基于I2C总线的多通道温度实时采集系统的设计与实现研究分析 机电一体化专业专业

目 录摘 要 ................................................................................... Error: Reference source not found Abstract ............................................................................. Error: Reference source not found 1 绪论 .......................................................................................................................................... 3 1.1 数据采集系统及发展历程 ............................................................................................ 3 1.2 I2C 总线及优点 ............................................................................................................. 3 2 系统方案 .................................................................................................................................. 4 2.1 系统方案简介 ................................................................................................................ 4 2.2 系统总体方案的确定 .................................................................................................... 4 2.2.1 主控制器方案的选型 .......................................................................................... 4 2.2.2 I2C 扩展芯片的选型 ........................................................................................... 4 2.2.3 温度传感器的选型 .............................................................................................. 5 2.2.4 LCD 液晶驱动器的选型 ..................................................................................... 5 2.2.5 A/D 转换器的选型 .............................................................................................. 5 2.3 总结 ................................................................................................................................ 5 3 P89LPC922 单片机及 I2C 接口 ............................................................................................ 7 3.1 P89LPC9...