CAJ | 학술논문

SoC （System-on-a-Chip ）芯片设计中，由于芯片测试引脚数目的限制以及基于芯片性能的考虑，通常有一些端口不能进行测试复用的IP（Intellectual Property ）核将不可避免地被集成在SoC芯片当中。对于端口非测试复用IP核，由于其端口不能被直接连接到ATE（Automatic Test Equipment ）设备的测试通道上，由此，对端口非测试复用IP核的测试将是对SoC芯片进行测试的一个重要挑战。在本文当中，我们分别提出了一种基于V93000测试仪对端口非测试复用ADC （Analog-to-Digital Converter ）以及DAC （Digital-to-Analog Converter ）IP核的性能参数测试方法。对于端口非测试复用ADC和DAC IP核，首先分别为他们开发测试程序并利用V93000通过SoC芯片的EMIF （External Memory Interface ）总线对其进行配置。在对ADC和DAC IP核进行配置以后，就可以通过V93000捕获ADC IP核采样得到的数字代码以及通过V93000采样DAC IP核转换得到的模拟电压值，并由此计算ADC以及DAC IP核的性能参数。实验结果表明，本文分别提出的针对端口非测试复用ADC以及DAC IP核测试方案非常有效。
SoC （System-on-a-Chip ）심편설계중，유우심편측시인각수목적한제이급기우심편성능적고필，통상유일사단구불능진행측시복용적IP（Intellectual Property ）핵장불가피면지피집성재SoC심편당중。대우단구비측시복용IP핵，유우기단구불능피직접련접도ATE（Automatic Test Equipment ）설비적측시통도상，유차，대단구비측시복용IP핵적측시장시대SoC심편진행측시적일개중요도전。재본문당중，아문분별제출료일충기우V93000측시의대단구비측시복용ADC （Analog-to-Digital Converter ）이급DAC （Digital-to-Analog Converter ）IP핵적성능삼수측시방법。대우단구비측시복용ADC화DAC IP핵，수선분별위타문개발측시정서병이용V93000통과SoC심편적EMIF （External Memory Interface ）총선대기진행배치。재대ADC화DAC IP핵진행배치이후，취가이통과V93000포획ADC IP핵채양득도적수자대마이급통과V93000채양DAC IP핵전환득도적모의전압치，병유차계산ADC이급DAC IP핵적성능삼수。실험결과표명，본문분별제출적침대단구비측시복용ADC이급DAC IP핵측시방안비상유효。
IP cores without I/O multiplexing are typically unavoidable to be embedded into SoC due to the necessary consid-erations such as pin constraint and performance optimization during the design stage .Hence ,one of the serious challenges for SoC testing is how to effectively test IP cores without I/O multiplexing because the ports of IP cores without I/O multiplexing cannot be directly connected to the ATE channels .In this paper ,we propose test methods for ADC and DAC IP cores without I/O multiplex-ing using V93000 ATE respectively .In order to test the ADC and DAC IP cores without I/O multiplexing ,test programs are firstly developed and loaded into V93000 to configure the two cores via EMIF bus .Then the digital codes and the analog voltage values re-spectively converted by ADC and DAC IP cores of SoC are captured by V93000 for performance parameter calculation .Experimen-tal results show that the proposed methods are effective .