计算机与网络
計算機與網絡
계산궤여망락
CHINA COMPUTER & NETWORK
2014年
2期
58-61
,共4页
不定态%门级仿真%初始化%时序冒险
不定態%門級倣真%初始化%時序冒險
불정태%문급방진%초시화%시서모험
uncertain state%gate-level simulation%initialization%timing risk
为了解决在仿真时由于不定态的传播、扩散导致的仿真失败的情况,首先介绍了不定态产生的原因,之后分析了仿真器对不定态的传播,进而提出了在RTL级以及门级阶段消除不定态的方法,最后结合工程实践,介绍了利用VCS仿真工具在门级仿真过程中消除不定态的实现过程。实践结果表明,合理运用该方法,可以在保证电路工作正常的前提下,确保门级仿真的顺利进行,故具有重要的参考价值。
為瞭解決在倣真時由于不定態的傳播、擴散導緻的倣真失敗的情況,首先介紹瞭不定態產生的原因,之後分析瞭倣真器對不定態的傳播,進而提齣瞭在RTL級以及門級階段消除不定態的方法,最後結閤工程實踐,介紹瞭利用VCS倣真工具在門級倣真過程中消除不定態的實現過程。實踐結果錶明,閤理運用該方法,可以在保證電路工作正常的前提下,確保門級倣真的順利進行,故具有重要的參攷價值。
위료해결재방진시유우불정태적전파、확산도치적방진실패적정황,수선개소료불정태산생적원인,지후분석료방진기대불정태적전파,진이제출료재RTL급이급문급계단소제불정태적방법,최후결합공정실천,개소료이용VCS방진공구재문급방진과정중소제불정태적실현과정。실천결과표명,합리운용해방법,가이재보증전로공작정상적전제하,학보문급방진적순리진행,고구유중요적삼고개치。
To resolve the simulation failure caused by the propagation of uncertain state, the reason of uncertain state is introduced firstly. And the method of eliminating uncertain state in the RTL simulation and gate-level simulation is put forward based on analysis of uncertain states propagation. Lastly, combining with the engineering practice, the detailed implementation of this approach by using VCS simulator is introduced. The experimental results show that this method can make the gate-level simulation be implemented successfully when the circuit operating normally and it has significant reference value.