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

wanwan

@dc42 I'm relieved that the worst didn't happen.Thank you

jrockland

soo... you did your own board, and put Duet3D logo on it ? am I missing something here ?

Nuramori

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

soo... you did your own board, and put Duet3D logo on it ? am I missing something here ?

He’s done the same with a duet WiFi variant. He’s shared images and videos on our Facebook support group for the blv cube and has stated he’s selling them, but supposedly doesn’t/can’t sell them outside of China (the veracity of that is up to the reader to decide).

jrockland

@Nuramori ill keep an eye open for those boards in north america and let duet know.

jrockland

@wanwan so to be clear you made cheap chinese copy using both the logo and name of duet AND you want their help to fix your problems ? Am I in a comedy show right now ?

Phaedrux

Well it is open hardware. Though using the logo is not allowed and if being made for sale must be made clear that it is not an official product.

https://github.com/Duet3D/Duet-2-Hardware/blob/master/LICENSE

https://github.com/Duet3D/Duet3-Mainboard-6HC/blob/master/LICENSE

deckingman

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

@wanwan so to be clear you made cheap chinese copy using both the logo and name of duet AND you want their help to fix your problems ? Am I in a comedy show right now ?

Not only does he want help from the Duet team, but he's getting it. Seems like a very strange business model to me.......

wanwan

@Phaedrux no offense. The purpose of making this PCB is not to sell it. I think I should close the theme