一种基于FPGA的STM 1接口通信装置

STM 1 Interface Communication Device Based on FPGA

本文结合目前电网中精准切负荷系统的通信需求,给出一种基于FPGA的STM-1接口装置设计方案。本方案以ZYNQ平台为基础,采用PL侧FPGA控制STM-1接口PHY芯片进行串并转换,充分利用FPGA内部可编程逻辑进行编解码设计和数据并行处理,提高了STM-1接口报文的解析和组帧效率,且实现简单。本文给出装置经过实际测试和验证,运行稳定可靠,已开始在精准切负荷系统中推广应用。

This paper analyzes the communication requirement of the precise load control system and gives a STM-1 interface communication device based on FPGA.Based on the ZYNQ platform,the design of this device uses the FPGA of PL part to control the STM-1 interface physical chip used for serial parallel conversion.This design takes advantage of the internal programmable logic of FPGA to realize the codec and the data parallel processing.This scheme can promote the efficiency of STM-1 interface message parsing and framing and is easy to implement.The device has been tested and verified actually,and it has been proved stable and reliable.The device would be used widely in the precise load control system.