AnsweredAssumed Answered

Continuously receiving get_descriptor in usb

Question asked by Salman Razzaq on Sep 4, 2012
Latest reply on Sep 28, 2012 by swapnilmisal

Hi,

I am trying to program MCF52259 demo kit micro controller. At the moment I am stuck with USB Endpoint 0. When I connect my usb, I get interrupt and then asked for Get_Descriptor. I send the device descriptor then it resets but after resetting, it again asks for device descriptor instead of issuing Set_Address command.

 

What could be the cause of the problem.

 

Here is the sequence of events that I encountered.

 

RESET

SETUP - Get_Descritpor

IN

OUT

RESET

SETUP - Get_Descritpor

IN

OUT

RESET

SETUP - Get_Descritpor

IN

OUT

Outcomes