Altera公司的stratixIV 系列的原理图和pcb文件，注意，是capture及pdf格式的原理图和allegro格式的PCB文件，稍微修改修改就可以用在您的设计中，让fpga的硬件设计变得简单和高效。-Altera Corporation stratixIV series of schematic and pcb files, note that the capture and pdf format of the schematic and PCB files of the allegro format, modified slightly modified can be used in your design, fpga hardware design simple and efficient.