基于RVM的AVS视频解码芯片的验证

Verification for AVS Video Decoder Based on RVM

随着集成电路设计规模和复杂度的不断增大,验证工作越来越重要。如何快速地搭建一个强大、高效的验证平台是工程师们关注的重点。基于业内常用的高级验证方法学RVM(Reference Verification Methodology),利用Vera验证语言搭建了一个层次化验证平台,对AVS视频编解码芯片进行验证。设计中,AVS(Audio Video coding Standard)视频解码芯片的验证一共开发测试用例2 400多条,覆盖率也已达到项目要求,其中行覆盖率为99.2%,条件覆盖率为95%,状态机覆盖率是98.1%,跳转覆盖达95.2%,且平台可重用性较好。验证结果表明,基于RVM的Vera平台可以准确高效地对芯片进行验证。

Verification for digital design is more and more important as the increasing of design scale and complexity of integrated circuit. The engineers are focusing on how to build a powerful and efficient verification platform. Based on RVM, one of the common senior verification methodologies, a hierarchical verification platform is built with Vera to verify the AVS video decoder. 2400 test cases are developed for AVS video decoder, the code coverage fulfills the requirements of project, the line coverage is 99.2%, the condition coverage is 95% , the fsm coverage is 98.1% and the toggle coverage is 95.2%. The reusability of the platform is fine. The results show that using Vcra can verify the IC （Integrated Circuit） efficiently and accurately.