For a project, I have 2 identical Pico W boards. One board is connected to some sensors a LoRa device, a vibration motor, a touch control module, and a OLED display. After installing all the required files for the display and doing some animations and stuff I left the board disconnected from any source until the next day. The next day after trying to connect the board to my PC and edit the code with Thonny I realized that neither Thonny nor the computer was recognizing the device (Unknown USB device (Device Description Request Failed) - inside Device Manager); I tried a different cable a different PC but still the same. Right before this happened when plugging some power the code was running but after some tries that also stopped.
I used the other board as a debug tool to retrieve the .bit file with the storage content, and I got the code back. With the other board as a debugger, I tried deleting everything on the board and reinstalling the firmware, but nothing. I connected the working board to where the other board was and ran the code, and it worked fine; after some try I started to get some errors coming from the initialization of the sh1106 display, happening in the library file (with nothing changed from the first tries). Then again the same thing happened as the first board the code ran once when the board had power and then silence, with the same: Unknown USB device (Device Description Request Failed.
I don't know what could have happened, the only common thing is the OLED display which I added a few days ago to the project. I spent one entire day writing code specifically for the display and it worked fine.
All the sensors are receiving power from the board; it seems that are a lot of stuff connected to it but there is no time where even half of them run simultaneously.
I used the other board as a debug tool to retrieve the .bit file with the storage content, and I got the code back. With the other board as a debugger, I tried deleting everything on the board and reinstalling the firmware, but nothing. I connected the working board to where the other board was and ran the code, and it worked fine; after some try I started to get some errors coming from the initialization of the sh1106 display, happening in the library file (with nothing changed from the first tries). Then again the same thing happened as the first board the code ran once when the board had power and then silence, with the same: Unknown USB device (Device Description Request Failed.
I don't know what could have happened, the only common thing is the OLED display which I added a few days ago to the project. I spent one entire day writing code specifically for the display and it worked fine.
All the sensors are receiving power from the board; it seems that are a lot of stuff connected to it but there is no time where even half of them run simultaneously.
Statistics: Posted by timotei_irimia — Sun Jun 30, 2024 9:51 pm — Replies 0 — Views 50