I want to interface NHD-2.7-12864WDW3 OLED display having SSD1322 controller with STM32F407G-DISC1.I am doing 3 wire SPI Communication, So i have connected all 20 PINS as follows:Pin1 ---> GNDPin2 ---> 3VPin3 ---> NC (No connection)Pin4 ---> PD9 (DC...