Design of PIC32 MCU Large Capacity Storage System Based on CPLD

In this paper,mass PIC32 MCU flash storage system is designed in which the CPLD serve as the storage control unit in order to achieve storage and retrieval of the collected experimental high-speed large-capacity data.The composition of the system programs and hardware interface circuit as well as design ideas of CPLD control unit modular are introduced.The system design is simulated in QuartusII 9.0 software environment.Finally,the resulting timing simulation waveforms show the correctness and feasibility of system design.