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I have been trying to initialise my Adafruit 7" TFT for some time but no matter what combination of programs and library"s I try I have only ever got a blank white screen at best.

I have been mainly using David Smarts RA8875 library https://os.mbed.com/components/RA8875-Based-Display/ and variations of it. Somebody has made a fork of it for use with the K64F"s but this still does not work. https://os.mbed.com/teams/FRDM-K64F-Code-Share/code/RA8875_KeyPadDemo/