基于I2C总线的多通道温度实时采集系统的设计与实现傅煜目录摘要...................................................................................Error:ReferencesourcenotfoundAbstract.............................................................................Error:Referencesourcenotfound1绪论..........................................................................................................................................31.1数据采集系统及发展历程............................................................................................31.2I2C总线及优点.............................................................................................................32系统方案..................................................................................................................................42.1系统方案简介................................................................................................................42.2系统总体方案的确定....................................................................................................42.2.1主控制器方案的选型..........................................................................................42.2.2I2C扩展芯片的选型...........................................................................................42.2.3温度传感器的选型..............................................................................................42.2.4LCD液晶驱动器的选型.....................................................................................52.2.5A/D转换器的选型..............................................................................................52.3总结................................................................................................................................53P89LPC922单片机及I2C接口............................................................................................73.1P89LPC922单片机概述............................................................................................
