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Error 1167(device not connected) using usb_dev_bulk in Tiva Workshop

Other Parts Discussed in Thread: TM4C123GH6PM

Hi,

I am trying to run USB bulk example on TM4C123GH6PM and CCS Version 5.4 and windows usb application version is 10636.

I used the usb driver from here:

www.ti.com/.../sw-usb-windrivers

and the window application for usb here:

www.ti.com/.../sw-usb-win

My steps(using TM4C123GH6PM Workshop pdf):

1) Connect usb wire on "DEBUG" port. Build usb_dev_bulk.c example from Tiva Library
2) Burn code to microcontrollers memory
3) Connect usb wire to "DEVICE" port on TM4C.
4) Start windows usb bulk example application.
5) Error comes on command interface that "device not connected"

Anticipating any help?