摘要
介绍I2C总线的基本概念和工作原理,叙述I2C总线扩展器件ZLG7290的功能特点。在以S3C2410为微控制器,ZLG7290为I2C总线扩展器件的基础上,介绍通过I2C总线读取键盘的硬件、软件设计,该系统设计体现了I2C总线在嵌入式系统设计应用中的重要作用。
This paper introduces the basic conception and working principle of the I2C bus,and describes the functions and characters of the ZLG7290 I2C bus expansion device.Furthermore, the paper introduces the hardware and software de- sign of reading the keyboard via the I2C bus,which is based on the S3C2410 microcontroller and the ZLG7290 I2C bus ex- pansion device.The paper embodies an important function of I2C bus in embedded application.
出处
《电子设计工程》
2009年第10期13-14,共2页
Electronic Design Engineering
