Detecting when a USB device has been disconnected using usbd_core.c

Question

So, working in the embedded system, I have a USB drive that is used to charge the device, as well as to read some data.

Using usbd_core.c, I can check the status,

• when nothing is related to state 4( USBD_STATE_SUSPENDED).
• As soon as I connect something, the status changes to 1( USBD_STATE_DEFAULT).
• But when I turn it off, the status does not change, it remains 1( USBD_STATE_DEFAULT).

Is this supposed to be the case or am I missing something?

I also tried USBD_Stop()and USBD_Start()to find out if it does not matter, but at the same time I will not turn off its status.

Any ideas?

Answer 1

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