引言自1985年Xilinx公司发明第一片FPGA(现场可编程逻辑器件)以来,短短20多年,FPGA以其灵活可编程、开发周期短、开发投入少等特点,取得了惊人的发展,越来越多地取代了ASIC的市场,广泛应用于通信、医疗、仪器、网络设备等领域。目前FPGA市场主要是Xilinx和Altera公司两强争霸,Actel、Lattice公司等后起之秀也对这块蛋糕虎视眈 Introduction Since 1985, when Xilinx invented the first FPGA (Field Programmable Logic Device), just over 20 years ago, FPGA has made remarkable progress with its features of flexible and programmable, short development cycle and low development investment. The more replace the ASIC market, widely used in communications, medical equipment, network equipment and other fields. At present, the FPGA market is dominated by Xilinx and Altera, and rising stars such as Actel and Lattice are also eyeing the cake