April Hjort

5275 USB device initialization

Discussion created by April Hjort on Aug 24, 2006
Latest reply on Oct 18, 2006 by Andrew Watts
I'm having a problem initializing the USB device for the 5275.  Following the steps in the reference manual,
I first configured GPIO for USB.
Then I issued a device reset.
I downloaded the stringBufs, CfgBufs and EpBufs(one EpBufs per logical endpoint, total of 4).  After downloading these, I wait for the USB_DAR[CFG] bit to clear, and it never does!! 
Any help would be appreciated, I'm pretty desperate at this point!  BTW, I'm using the 5275 eval board.

Outcomes