双端口RAM在STD总线与单片机通讯中的应用

The Application of Dual-port RAM in the Communication between STD-bus and Singlechip

在工业控制系统的实际应用中,通常会遇到STD总线系统中的主控模板与其它单片机系统之间的高速通讯问题,而普通的串行通信往往满足不了它的通信速率要求。某气象测量设备通过在STD总线与单片机之间应用高速双端口RAM IDT7134,用主控模板与单片机系统共同对双端口RAM进行读写操作的方法,经济、高效地解决了这一问题。通过IDT7134在气象测量设备中的应用实例,介绍了双口RAM的原理和使用方法。

In the practical applications of industrial control systems, high-speed communication problems between the main control template of STD-bus and other SCM System often encountered.The general methods of serial communication can＇t satisfy its high-speed requirements. A meteorological measuring equipment places a high-speed dual-port RAM IDT7134 between STD-bus and SCM. The main control template of STD-bus and other SCM System common to read, write the dual-port RAM. This method is an economical and efficient solution to the problem,This paper provides an application of the Dual-port RAM of IDT7134 in the a meteorological measuring equipment and introduces its nrincinle and usage.