功能覆盖率(Function Coverage)是衡量验证完备性的重要标准之一。 其用于度量验证中已执行的测试点(cover point)占设计规范的比例,从而避免功能验证的遗漏。或者说,Functional coverage是验证工程师基于对DUT的认识来对验证feature进行分解后,将需要覆盖的点进行分析后写出,因此对于DUT Spec的信息提取非常重要。 Functional_...
总的来说, covergroup侧重功能验证的全面性,vcs侧重代码实现的完整性,两者结合可以更好地评估验证的质量。 What is functional coverage ? functional coverage是测试对设计的哪些功能/特性的衡量。这在约束随机验证(CRV)中非常有用,可以了解回归中的一组测试涵盖了哪些特征。 What are its limitations ? 这仅与为它...
在上面的例子中,定义了两个覆盖点c1和c2,基于c1,c2定义了交叉覆盖c1Xc2。 bit [3:0] a,b; covergroup cov @(posedge clk); aXb: cross a,b; endgroup 1. 2. 3. 4. 在上面的例子中,每个覆盖点都有16个bins,分别是auto[0],auto[1],…,auto[15]。变量a和b的交叉被aXb所标记。交叉起来,则有25...
and you somehow overlooked/missed or were not aware of 3 features, you'll write functional coverage code for only 7 of them. And if all the 7 have been hit in the tests, you might come to the conclusion that all the features are covered. So, you need to ...
Fortunately, support is now available in VCS and other simulators for many of the interesting coverage features introduced in the 2012 revision of SystemVerilog. We give examples, guidelines and recommendations showing how these features can make your code more concise, expressive and versatile. The ...
SystemVerilog functional coverage can help verification engineers that used to model the analog signals in digital environment in the following: Ensuring any “real” signal is covered under a certain amplitude This amplitude range could have tolerance due to any mismatch within the circuit. ...
SystemVerilog Functional Coverage (SFC) 来自 Semantic Scholar 喜欢 0 阅读量: 74 作者: AB Mehta 摘要: SystemVerilog functional coverage (SFC) is another important component that falls within SystemVerilog. In this chapter, we will discuss the difference between code and functional coverage and ...
SystemVerilog Coverage Options用法總結及案例 ---最全的coverage group option用法總結及案例 目錄 一、at_least 二、auto_bin_max 三、cross_auto_bin_max 四、goal (100)点赞(0) 踩踩(0) 反馈 访问所需:1 积分 同意申明访问第三方链接 访问申明(访问视为同意此申明) 1.全站链接来自网络蜘蛛爬取或网络...
SystemVerilog Coverage, There are two types of coverage metrics. Code Coverage, Functional Coverage measures tested and untested portions of the design
SystemVerilog Randomization and Functional Coverage