基于串行FRAM的固态存储器构建

摘要

In order to simplify the design complexity of using NAND flash storage to save mass data in embedded systems,a method of constructing solid state memory using Ferroelectric Random Access Memory( FRAM) to achieve fast and efficient access is presented. The optimal protocol of the combination of serial FRAM and RAM is developed. The concept of memory block query and fast query algorithm of serial FRAM data storage are proposed. The storage protocol of the combination of serial FRAM and RAM and the algorithm of block read/write are introduced. The design of motor drive system load tester based on 51 single chip microcomputer and industrial tests show that the solid state memory designed by ferroelectric memory has smaller software and hardware overhead,faster access speed,the realization of simple and reliable. It meets the long-term storage requirements of embedded systems.%为简化嵌入式系统利用NAND闪存保存大容量数据的设计复杂性，提出一种利用铁电随机存储器( FRAM)构建固态存储器实现快速高效存取的方法。制定串行 FRAM 与 RAM 相结合的最优存储协议，给出查询存储器块的概念和串行FRAM存储数据的快速查询算法，介绍串行 FRAM 与 RAM 相结合的存储协议和FM24 W256的块读写算法。51单片机的电机驱动总成载重测试仪设计与工业性实验结果表明，利用FRAM设计的固态存储器，具有软硬件开销小、存取速度快、实现简单可靠的特点，能满足嵌入式系统长期存储的要求。