防止I^2C总线锁死的研究  

Design of the Constant Temperature Control Subsystem for Phase and Magnitude Stabilization System in Heavy Iron Accelerator

作　　者：林兴隆[1] 杨锁强[1] 涂海洋 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]空军驻石家庄地区军事代表室,河北石家庄050081

出　　处：《计算机与网络》2012年第10期61-64,共4页Computer & Network

摘　　要：主要论述了I2C总线进入锁死状态的原因,以及进入锁死状态后如何恢复正常通信。首先概要介绍I2C总线及通信的基本原理,然后分析I2C总线通信进入锁死的几种可能及原因,最后给出如何防止I2C总线进入锁死状态,以及进入锁死状态后如何恢复正常通信的方法。This paper mainly describes a design of the constant temperature control system for phase and magnitude stabilization system in heavy iron accelerator. Firstly, the composition and operating principle of the constant temperature control sub-system are introduced. And then, the design of circuit and relative components selection are introduced, including thermal electronic cooler selection, temperature sensor selection and core control chip selection, and fan detection and control circuit design and relative components selection, current and voltage detection Circuit design and relative components selection as well as power amplifier circuit design. Finally, the testing results of the constant temperature control sub-system is presented and analyzed.

关 键 词：I2C总线 锁死 超时 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]