设计并实现了一种基于FPGA的智能多主单总线——Smart Multi-Master Single Bus。这种新型总线可广泛应用于工业控制领域和电力系统继电保护领域。基于FPGA的SM2总线不需要握手信号,采用自主收发机制,收发透明,具有智能、多主、高速、节约引脚、节约面积、低成本的优点,可挂接多种插件、总线设备,实现各插件、各总线设备之间自由、高速、高效的通信。

An FPGA-based intelligent multi-master single bus—Smart Multi-Master Single Bus is designed and implemented.This new type of bus can be widely used in industrial control and power system relay protection.The SM2 bus based on FPGA does not need handshake signals,adopts the mechanism of independent transceiver,transmits and receives transparently.It has the advantages of intelligence,multi-master,high speed,pin saving,area saving,and low cost,and can be connected to a variety of plug-ins and bus devices to achieve free high-speed and efficient communication between plug-ins and bus devices.