【摘要】 介绍了一种利用LabVIEW构建SFP(Small Form-factor Pluggable)光模块测试平台的方法。测试平台通过读写计算机并口来映射地址上的数据,控制并口端口的逻辑电平实现计算机并口模拟I2C总线。计算机利用模拟的I2C总线与SFP光模块实现通信。分析了生产者/消费者结构队列状态机并用于设计中,该设计模式可以及时响应前面板动作或外部事件,并且使得状态机的状态变换更加灵活多变。更多还原

【Abstract】 This paper introduces a method of constructing a SFP(small form-factor pluggable) transceiver testing platform by using LabVIEW.The testing platform controls the logic level of parallel port to simulate I2C Bus by reading and writing the data of address which map to the parallel port.The computer can attach to the SFP transceiver by means of the I2C Bus.This paper also analyzes and applies queued state machine-producer consumer architecture,this kind of design style can respond to the action of front panel or external happening without delay.What’s more,it can make transformation of state more flexible and changeable.更多还原