Hello,
Previously, we managed to communicate with a device using arduino DUE (SAM) without any trouble.
Then, with the same device, We are trying to use the mkrzero (SAMD) as usb host. the setup is composed of a power bank to have 5V in the usb and a OTG cable.
The probleme is related the SETUP packet to indicate that the device has to send its description. the device send NAK signal, and the USB_RETRY_LIMIT is reached.
I don't understand why communication between the device and the mkrzero can't be initialized whereas there is no problem with the DUE.
We performed some expriments with a mouse and MKRZero no issue...
If someone has any clue or explanation, it would be appreciated