QNX系统中基于AM3352的多串口通信驱动设计  

Multi-serial Communication Driver Design in QNX System Based on AM3352

作　　者：许学芳[1] 罗铭[1] Xu Xuefang;Luo Ming(Guodian Nanjing Automation Co.,Ltd.,Nanjing 210032,China)

机构地区：[1]国电南京自动化股份有限公司,南京210032

出　　处：《单片机与嵌入式系统应用》2018年第9期58-61,共4页Microcontrollers & Embedded Systems

摘　　要：介绍了一种QNX系统中基于AM3352的多串口通信驱动的设计方法。首先给出了利用FPGA扩展串口的设计电路,以此为基础实现了硬件的配置代码,接着阐述了QNX下串口驱动的工作原理,然后从串口初始化、接收数据、发送数据几个方面讲述了串口驱动的开发过程和方法。In the paper,a design method of multi-serial communication in QNX system based on AM3352 is designed.Firstly,the design circuit of serial ports expanded by FPGA is introduced,on the basis,the codes of configuring hardware is given.Secondly,the operational principle of serial driver is explained.Lastly,the method and development process of serial port drive are introduced from the following aspects of initialization,receiving and transmitting.

关 键 词：QNX AM3352 串口 智能变电站 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]