I upgraded the mainboard in my E3P to a Creality 4.2.7 silent board 32 bit. My Octopi does not connect to my printer now.
My terminal in Octoprint states:
Changing monitoring state from "Offline" to "Detecting serial connection"
Performing autodetection with 0 port/baudrate candidates:
Changing monitoring state from "Detecting serial connection" to "Error: No more candidates to test, and no working port/baudrate combination detected."
Changing monitoring state from "Error: No more candidates to test, and no working port/baudrate combination detected." to "Offline (Error: No more candidates to test, and no working port/baudrate combination detected.)"
What did you already try to solve it?
I have reflashed the firmware with Marlin 2.0.X.
I have tried setting the Baud rate to 115200.
I have reset my Octopi.
I have tried different USB cables.
I have covered the 5V pin on the USB connector.
Have you tried running in safe mode and if so did it solve the issue?
Yes and no it did not resolve the problem.
Complete Logs
octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support! Not log excerpts, complete logs.)
Terminal Tab:
Changing monitoring state from "Offline" to "Detecting serial connection"
Performing autodetection with 0 port/baudrate candidates:
Changing monitoring state from "Detecting serial connection" to "Error: No more candidates to test, and no working port/baudrate combination detected."
Changing monitoring state from "Error: No more candidates to test, and no working port/baudrate combination detected." to "Offline (Error: No more candidates to test, and no working port/baudrate combination detected.)"
Additional information about your setup
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
My setup is:
Raspberry Pi 3B
Ender 3 Pro with 32-bit Creality v4.2.7 silent mainboard
Firmware is Marlin v1.0.1
Octoprint v1.4.2
Unfortunately the pi doesn't see the printer at all.
Did you try the cable with the usb tape? Try one without the tape - maybe you taped the wrong pin.
You should see something like this when the connection is established
[188954.350949] usb 1-1.2: New USB device found, idVendor=1d50, idProduct=6029, bcdDevice= 1.00
I just got a new mainboard in to see if it was the problem. Still having the same issue. Right now I'm running the stock firmware and have tried both taped cable and non tape cable. I am upgrading to this firmware https://github.com/MarlinFirmware/Configurations.git
Me too. It seems like the micro USB port is not enabled in the firmware. I’m trying to find it in the config file to make sure it is. Thanks for the assistance. Happy thanksgiving.
No, the stock configuration didn't work nor did the Marlin 2.x. I have tried changing the serial port numbers with no luck. Hopefully, you will see something that I'm missing. I have attached the config.h and config.adv. Configuration.h.zip (29.6 KB) Configuration_adv.h.zip (45.1 KB)
Well, ponterface does not recognize the printer. This is the second mainboard and they both do the same thing. I am curious if the pins are mapped wrong. For BLtouch to work I had to change pin 32 to pin 17. Just a thought. I've even tried the latest Marlin bugfix. Never realized how much I miss Octoprint till I cant use it.
I was working on the same setup today.
I installed the 4.2.7 silent mainboard from Creality, and flashed their version of the latest firmware:
--4.2.7 Ender-3 pro 32bit Marlin2.0.1 BLtouch V1.3.1with adapter board TMC2225.rar
--BL touch installed as well.
--Just updated Octoprint to recent auto-release
--tried two different USB cables,
--with/without tape over +5V
--Couldn't connect with Pronterface either.
Hope that helps confirm what you're seeing.
I will work on this issue in parallel; hopefully one of us finds the solution.
-John
