Design of Multifunctional Digital Clock Based on VHDL

Three feasible proposals are given aiming at the design of multifunctional digital clock and the strong and weak points among the proposals are compared.And then,taking all kinds of strong and weak points into consideration,the multifunctional digital electronic clock is designed by using FPGA.The modules of the digital electronic clock are designed using programmable device FPGA and hardware description language VHDL in accordance with the method of top-down design,and each module are simulated with software.