FPGA Implementation of Variable Parameter Data Acquisition Circuit

A variable parameter circuit based on Top-Down method is designed and implemented with FPGA,thus to control data acquisition.The system,in combination of VHDL language and module call idea,implements field programmable control on sampling rate,delay time and batch.Function simulation and hardware implementation show that the system design is reliable,and has better adaptability and expansibility,thus maximally enhancing the system capability of signal acquisition and processing.