光模块I^(2)C通信自动化测试系统设计  

Design of an optical module I^(2)C communication automation test system

作　　者：王安忆 王衡 王洪义 王麟 WANG Anyi;WANG Heng;WANG Hongyi;WANG Lin(Qingdao Hisense Broadband Multimedia Technology Co.,Ltd.,Qingdao 266000,China)

机构地区：[1]青岛海信宽带多媒体技术有限公司,山东青岛266000

出　　处：《现代电子技术》2024年第2期95-99,共5页Modern Electronics Technique

摘　　要：光模块是光纤通信系统的核心部件,不同速率、不同封装的光模块均需通过I^(2)C通信方式与主机进行监控数据交换,并实时执行主机发送的控制指令,因此介绍一种针对光模块I^(2)C通信的测试系统。首先通过MCU的QSPI和PDMA功能结合,实现高精度指令控制,并且通过指令拼接实现不同速率下的所有I^(2)C时序指标测试及逻辑测试;然后介绍系统的工作原理、硬软件设计方式;最后对不同产品进行不同速率下的I^(2)C测试。测试结果证明,该系统的可行性强并大幅度提高了测试效率。Optical modules are the core components of optical communication systems.Optical modules with different speeds and packages need to exchange monitoring data with the host by means of I^(2)C communication,and execute real‐time control commands sent by the host.Therefore,a testing system for optical module I^(2)C communication is introduced.The highprecision command control is realized by combing QSPI and PDMA functions of MCU,and all I^(2)C timing indicators tests and logic tests at different speeds are achieved by means of the instruction splicing.The working principle,hardware and software design method of the system are introduced.I^(2)C tests at different rates were conducted.The testing results show that this system has strong feasibility and can improve testing efficiency substantially.

关 键 词：光模块 I^(2)C 通信自动化 测试系统 PDMA 时域编码 

分 类 号：TN06‐34[电子电信—物理电子学]