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基于SPI接口ADC的数字自动化验证设计
集成电路应用
佟兴,刘涛,孟军,白敏
南京微盟电子有限公司
摘要: 为了减少芯片管脚和成本,该研究提出了一种SPI接口ADC芯片。因其数字控制功能比一般ADC复杂,对芯片验证工作提出了更高的要求。该研究阐述了一种基于SPI接口ADC数字功能的自动化验证方案。该方案通过合理可重用的模块化设计、随机生成异步时序测试例、收集覆盖率、自动比对验证结果,减少了人工投入和成本,并提高了验证质量和效率。该方案经项目实践证明了可行性,同时对方案做少量修改就可以满足后续系列化芯片的验证需求。
中图分类号:TN402,TN407文献标识码:ADOI:10.19339/j.issn.1674-2583.2026.01.005
中文引用格式:佟兴,刘涛,孟军,等. 基于SPI接口ADC的数字自动化验证设计[J].集成电路应用,2026,43(01):34-38.
英文引用格式:Tong Xing,Liu Tao,Meng Jun,et al. A digital automated verification for ADC with SPI interface[J].Application of IC,2026,43(01):34-38.
A digital automated verification for ADC with SPI interfaceTong
Tong Xing,Liu Tao,Meng Jun,Bai Min
Nanjing Micro One Electronics Inc.
Abstract: To reduce chip pins and costs, this paper investigates an SPI interface ADC chip. Due to its more complex digital control functions compared with those of conventional ADCs, it imposes higher requirements on chip verification. This research presents an automated verification solution for SPI interface ADC digital functions. Through modular design with reasonable reusability, the solution randomly generates asynchronous timing test cases, collects coverage, and automatically compares verification results, thereby reducing manual effort and costs while improving verification quality and efficiency. Project practice proves its feasibility, and with minor modifications to the solution, it can meet the verification needs of subsequent series of chips.
Key words : ADC; automated verification; SPI; asynchronous timing

引言

根据业界经验,对于复杂数字芯片,验证工作量最大占总研发工作量的40%[1]。对于带SPI接口的ADC芯片,其数字控制功能比一般模数转换器(Analog-to-Digital Converter, ADC)芯片复杂。需要研究一种自动化的验证架构,来提高验证质量和效率。


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作者信息:

佟兴,刘涛,孟军,白敏

(南京微盟电子有限公司,江苏南京210023)

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