软件是适用于FPGA的VHDL程序，目的是用于满足IEC61850－9协议的电子式互感器采样，软件采用的是AD976芯片，能同时进行6个通道的采样。-The software is based on vhdl for FPGA,which is used for electronic transformer fulfil IEC6185-9 protocol.the AD chip is AD976,it works at the state of 6 channels at the same