Software System for FDP100K Device in Data-Path Application Abstract?: A complete FPGA Development Environment is implemented.It aims to support the first FPGA device—FDP100K(FDP:FPGA for Data-Path)in China.Novel algorithms for FDP100K architecture are introduced in every module,especially for the Technology Mapping module and Placement & Routing module.Complete hardware/software co-test indicates that all modules work correctly,and their interfaces with the Control Module and the hardware are correct.This development software system can be expected for implementing data-path circuits and other kinds of circuits correctly and efficiently.