USB DFU

[helen]

Excuse me:

                  I want to implement the application allows a connected USB host to remotely tell the app to reboot into the bootloader to allow it to be updated via DFU.Can you provide me with USB DFU 1.1 spec file shown in the figure below？

[Øyvind]

Hello, 

A quick google search gave me this document:

https://www.usb.org/document-library/device-firmware-upgrade-11-new-version-31-aug-2004

Is this what you are looking for?

Kind regards,
Øyvind