【摘要】 基于MEMS传感器的姿态测量系统以体积小、功耗低、实时性好、方便使用等优点而得到广泛应用,传感器信息除用于实时处理进行姿态解算以外,更需要长时间保存以达到校对、仿真、数值分析等多种用途。针对大容量存储在实际使用中疑难较多的问题,主要介绍了大容量Flash存储器AT45DB321D在姿态测量系统中的应用,描述了其基本性能及在姿态测量系统中的硬件连接和软件设计,重点讨论了利用单片机I/O接口模拟SPI操作以及操作指令的具体实现等问题。更多还原

【Abstract】 The MEMS attitude measurement system based on MEMS sensor has been widely used with its advantages of small volume,low cost,easy to use,properties of real-time,etc.Mostly,the sensor information is not only used for real-time processing to determine the attitude,but also required to be stored for revision,simulation,numerical analysis,and so on.Based on the difficult problem of large capacity storage in actual use,this paper mainly introduces the application of AT45DB321D in the attitude measurement system,and describes the basic performance,the hardware connection and software design.This paper particularly illustrates the realization of the analog SPI using I /O port and operation instruction in software program.更多还原