The PD specification calls for 200-600pf on CC1 and CC2 (each). With 330pf on both CC1 and CC2 to GND, I see intermittent errors (missed PD messages, not received). It is infrequent but it happens. Removing these capacitors clears it up. What is the ...

Using USBPD 1.3.0, DRP_VDM project running on P-NUCLEO-USB002. Adding SOURCING_DEVICE macro.STM32 is UFP (after Data Role Swap). The DFP requests Discover Identity of the SOP' but the STM32 answers with GoodCRC and never ACKs the Discover Identity.It...