第一部分是基本的timing path信息,包括path类型,analysis view,Slack等等信息 第二部分其实就是一个图形化计算slack的显示, 上面一条直线代表Data Arrival Time, 下面一条代表Data Require Time 第三部分是具体每个section内容, Data Path, Launch Clock Path和Capture Clock Path就是三种path上的具体组成,分别对应着t...
TIMING-11: Inappropriate Max Delay with Datapath Only Option Description Resolution TIMING-12: Clock Reconvergence Pessimism Removal Disabled Description Resolution TIMING-13: Timing Paths Ignored Due to Path Segmentation Description Resolution TIMING-14: LUT on the Clock Tree Description ...
DisableCommon Clock Delay Elements:Timing Path Analyzer中的data delay不显示launch and captureclock的common部分 Highlight Clock Path withData Path:把clockpath也highlight出来,默认只高亮data path 红色直线代表Launchclockpath,绿色直线代表特定的那段capture clock path Exclude CPPR from Skew:计算skew时不考虑CP...
通常我们会在佈局后,合成时脉树(Clock Tree)来达到时脉规格。要完全百分之百达到时脉规格是件很不容易的事,所以通常绕线时的时脉资讯会和时脉规格定义的有些许差异,这会影响到静态时序分析的结果。 以上面的例子来说,Critical Path起点的Flip-Flop其Clock Network Delay(Latency)变為0.9998ns而不再是时脉规格中...
今天我们来介绍一下时序分析的小工具——Global Timing Debugger(简称GTD)。 它是Innovus/ Encounter中分析Data Path的工具, 和Clock Tree Debugger有众多相似的地方。 顾名思义, Global Timing Debugger就是用来debug timing。对于一些新人来说, 可能看懂...
* Clock Group : MY_CLOCK * Delay Type : Max * Slack : -1.0682 (VIOLATED) 各位可以看到,此时的Critical Path和合成时的不一样。这是因為绕线预估不同,造成连线负载及连线延迟时间的估计值不一样,再加上佈局与绕线软体会对时序做最佳化,才会有如此结果。我们先来看看布局后Critical Path的时序资讯。
今天我们来介绍一下时序分析的小工具——Global Timing Debugger(简称GTD)。 它是Innovus/ Encounter中分析Data Path的工具, 和Clock Tree Debugger有众多相似的地方。 顾名思义, Global Timing Debugger就是用来debug timing。对于一些新人来说, 可能看懂和分析timing report是一件很困难的事, 而GTD它最大的好处就...
In the above example, the Actual Max Skew value is the difference between the arrival time for CLK calculated at the Fast process corner in Max, and the arrival time for CLKDIV at the Fast process corner in Min.You can check it in the timing report for a particular path type....
Back to top The Bottom Line Most of NI's DAQ devices contain functionality that enables you to share timing and triggering. To take advantage of this functionality, NI-DAQmx, with its characteristic ease of use, simplified analysis, and increased performance, gives you the tools to ensure yo...
The Cisco implementation of NTP doesn’t support stratum 1 service; in other words, it’s not possible to connect to a radio or atomic clock (for some specific platforms, however, you can connect a GPS time-source device). We recommend that time service for ...