摘要
文中讨论了RS-485总线的几种拓扑形式,分析了总线短路的几种故障模式.提出了一种基于电流检测的短路故障检测技术,并说明了它的工作原理,最后给出了实验结果.该技术可以有效提高基于RS-485物理层的串行高速总线的可靠性.
This paper discussed the several common topologic structure of the RS--485 Bus, and analyzed its short mode of the stub. A new short--circuit detection technology based on current detection techniques has been pro- posed to improve the RS--485 bus reliability, the working scheme also has been described. A real test result has been given. The method can effectively improve the reliability of the high speed serial bus based on RS--485 physical layer.
出处
《微电子学与计算机》
CSCD
北大核心
2011年第4期176-179,共4页
Microelectronics & Computer
