基于抽象层次化的易重用随机激励产生机制

摘要

In order to improve the efficiency when verification environment reused in the SoC design & verification flow,we present a random stimulus generate mechanism based on abstract layer.After layering the stimulus library on abstract level,during the reused process,keep the higher abstract layer,update the adaption layer,the sequence on low level will be generated automatically.Compared with traditional stimulus generate mechanism based on OVM,using the new method could reduce the adaption load.During the verification running phrase,we can add higher sequence command,improve its flexibility.%为了提高SoC设计的验证环节中,验证环境重用时的效率,提出了一种基于抽象层次化的随机激励产生机制.通过将激励序列库在抽象层次上进行分层,使得在验证环境重用时,保持高抽象层不变,修改转换层,底层序列将会自动产生.该机制与传统的基于OVM的激励产生机制相比,能够在重用时减少代码修改量,并且在仿真运行阶段,能够实时添加高层序列命令,同时提高了灵活性.