USB device Bus Turnaround Timeout

[martindusek]

Hello,

I adapted USB stack HID device example and made USB generic HID device. Unfortunately, I receive bus turnaround timeout error during enumeration after Device descriptor is sent. The consequence is that Windows doesn't recognize my device.

Can you please advise anything?

Martin

[DerekLau]

If you have modified the example, please check the descriptors that you have modified.

If you haven't, please tell us what is the version of USB stack HID example and what device you are using.

[martindusek · Accepted solution]

The issue has been solved - we forget to add 2u2 capacitor to VOUT33 pin. Therefore the output of the regulator was unstable.