set_option sdc2sgdc yes sdc_data –file “test.sdc” 下面是一个SGDC文件的例子 3.2 目标(Goal)设定和运行阶段 在此阶段,你将选择并运行目标。目标是规则的集合。 你可以选择规则,也可以指定规则执行的顺序。 在SpyGlass CDC分析期间,你可以在不同的阶段运行不同的SpyGlass CDC目标。在每个阶段中,修复所报告...
Synopsys VC SpyGlass 数据手册说明书 DATASHEET synopsys.com Overview Among the many verification challenges confronting system-on-chip (SoC) designers today, clock domain crossings (CDC) ranks near the top in difficulty. Today’s SoCs have dozens, sometimes even hundreds, of asynchronous clock domains...
如果了解block的约束,可以直接在SGDC文件中定义constraints。 Translating SDC Commands to SGDC Commands 使用sdc2sgdc命令,将block-level的SDC命令转换成对应的SGDC约束。 Predicting Constraints 跑cdc_setup_checkgoal来生成约束。此goal的Clock_info15rule来生成约束。在SpyGlass CDC验证中使用这些约束前需要检视这些约束。
Creating SpyGlass CDC Setup.Goal:cdc_setup;指定constraints(SGDC file),parameters 及其他指定用于该project的定义来精准运行SpyGlass CDC检查。可以使用‘sdc2sgdc’ 命令来将 block-level SDC 转化成相应的SGDC 约束文件。运行‘cdc_setup_check’ goal能够生成constraints, 但生成的constraint一定要designer仔细review下...
Simple setup by automatically extracting the clock, reset and clock domains information; It can also extract the same information from existing SDC constraints providing a jump start to the users Comprehensive structural and functional analysis using formal based and simulation based solutions to deliver...
Efficient Debug Capabilities Provides high-performance & efficient debug capabilities using Tcl Low-Noise Methodology Skip the reset-less sequential elements Native Integration and Support Verdi® integration for design debug & SDC support for RDC analysisFeatures...
指定需要check的Rule( set_parameter) : 如设置参数Crossing 时组合逻辑允不允许 指定Goal(set_goal_option)SGDC 没有SGDC Constraint ⽂件是不能进⾏CDC分析的，不合理的设置constaint会造成结果中许多⽆⽤的的violation，让⼈耗费更多debug时间。 可以⽤‘sdc2sgdc’⼯具将sdc constraint转换成spyglass的...
CDCRDC SDCTXV LowPower Lint LanguageSupport VerilogsupportSpyGlasssupportsallthestandardoptions:-y,-v,+libext,+incdirPrecompiledVerilogmodulessupportedVerilog2KsupportisdefaultbehaviourVHDLsupportTheIEEE,STD,andSynopsyslibrariesarelinkedbydefaultYoucancreateanduseyourownlibrariesinSpyGlassIMPORTANT:VHDLlibrariesarenot...
SpyGlass,这是一个很强大的RTL验证级工具。它不仅仅能检查sdc的错误,还能做以下各种检查:Low Power, DFT,CDC(Cross Domain Check)。其中用得最多的就是CDC,到底什么是Cross Domain Check呢? 在一个设计中,通常都会有好几个clock domain。这样就可能存在从一个clock domain到另一个clock domain的data或者control信...
VC SpyGlass Platform Simple setup Signoff QoR Performance Low noise Intuitive debug Hierarchical flows Figure 3: Scalable CDC platform addressing biggest challenges 2 Ease of Use and Functionality • Utilizing existing SpyGlass SDC Constraints from current projects provides simple setup by automatically ...