USB EP0DATADONE event never generated

[aero]

I get to the point of having the EP0SETUP event being generated, I check BMREQUEST and WVALUEH and see that it's a request for the device descriptor,this is on windows and the WLENGTHH is 64 bytes. I load the device descriptor into EPIN[0].PTR and the size into EPIN[0].CNT start the STARTEPIN0 task, I wait for the STARTED and ENDEPIN0 events both of which are generated successfully and then I wait for the EP0DATADONE event - it's never generated, what am I doing wrong?

Thanks

[Stian Røed Hafskjold]

Hi, which chip revision are you using? Have you been testing with any SDK examples? There are a few erratas for the USB peripheral which are fixed in the SDK drivers, so I think you should use this as a starting point. You can check the errata here

[aero]

Hi, I'm using engineering A, I don't see anything in the errata about EP0DATADONE. I've only tried one of the SDK examples and it works fine.

[Stian Røed Hafskjold]

There are so many issues with the USB on eng. A that it is close to non functional. I think you're better off using the stack in the SDK.

http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52840.EngA.errata/anomaly_840_104.html