摘要
针对基于ARM7内核微处理器和μClinux操作系统的嵌入式系统,介绍了利用IMP16C554芯片对其进行多串口扩展。给出了系统设计方案,详细阐述了多串口设备驱动程序的设计方法,并重点介绍了对IMP16C554芯片的初始化设置和基于中断工作模式的扩展串行接口编程。
Multiple serial ports extension with chip IMP16C554 is conducted to the embedded system based on ARM7 kernel microprocessor and μClinux OS. Besides method of the system project,the design procedure of multiple serial ports is de： picted,as well as hardware setting initialization of IMP16C554 and asynchronous uart port programming on interruption working mode.
出处
《现代电子技术》
2007年第2期94-96,109,共4页
Modern Electronics Technique
