基于CPLD的光纤通信实验编码发送模块

Encoding transmission module of optical fiber communication experiment based on CPLD

设计并制作了一种基于CPLD的光纤通信实验编码发送模块。该系统分为光信号发送模块和CPLD编码模块,其中光信号发送模块以模拟电路为基础,且按电流走向布置探测点;CPLD编码模块以CPLD为基础,采用自顶向下模块化的设计方法,结合Verilog HDL语言与VHDL语言,实现数据处理核心功能,同时依据输出功能布置探测点。

The paper have designed an encoding transmission module of optical fiber communication experi- ment based on CPLD. The system is divided into two modules including optical signal transmitting module and CPLD encoding module. The former module is based on analog circuit and the test points are arranged ac- cording to the current trend. While the latter is based on CPLD, and adopts the method of top-down and mod- ularization, which combines Verilog HDL with VHDL design. It can realize the core function of data processing, and the test points are arranged according to the output function.