The firmware has been successfully flashed into the development board of rp2350 USB a. For Logitech, Thunder Snake, some miscellaneous mice can be identified and used normally, but for other miscellaneous mice, it is not supported. I used USB to check the device program to check the vid of this unsupported mouse device. Pid, description and other information, modified the firmware code, but after several attempts, it still can’t be recognized. I think it’s a problem with my modification of the firmware code. I would like to ask if any friends can give me some suggestions? Which firmware code functions need to be modified? Thank you
If you’re having issues with Low Speed devices specifically, that may be because of a pull-up resistor on the D+ USB line that’s present on the RP2350-USB-A board.