@dc42 The MCU isn't getting hot. After leaving it on for 10 minutes when I touch the MCU surface I can its warm

@dc42

No joy. It stays in the "WiFi module is being started"

M552 S-1
21:39:47.832 -> ok
M552 S0
21:40:20.508 -> ok
M552
21:40:39.616 -> WiFi module is being started

@dc42 said in short-to-ground errors After Firmware upgrade/downgrade:

It looks like the WiFi update has been successful. Have you run M115 to check that the main firmware you are running really is 2.03?
If you confirm that you are running 2.03, check that you have no M587 commands in config.g. Send M552 S-1 to reset the WiFi module, M552 S0 to put it in idle mode, and M588 S"*" to clear the existing WiFi data. Then set up your access point details using M587.

I had no joy. Here is the output of the commands I ran:

SENDING:M115
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.03 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2019-06-13b2

SENDING:M552 S-1
WiFi module stopped

SENDING:M552 S0

SENDING:M588 S"*"
M588: Failed to reset the WiFi module to factory settings

SENDING:M587 S"My_WIFI" P"SuperSecretPassword"
M587: Failed to add SSID to remembered list

SENDING:M587
M587: Failed to retrieve network list

SENDING:M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.03 running on Duet WiFi 1.02 or later
Board ID: 08DDM-9FAM2-LW4S4-6J9D2-3SN6P-K2VMY
Used output buffers: 1 of 24 (10 max)
=== RTOS ===
Static ram: 25680
Dynamic ram: 93340 of which 164 recycled
Exception stack ram used: 288
Never used ram: 11600
Tasks: NETWORK(ready,548) HEAT(blocked,916) MAIN(running,3820) IDLE(ready,160)
Owned mutexes:
=== Platform ===
Last reset 00:07:00 ago, cause: power up
Last software reset time unknown, reason: User, spinning module GCodes, available RAM 7888 bytes (slot 2)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00400000 BFAR 0xe000ed38 SP 0xffffffff Task 0xffffffff
Error status: 0
[ERROR] Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 54.6, current 55.1, max 55.4
Supply voltage: min 1.6, current 1.7, max 1.7, under voltage events: 0, over voltage events: 0, power good: no
Driver 0: ok, SG min/max not available
Driver 1: ok, SG min/max not available
Driver 2: ok, SG min/max not available
Driver 3: ok, SG min/max not available
Driver 4: ok, SG min/max not available
Date/time: 1970-01-01 00:00:00
Cache data hit count 833357449
Slowest loop: 100.83ms; fastest: 0.07ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
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
serial is ready with "M122" in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 0.17ms; fastest: 0.01ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 0 of 8

• WiFi -
  Network state is starting
  WiFi module is disabled
  Failed messages: pending 0, notready 5, noresp 0
  Socket states: 0 0 0 0 0 0 0 0

I performed all of these commands only on USB power, when the stepper motors errors dont appear.

Regarding the stepper motors, I guess it is possible for a metal swarf to have fallen on the board. Are there specific pins I should have a look at on the drivers and processor side?

@bearer the led on the esp wifi board was flashing fast during the programming of the wifi firmware

I also verified that the file sizes matched that was on the releases repo for that version.

@dc42 Is my board doomed for the bin then?

@dc42 said in short-to-ground errors After Firmware upgrade/downgrade:

Over temperature shutdown messages on multiple drivers suggest that SPI communication with the drivers has broken down. That could be caused by shorted wiring on the expansion connector. Have you disconnected everything except power and USB from the Duet?

That is correct. Nothing is connected other than those two. Nothing in expansion connector.

I have also connected a PanelDue to it instead of the USB and I get the same errors reported on it.

@dc42 said in short-to-ground errors After Firmware upgrade/downgrade:

When you do that, does the blue LED on the WiFi module flash rapidly, and do you get a message that the firmware has been updated successfully? Also please check that the DuetWiFiServer.bin file you copied to the SD card has a file length that matches the one in the release area at https://github.com/dc42/RepRapFirmware/releases/tag/2.03.

Regarding the WiFi module. This is the output I get when I flash the WiFi module:
SENDING:M997 S1
Trying to connect at 230400 baud:
success
Erasing 4096 bytes...
Erasing 212992 bytes...
Uploading file...
5% complete
10% complete
15% complete
20% complete
25% complete
30% complete
35% complete
40% complete
45% complete
50% complete
55% complete
60% complete
65% complete
70% complete
75% complete
80% complete
85% complete
90% complete
95% complete
Upload successful

I have checked there is nothing that can possibly cause any shorts

DuetWifi Board Version 1.2
I haven't used my 3D printer in about 6 months. I was messing around with a LED laser module on my printer. Everything worked up to this point.

I decided to load the 2.03 firmware. The WiFi module stopped working and when I connected via usb I got the following error:

Error: short-to-ground reported by driver(s) 0 1 2 3
[ERROR] Error: short-to-ground reported by driver(s) 0 1 2 3

Error: over temperature shutdown reported by driver(s) 0 1 2 3
[ERROR] Error: over temperature shutdown reported by driver(s) 0 1 2 3

Regarding the WiFi, I have upgraded the DuetWiFiServer.bin with M997 S1 from the 2.03 zip package multiple times. After issuing a M552 S0 the wifi module remains disabled.

I have even reflashed 2.02 (firmware and the wifi firmware) but no luck. And now back to 2.03 and now I'm completely lost.

I have disconnected everything. The only two cables are the input voltage and the USB cable.

SENDING:M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.03 running on Duet WiFi 1.02 or later
Board ID: 08DDM-9FAM2-LW4S4-6J9D2-3SN6P-K2VMY
Used output buffers: 1 of 24 (11 max)
=== RTOS ===
Static ram: 25680
Dynamic ram: 93244 of which 816 recycled
Exception stack ram used: 320
Never used ram: 11012
Tasks: NETWORK(ready,548) HEAT(blocked,1236) MAIN(running,3784) IDLE(ready,160)
Owned mutexes:
=== Platform ===
Last reset 00:03:26 ago, cause: reset button or watchdog
Last software reset time unknown, reason: Heat task stuck, spinning module PrintMonitor, available RAM 10672 bytes (slot 3)
Software reset code 0x00a9 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f80f BFAR 0xe000ed38 SP 0x20004afc Task 0x4e49414d
Stack: 00424d21 0043f36e a1000000 00000000 00000000 3edb6db7 b7b4d800 3331bb4c 40000000 3f317200 b5ddea0e 388aa908 bb35fe81 3c4192f5 00000000 00000000 3f800000 00000000 00000000 60000010 0043f361 20002c14 20002c14
Error status: 0
[ERROR] Error status: 0

Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 59.1, current 59.1, max 59.3
Supply voltage: min 24.3, current 24.4, max 24.4, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: temperature-shutdown! short-to-ground standstill, SG min/max not available
Driver 1: temperature-shutdown! short-to-ground standstill, SG min/max not available
Driver 2: temperature-shutdown! short-to-ground standstill, SG min/max not available
Driver 3: temperature-shutdown! short-to-ground standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 1970-01-01 00:00:00
Cache data hit count 502180789
Slowest loop: 0.17ms; fastest: 0.08ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 169, MinFreeDm: 169, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
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
serial is ready with "M122" in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 0.17ms; fastest: 0.01ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 0 of 8

• WiFi -
  Network state is starting
  WiFi module is disabled
  Failed messages: pending 0, notready 0, noresp 0
  Socket states: 0 0 0 0 0 0 0 0