Hi Kevin,
I am sorry, but the PEx in KDS 3.0 doesn't support Host mode, and for device, only HID and MSD class are supported. You may refer to page 13 of KSDK_1.2.0_Eclipse_Update_Release_Notes.pdf(C:\Freescale\KDS_3.0.0\eclipse\ProcessorExpert) for more details.
so maybe you have to use the source code directly in your project.
Have a great day,
Kan
Freescale Technical Support
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