摘要： 在DSP芯片的可靠性筛选考核试验中，片上Flash擦写耐久和数据保持测试是最重要的试验之一。针对内建自测试和外部自动化机台测试的局限性，提出了一种DSP片上Flash测试系统的设计与实现方法。在分析了Flash故障类型和测试算法的基础上，给出了硬件原理图和软件实现流程，并搭建了实物平台进行效果评估。测试结果表明：该系统可实现多工位DSP片上Flash自动化测试，无需人工参与。同时工作状态可实时显示，测试过程中的数据和结果自动保存在外部存储器中，便于后期进行测试结果统计分析。

中图分类号：TN306 文献标志码：A DOI: 10.16157/j.issn.0258-7998.245650
中文引用格式： 王涛，于鹏，钱昀莹. DSP片上Flash测试系统设计与实现[J]. 电子技术应用，2025，51(2)：41-45.
英文引用格式： Wang Tao，Yu Peng，Qian Yunying. Design and implementation of DSP on-chip Flash testing system[J]. Application of Electronic Technique，2025，51(2)：41-45.

Design and implementation of DSP on-chip Flash testing system

Abstract： In the reliability screening and assessment test of DSP chip, the on-chip Flash erasure durability and data retention test is one of the most important tests. In view of the limitations of built-in self-test and external automated machine testing, this paper proposes the design and implementation of a test system for on-chip Flash of DSP chip. Based on the analysis of Flash fault types and test algorithms, the hardware schematic diagram and software implementation process are given, and a physical platform is built for effect evaluation. The test results show that the system can realize the on-chip Flash automatic test of multi position DSP chip without manual participation. At the same time, the working status can be displayed in real time, and the data and results in the test process can be automatically saved in the external memory, which is convenient for the statistical analysis of the test results in the later stage.

Key words : on-chip Flash；erasure durability；data retention；test system