Abstract:

This paper presents a method for the implementations of a vending machine based on FSM (Finite State Machine).By using the finite state machine and VHDL,this paper describes the process of vending machines,a series of moves such as system initialization,administrator settings,merchandise selection,confirmation of the cancellation,coin processing,financial statistics,goods updating and changing.Meanwhile,the system also includes a button coding module,scanning display module and voice prompts module,allowing users to operate in a more humane way.

Key words: vending machines;finite state machine;FSM;VHDL