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Is it possible to configure the FRDM-K66F to operate in Full-speed rather than High-speed USB?

Question asked by Don Turner on Jun 13, 2017
Latest reply on Jul 1, 2017 by Don Turner

I'm developing a USB device which needs only to run at full speed (12MHz), not high speed (480MHz). I'm using the FRDM-K66F board for development. How can I configure the board's physical USB port to run at full speed? 


I understand that there are 2 USB OTG modules on the board (one supporting LS/FS and the other supporting LS/FS/HS), however, I'm confused about how to specify the former for use with the USB-PHY module. 


Any help greatly appreciated. 


Many thanks,