摘要
文中详细介绍了PS/2接口协议的内容、电气特性和标准键盘的第二套键盘扫描码集。给出了基于嵌入式系统的PS/2接口的软、硬件实现方法 ,并介绍了工控PC外接双键盘的解决方案。通过使用模拟开关CD4052巧妙地解决了工控PC外接双键盘的冲突问题。
The protocol of PS/2 and it's interface features of electrical parameters are analyzed.The standard scan code set 2 is also introduced.A real keyboard with PS/2 interface based on embedded system is presented. Both software and hardware implementation are also given.The conflict problem of attaching two keyboards on one PC by using the chip CD4052 is resolved.
出处
《国外电子元器件》
2004年第4期14-18,共5页
International Electronic Elements
