An implementation method of controlling the liquid crystal display based on the SOPC is put forward. The method used the development environment of QuartusⅡ and NiosII to complete the design of system

hardware and software

realize the function of dot matrix LCD display module. In the LCD display with the font library

the theory of the Chinese word stock and English word stock were described. An application program example of graphical display was also provided. The design contains features such as highly reliability and easily portability. It is easy to change the display of dot matrix LCD display module and expand the displayed content by making a little change.