摘要
从双绞线控制器局域网(Wire-CAN)总线网络的缺陷和光纤优良的抗电磁干扰、衰减小的特性出发,详细分析了双绞线CAN总线的接口协议,通过改造CAN总线的物理层,提出光纤媒介的CAN总线信号传输方案,并给出具体接口电路的设计,节点的逻辑控制由复杂可编程逻辑器件(CPLD)完成。
The optical fiber is received the public attention in many fields due to it＇s good electromagnetic compatibility and lower attenuation. The limitation of wire-controller area network（CAN） bus is discussed in detail, and its interface protocol is particularly analyzed. By rebuilding the physical layer of CAN bus,a scheme for transmitting the CAN bus signal through optical fiber is proposed. The interface circuits between fiber-CAN bus and network nodes are designed,and the nodes are controlled by CPLD.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2006年第3期318-321,共4页
Semiconductor Optoelectronics
