研究了传统误码仪的工作原理与结构，并利用VHDL语言在FPGA芯片上模拟实现了绝大部分的传统误码仪的功能，如LCD显示驱动，串口通信驱动，误码测试，数据存储芯片驱动等功能.-Research on the traditional instrument of the working principle of error with the structure and language use of VHDL simulation in the FPGA chip realize most of th