Silicon Labs EFM32: Is there a specified order for connecting the USB pins?
EFx32
Ideally, connect VBUS and GND, then connect D+/D-. However, if the connection is made for a period of several microseconds, the IC will not be damaged even if the order is random.
Please also check the SiliconLabs community site.
Experienced FAE
Free consultation is available.
From specific product specifications to parts selection, the Company FAE will answer your technical concerns free of charge. Please feel free to contact us.