基于嵌入式操作系统VxWorks的I^2C总线驱动设计  

I^2C Bus Driver Based on Embedded Operating System VxWorks

作　　者：卢慧慧 袁玉湘 

机构地区：[1]国网智能电网研究院电工新材料及微电子研究所,北京102211

出　　处：《单片机与嵌入式系统应用》2015年第8期34-37,共4页Microcontrollers & Embedded Systems

基　　金：国家电网公司科技项目(SGRI-WD-71-13-014;SGRI-WD-71-13-008;SGRI-WD-71-13-010;SGRI-WD-71-13-011)

摘　　要：针对目前嵌入式操作系统VxWorks缺乏I2 C设备驱动具体实现的问题,提出了基于VxWorks的I2 C驱动程序的完整设计。利用I2 C协议以及VxWorks下设备驱动机制,通过采用VxWorks内核I/O子系统的层次划分方式,设计了I2 C主控制器驱动实现方法。最后,以RTC芯片RX8025为例,详细说明了I2 C设备驱动的设计流程,实现了基于VxWorks的I2 C驱动程序的完整设计。Aiming at the problem of lacking of I^2C device driver implementation in the embedded operating system VxWorks,a design of I^2C driver program based on VxWorks is proposed. The I^2C master controller driver is designed using the I^2C protocol and device driver mechanism in VxWorks and level classification way of VxWorks kernel level I/O subsystem. Finally, taking RX8025 RTC chip as a spe- cific example, the design flow of I^2C device driver is detailed. So the design of I^2C device driver based on VxWorks is realized.

关 键 词：VXWORKS 嵌入式操作系统 I^2C总线 I^2C主控制器 RX8025 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论] TP311.11[自动化与计算机技术—计算机科学与技术]