摘要
在以MCS-51单片机为核心的应用系统中,经常需要将其单个串口扩展为多个串口,以实现多串口通信。以AT89S51单片机为例,提出了基于GM8123/8125的串口扩展方案,实际应用表明该方案使用简单、通讯可靠、与标准串口通信格式兼容,解决了单片机在串行通信应用系统中的串口局限问题。
In the application system with MCS-51 single-chip Microcontroller as the core,often need to be a single serial port ex- pansion for multiple serial port,this paper takes AT89S51 single-chip Microcontroller as an example,proposes an extended scheme of GM8123/8125 based on the serial port.The actual application shows that this scheme is simple to use,reliable communication,and the standard serial communication format compatibility,solve serial limitation problem in serial communication of single chip microcomputer application system.
出处
《工业控制计算机》
2014年第7期71-72,共2页
Industrial Control Computer
