I am trying to interface my STM32f4xx Discovery Board to ST7920 LCD using 8-Parallel Mode. Well I have tried a lot . But the LCD does not display any character. I have followed all the exact initialization procedure for the LCD as per the LCD datasheet. After initialization I just want to desplay hello world on the LCD. But itdoes not work at all . If any one can help. I am attaching the LCD datasheet. Here the code I have made.. . The code compiles and I am even able read the data from the DDRAM and CGRAM of the LCD. But I ma unable to display any data on LCD.