摘要
以基于OX16PCI958串口芯片的多串口卡驱动为例,分析了VxWorks串口驱动的层次和机理,研究了tty驱动和底层SCC驱动的工作原理。通过对基于OX16PCI958芯片的多串口通信驱动程序的实际编写与参数定制,给出了PPC体系结构微处理器的串口驱动程序设计基本方法、步骤,并指出了该方法对基于VxWorks的安全平台实现高速串行数据通信及安全处理的实用价值。
This paper describes the serial port driver based on the ox16PCI958 communication chip, analyzes the framework of multi-port serial communication driver, and discusses the theory of tty driver and SCC driver in vxworks system. Through this driver design, a solution to multi-port serial communication driver in PPC platform-based vxworks system is proposed, and the value of this design in developing the high-speed and secure serial communication module of security platform also pointed out.
出处
《通信技术》
2012年第1期135-137,共3页
Communications Technology
