AnsweredAssumed Answered

KSDK 1.1.0 Bootloader isn't Resetting USB Register Settings

Question asked by Derek Valleroy on Mar 11, 2015
Latest reply on Mar 18, 2015 by jeremyzhou

Hello,

I have an application on the K22 that gets bootloaded by the KSDK 1.1.0 bootloader.  The bootloader and the application both use USB.  I've found that I need to manually reset all the USB registers after the bootload to get my application's USB to work.  Has anyone else come across this?  I guess I would have thought that the bootloader (FSL_Kinetis_Bootloader_1_1_0) would do this before jumping to the application.  Maybe I'm missing something.

Outcomes