search

Guilouz / Marlin-SuperRacer-MKS-Nano-V3

Marlin Firmware configured for FLSUN Super Racer with MKS Robin Nano V3 motherboard.
GNU General Public License v3.0
68 stars 23 forks source link

Printer won't boot properly when USB (PC) is connected and SD Card is present #21

Closed dallatorretdu closed 2 years ago

dallatorretdu commented 2 years ago

I tested both your LGX UDisk and LGX SD Card firmware and both have this problem.

Steps to reproduce:

  1. Have a Raspberry (Octoprint) connected to the Type B USB Port
  2. Turn on the Raspberry
  3. Turn on the Printer

Result:

  1. The printer screen will show no text and no temperature
  2. The printer will sometimes show weird behavior (like cooling fan turning on and off intermittently if the nozzle is hot)
  3. No serial connection can be established
  4. No print or action can be initiated from the touchscreen

This doesn't happen if the printer starts without SD card/UDisk or if the printer is started without the Raspberry/PC connected