Hi All,
My application need the USB to be in device mode only and i have set it up as a pure device mode without OTG. However, it high speed negotiation is enable, the host PC will detect the device as "unknown device". If i disable the high speed, it will work in full speed and device can be recognize by the PC.
Do you guys has any idea what is wrong?
I have tried using another cable, but the result is the same. ( the cable i has is about 50m long).
Regards,
Tom