2019年3月25日 · 通过优化时序约束、减少资源占用、时序优化以及增加时钟约束等方法，可以帮助解决fpga工程综合后出现wns或tns小于零的问题。同时，在设计过程中要合理设置约束并进行综合前的仿真和验证，以确保设计能够满足所需的时序要求。通过增加时钟约束，可以使综合工具对设计进行更严格的时序优化 ...

2019年1月8日 · 通常情况下，如果出现程序设计不合理，时序优化不到位等问题，vivado在布局布线之后，会出现WNS，TNS小于零的情况，如下图所示： 当WNS和TNS较小时，对于一些低速的FPGA工程，可以忽略，不影响系统的工作性能，而当WNS或者TNS负数较大时，那么必须对其进行时序约束，否则会导致系统工作稳定性变 ...

文章浏览阅读1.7w次，点赞5次，收藏49次。数字后端对于时序的仿真，通常会用PT出个报告。里面会列出来：WNS（worst negative slack）和TNS（ total negative slack）。其单位是ns. 是衡量timing好坏程度的指标，通常是负数。负得越多，性能越差。通常后端设计的时候，会设置多个Track来对比，选择一个合适的。

OUTFILE.tns; If the input is -, it reads the file from the standard input. Make sure to encode your Lua or Problem file in UTF-8 if it contains special characters. You can also pack arbitrary files like images into the TNS. For Python, the first script will be the one that shows when the TNS document is opened.

2013年4月5日 · SERVICE_NAME is a alias to a database instance (or many instances). The main purpose of this is if you are running a cluster. Using this we can connect specific database within a cluster. And other way, using SID (System IDentifier) we can connect to a database instance, which is a unique name for an Oracle database instance.. In short, SID = the unique name of your DB, SERVICE_NAME = the ...

2017年3月4日 · TNS简要介绍与应用 Oracle中TNS的完整定义：transparence Network Substrate透明网络底层，监听服务是它重要的一部分，不是全部，不要把TNS当作只是监听器。 TNS是Oracle Net的一部分，专门用来管理和配置Oracle数据库和客户端连接的一个工具，在大多数

2017年9月27日 · Is there any easy way to list out all the available tnsnames in my system via command line?. Whenever I need to find out a tnsname, I just simply search for the tnsnames.ora file with tnsping command and open it in a text editor to scan through. Then subsequently run tnsping [tnsname] to check the connection health. I was thinking if there's any easy command like tnslist or tns -l to list out ...

2008年8月30日 · TNS_ADMIN is an environment variable that points to the directory where the SQL*Net configuration files (like sqlnet.ora and tnsnames.ora) are located. Share. Improve this answer. Follow edited Aug 28, 2008 at 20:04. answered Aug 14, 2008 at …

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TNS Porting Helper provides an automated and guided tool to perform various number of porting activities. This includes complex and general porting guidance while contains a set of instruction to a successful porting event. Whether you're having a calling plan or inter-tenant porting, this spreadsheet will help your journey to porting to ...