I was successful in connecting the Newhaven 320 x 240 TFT display. I used the ColorFormats example for the STM32F746 DISCO board. Of course it cuts some of the screen off because of the resolution difference, but it works. And looks quite good.
But when I create a new application using the STM32F746 Discovery template and build and upload the program to the board, the diplay is blank. BTW, I am using the default ew_bsp_display.c intialization code. Oh, backlight boost convertor on the DISCO board produces 36 volts. I only need 19 volts for the Newhaven display, so I connected an external power supply to the backlight LEDs.
Any thoughts as to why the new application won't work?