Design of LED Lattice Written Screen Controlled by MSP430F227MCU

This design is based on TI Company's MSP430F2274 MCU as the main controller,the light pen as the detection tools,and the 12864 liquid crystal with keys and character library as a LED lattice writing display system which is auxiliary equipment.Through setting the key we can access to the corresponding function blocks,and use light pen to detect the position on the LED lattice screen.So that it can realize the function of lighten and draw brightens,at the same time display the positing on the 12864 liquid crystal screen.