摘要
介绍了一种实现光设备旁路保护的方法。着重阐述了如何在MPC8308处理器上开发嵌入式光纤旁路保护系统,主要包括交叉编译环境的搭建、U-BOOT的移植与裁剪、内核的移植、交换芯片的SDK移植与裁剪。MPC8308借助以太网交换芯片BCM56334实现数据传输,通过检测防火墙返回来的心跳信号来判断节点设备工作状态,在防火墙出现异常时,通过看门狗驱动光开关,进行光路切换,保证网络完整性。
A method about the optical bypass protection is introduced. The method to develop the MPC8308 processor in embedded power exchanging system is elaborated emphatically, the establishment of the development environment is mainly included, and modification of the system boot module U- BOOT and transplantation of the kernel, and the transplantation of the exchanging software SDK are also included. With the help of the internet controller BCM56334, the system implements the data transmission and monitors the heartbeat signal which comes from the firewall, when the signal is abnormal, the bypass can drive the watchdog to switch the optical pathway and make it bypass the firewall, which makes the network more integrity.
出处
《电视技术》
北大核心
2014年第7期115-118,共4页
Video Engineering
基金
重庆市科委重点攻关项目(cstc2012gg-yyjsB40003)
