By studying and analyzing the functional properties of Embedded Microprocessor Unit of LPC2378 and OCM12864-1 LCD module
a LCD menu display system based on LPC2378 system board has been constructed. Both the interface circuit and program design methods between the LPC2378 and the LCD module are discussed. The timing compatibility problem between high speed ARM processor and slow speed LCD model is solved and the initialization procedures are provided. This design has been proved feasible according to the actual operation.