I have completely read the thread from 2017, https://www.avrfreaks.net/forum/custom-atmega32u4-pcb-connects-windows-unknown-usb-device?skey=unknown%20usb%20device%20atmega32u4 . This thread is custom pc2, electric boogaloo.
I have gone through the thread and recreated (almost) all of the troubleshooting tips, this is my progress:
- Both 22 ohm resistors in the D+/D- lines from the usb port are checking out at 22 ohms on the meter.
- Drivers are installed
- Re checked all solder joints, they look fine
Need help using scope to check crystal frequency, cannot seem to get a good reading. crystal is 16mhz FA 238 package
Does pin 33, the HWB need to be connected to ground?
Is there something I'm missing? the atmega32u4 comes with a bootloader already
I am pretty new at all this, so any input is greatly appreciated.