基于AT91RM9200和嵌入式Linux的I2C总线驱动程序  

I2C Bus Driver Based on AT91RM9200 and Embedded Linux

作　　者：张圣华[1] 喻晓峰[1] 石崇林[1] 

机构地区：[1]国防科学技术大学信息系统与管理学院,湖南长沙410073

出　　处：《兵工自动化》2007年第7期92-93,共2页Ordnance Industry Automation

摘　　要：基于AT91RM9200和嵌入式Linux的I2C总线驱动程序,根据I2C总线的时序特性,经配置电源管理控制器(PMC),使TWI时钟和TWI接口与高级中断控制器(AIC)连接,通过I2C总线实现其数据传输。即以TWI主机发送和主机接收2种工作模式,编写其读写地址和数据的程序,通过其读写操作得以完成。I2C bus driver based on AT91RM9200 and embedded linux, according to the timing of the I2C bus, configure the Power Management Controler （PMC） to make the TWI clock and the TWI interface to connect with the advanced interrupt controller（AIC）. The data was transmitted via the I2C bus. Namely, according to the two TWI modes of operation, master transmitter mode and master receiver mode, the program was compiled to read and write the address and data, and can achieve the read and write operation.

关 键 词：AT91RM9200 嵌入式LINUX I2C总线 驱动程序 TWI 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]