Linux环境下基于I^2C总线的EEPROM驱动程序  

Design of EEPROM driver based on I^2C-Bus under Linux

作　　者：王立平[1] 王新梅[1] 

机构地区：[1]西安电子科技大学ISN国家重点实验室,陕西西安710071

出　　处：《国外电子元器件》2007年第1期4-7,共4页International Electronic Elements

基　　金：国家自然科研基金(60272057)

摘　　要：I2C总线是由Philips公司开发的用于器件之间连接的2线式双向同步串行总线。Linux内核中针对I2C总线的特性,其设备驱动使用了一种特殊的体系结构。介绍了MPC8250处理器上I2C总线控制器的工作原理,并分析了Linux中I2C总线驱动的体系结构,以MPC8250上的I2C总线为例,给出了I2C总线EEPROM驱动程序的设计方法。The PC-Bus is a 2-wire bidirectional synchronous serial bus that allows computer to connect to ICs,which is initially developed by Philips corporation.In Linux kernel,a special I^2C driver architecture was developed to support I^2C Bus peripheral.Based on the principles of I^2C Bus controller in the MPC8250 processor and the Linux I^2C driver architecture,for MPC8250＇s I^2C Bus as an example, the design method about EEPROM driver based upon I^2C Bus is present.

关 键 词：I^2C总线 MPC8250 LINUX EEPROM 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]