Posted on October 08, 2015 at 13:07According the datasheet of the L476rx on page 187;
3. No external termination series resistors are required on USB_DP (D+) and USB_DM (D-); the matching impedance is already included in the embedded driver. If I understand this correct you can don't need the 2x27 ohm resistors you see in almost every design with USB.
If this is true, why are they then on the Stm32L476G-Discovery?
