Hi Jake,
Did you update the TWR-K65F180M debugging firmware to support Pemicro?
If not the ZIP is attached. Unplug the USB debug cable, hold reset button down, plug-in USB debug cable, and system should enumerate as a MSD.
Then drag-n-drop the *.bin file to the BOOTLOADER disk. After a few seconds new firmware should be loaded. Unplug and re-plug and you should have the Pemico OpenSDA interface enumerated.
Then back in debugger you should see it.
Regards,
David
PS ignore the name of the ZIP and file...it really does work with TWR-K65F180M.