基于SDRAM数据存储器的设计与开发

Design and Development of SDRAM-Based Data Memory

摘要: 在电涡流传感器动态校准过程中，涉及到大量的数据读写。本文针对传统硬件测试软件的弊端，提出一种便携式视频数据逻辑分析存储器的设计方法，这种分析存储器能够针对网络多媒体数据进行采集、分析和存储等操作。在不影响网络正常传输的前提下，针对电涡流传感器动态校准数据进行采集、存储和分析。由于电涡流传感器动态校准过程中具有数据量大、传送速度高等特点，因此设计中根据系统结构需要，设计SDR SDRAM存储器控制器，采用分层状态机的设计模式，可以对结构较大的网络数据包或是大量高速传输中的数据进行突发存储操作。经过仔细仿真，然后在LabVIEW软件中验证，结果表明系统工作稳定，数据处理速度快，精度可达纳秒级，满足系统设计要求。

Abstract: The dynamic calibration of eddy current sensors involves a large amount of data reading and writing. This paper addresses the shortcomings of traditional hardware testing software by proposing a design method for a portable video data logic analysis memory. This analysis memory can perform acquisition, analysis, and storage operations on network multimedia data. It acquires, stores, and analyzes dynamic calibration data of eddy current sensors without affecting normal network transmission. Due to the large data volume and high transmission speed during the dynamic calibration of eddy current sensors, an SDRAM memory controller is designed according to the system structure requirements. A hierarchical state machine design is adopted to perform burst storage operations on large network data packets or large amounts of data transmitted at high speed. After careful simulation and verification in LabVIEW software, the results show that the system operates stably, has a fast data processing speed, and achieves nanosecond-level accuracy, meeting the system design requirements.