The Design of Washer Controller based on VHDL

VHDL is an important component of EDA.The design of digital circuit by means of VHDL will enormously reduce the time as well as the developmental cost.This paper makes use of the design -modular,to introduce the VHDL design process of washer controller. This design succeeded in the real-time simulation and the confirmati on.And it carried out by downloading to FPGA,and obtained the anticipated effect.