Design of Data Acquisition System Based on FPGA

The high speed data acquisition system based on FPGA,which is the core logic control module of the system is designed.According the method of topdown,FPGA is divided into some functional modules.The designing method and controlling flow of each module are discussed in detail.The VHDL language is adopted in the FPGA module.Software design and system simulation are completed in the integration circumstance of Max+PlusⅡ.The paper provides the simulation figures of some FPGA modules.The system not only can acquire 24route field analog signals with 100 kHz of maximal frequency and 4route frequency signals,but also has the ability of selfcheck by acquiring 8route inner channel signals.