【摘要】 基于温湿度内漏检测系统介绍了使用新型SHT71传感器的生成电路及主要特点;并重点说明了和微控制器之间串行通讯时采用的校验方法—循环冗余校验法(CRC)及其原理、优点;并根据SHT71循环冗余校验的硬件生成电路给出了它的算法及软件实现方法,实践结果表明:用软件实现CRC校验过程既简单实用又成本低廉,十分有效。更多还原

【Abstract】 The hardware realization method and difference of humidity and temperature sensor SHT71 are presented. The theory and advantage of cyclic redundancy check between SHT71 and MCU are especially introduced. It tells algorithm, software realization according to the hardware realization circuit of CRC in SHT71 and simply make introduction about CRCs effect in practice.更多还原