基于ADC间歇性转换错误问题的测试程序优化

发布时间：2018-07-05 09:06

本文选题：ADC + 转换错误　；参考：《天津大学》2012年硕士论文

【摘要】：模数转换模块(ADC)，是将模拟信号转换成数字信号的电路，是嵌入式系统中的重要单元。本文解决了飞思卡尔HC08系列的某一产品的实验样品在模数转换模块中存在的间歇性转换错误问题，提高了生产测试程序的覆盖率。本课题的研究对象是飞思卡尔HC08系列模数转换模块。实验内容包括模数转换模块工作原理的分析，间歇性转换错误的研究，以及测试方法的改进。文章中介绍了HC08系列模数转换模块的功能和工作原理，以及飞思卡尔公司对于模数转换模块的测试方法。分析了模数转换模块间歇性转换错误的原因，开展了从芯片的程序应用层到物理层的实验研究，，进行了新测试程序的调试设计。最终达到了提高测试覆盖率的效果。筛测出了具有此类转换错误的所有次品，提高了该产品的质量。为读者提供了一种针对ADC模块的新的测试方法。
[Abstract]:Analog-to-digital conversion module (ADC) is a circuit that converts analog signal into digital signal, and it is an important unit in embedded system. In this paper, the problem of intermittent conversion errors in the analog-to-digital conversion module of a certain product of Freescale HC08 series has been solved, and the coverage of the production test program has been improved. The research object of this subject is Freescale HC08 series A-D conversion module. The experimental contents include the analysis of the working principle of A / D conversion module, the research of intermittent conversion error, and the improvement of test method. This paper introduces the function and working principle of HC08 series A / D conversion module, and the testing method of Freescale's analog-to-digital conversion module. This paper analyzes the causes of the intermittent conversion errors of the analog-to-digital conversion module, carries out the experimental research from the program application layer to the physical layer of the chip, and carries out the debugging design of the new test program. Finally, the effect of increasing test coverage is achieved. All defective products with such conversion errors were detected and the quality of the product was improved. A new testing method for ADC module is provided for readers.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TN792

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