there is a lot of solder on the pads, maybe there's a heatsink/GND pad under the MPU or the MOSFETs which got too much solderpaste and caused a shortcut?

[wanwan]

@o_lampe I want to have a cheap DUET3. I decided to do it myself. Now it doesn't seem like a good idea

[dc42]

@wanwan said in Help me! I made a duet3 6ch, and the power failed:

@dc42 Use the official standard firmware. Now the problem has been solved. thank you

How did you solve it?

I asked about the firmware because the stack trace didn't seem to match up exactly with the map file for the standard firmware binary.

[wanwan]

@dc42 I made a mistake 。Down to 3.0, the problem still exists.

[wanwan]

@dc42 This problem is an error that occurred after the driver was burned

[dc42]

@wanwan said in Help me! I made a duet3 6ch, and the power failed:

@dc42 This problem is an error that occurred after the driver was burned

Can you explain more? I would not expect the firmware to crash even if a driver failed, unless the failed driver fed injection current into the MCU sufficient to cause it to behave incorrectly. What type of driver did you connect that failed?

[wanwan]

@dc42 Do you mean that the current breaks down the MUC when the drive is burned?
I connected a piece of TMC5160A

[dc42]

@wanwan said in Help me! I made a duet3 6ch, and the power failed:

Do you mean that the current breaks down the MUC when the drive is burned?

It's possible that a burned driver may feed current into the MCU pin driving Step, Dir, or one of the SPI signals. The input protection diodes shunt this current to Vcc (3.3V). If the current is small enough, operation of the chip will be unaffected. With somewhat higher current, the chip may malfunction, but no permanent damage will be done. Higher still and permanent damage will be done.

What I would ideally like to know is whether the firmware crashed because it didn't get the expected response from the driver (which I would regard as a firmware bug to be fixed), or the MCU crashed because of injection current.

[Veti]

@wanwan said in Help me! I made a duet3 6ch, and the power failed:

I decided to do it myself. Now it doesn't seem like a good idea

did the parts work out to be more in the end?

[wanwan]

@dc42 After hearing your explanation, I think it's ，the MCU crashed because of injection current

[wanwan]

This is just generated

2021/2/4下午9:57:21	M122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.2 running on Duet 3 MB6HC v1.01 or later (standalone mode)
Board ID: 08DGM-9561L-D63T4-6J1FA-3S46J-KA0RG
Used output buffers: 1 of 40 (25 max)
=== RTOS ===
Static ram: 149788
Dynamic ram: 92280 of which 404 recycled
Never used RAM 116360, free system stack 187 words
Tasks: NETWORK(ready,223) ETHERNET(blocked,109) HEAT(blocked,353) CanReceiv(blocked,927) CanSender(blocked,371) CanClock(blocked,349) TMC(blocked,65) MAIN(running,1148) IDLE(ready,19)
Owned mutexes:
=== Platform ===
Last reset 02:36:41 ago, cause: power up
Last software reset details not available
Error status: 0x00
Aux0 errors 0,0,0
Aux1 errors 0,0,0
MCU temperature: min 31.7, current 32.3, max 32.9
Supply voltage: min 3.9, current 3.9, max 4.0, under voltage events: 0, over voltage events: 0, power good: no
12V rail voltage: min 3.8, current 3.9, max 7.1, under voltage events: 0
Driver 0: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 1: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 2: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 3: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 4: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Driver 5: position 0, ok, reads 0, writes 0 timeouts 0, SG min/max not available
Date/time: 2021-02-04 21:57:18
Slowest loop: 1.41ms; fastest: 0.05ms
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 25.0MBytes/sec
SD card longest read time 0.7ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 125, maxWait 0ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 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, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle 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
Code queue is empty.
=== Network ===
Slowest loop: 0.97ms; fastest: 0.02ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions Telnet(0), 0 sessions
HTTP sessions: 1 of 8
- Ethernet -
State: active
Error counts: 0 0 0 0 0
Socket states: 5 2 2 2 2 0 0 0
=== CAN ===
Messages queued 0, send timeouts 46881, received 0, lost 0, longest wait 0ms

[dc42]

@wanwan said in Help me! I made a duet3 6ch, and the power failed:

Last reset 02:36:41 ago, cause: power up

So if the reset was unexplained, it was caused by a loss of power.