Firstly, the principle and characteristics of CAN bus are presented. Then the principle and realization of PC-CAN adapter based on CAN bus by some technologies such as EPLD are introduced.

• 文中首先简述了CAN总线原理及其特点,然后重点阐述了采用EPLD(可编程逻辑器件)等技术实现基于CAN总线的PC-CAN适配卡的原理和实现。