63.Assignment to name ignored, since the identifier is never used
在文件中单独定义一些信号变量,如start_flag,即使进行(*KEEP=“TRUE”*)的声明,但在cdc文件上依然找不到start_flag变量,这是为什么呢?因为ISE综合器非常聪明,对一些没被使用过的变量或标识符,这些被赋值的变量会被优化掉,即不存在这个变量了。需要我们自己将这个变量start_flag影响其他变量,这样就关联起来了。这样综合器就不会丢下它不管了,在cdc也就可以看到这个变量了。
63.Assignment to name ignored, since the identifier is never used的更多相关文章
- 04 Effective Go 高效的go语言 重点内容
Effective Go 高效的go语言 Introduction 介绍 Examples 例子 Formatting 格式 Commentary 评论 Names 名字 Package names ...
- 密码学笔记-一段base64wp
CTF--练习平台 例题: 一段Base64 flag格式:flag{xxxxxxxxxxxxx} 附件: base64.txt 1.base64解码:http://base64.xpcha.com/ ...
- user initialization list vs constructor assignment
[本文连接] http://www.cnblogs.com/hellogiser/p/user_initialization_list.html [分析] 初始化列表和构造函数内的赋值语句有何区别? ...
- Pointcut is not well-formed: expecting 'identifier' at character position 0
异常如下: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDa ...
- A Universally Unique IDentifier (UUID) URN Namespace
w Network Working Group P. Leach Request for Comments: 4122 Microsoft Category: Standards Track M. M ...
- moviepy音视频剪辑:headblur函数遇到的ValueError assignment destination is read-only问题及解决办法
☞ ░ 前往老猿Python博文目录 ░ 一.运行环境 运行环境如下: python版本:3.7 opencv-python版本:4.2.0.34 numpy版本:1.19.0 二.错误案例代码及报错 ...
- ASP.NET MVC5+EF6+EasyUI 后台管理系统(63)-Excel导入和导出-自定义表模导入
系列目录 前言 上一节使用了LinqToExcel和CloseXML对Excel表进行导入和导出的简单操作,大家可以跳转到上一节查看: ASP.NET MVC5+EF6+EasyUI 后台管理系统(6 ...
- a different object with the same identifier value was already associated with the session:
hibernate操作: 实例化两个model类,更新时会提示 a different object with the same identifier value was already assoc ...
- An App ID with Identifier 'com.XXX.XXX’ is not available. Please enter a different string.报错
昨天刚刚升的Xcode7.3和iOS9.3,然后没怎么使用这两样就下班了,但是今天早上来了之后,就发现突然之间不能真机测试和运行代码了,一看才发现xcode报错: An App ID with Ide ...
随机推荐
- 【drp 9】Servlet生命周期
一.基本概念 Servlet(Server Applet):全称Java Servlet,是用Java编写的服务器端程序.其主要功能在于交互式地浏览和修改数据,生成动态Web内容.狭义的Servlet ...
- WP8_检测列表是否滑动
One of the UI features of lists on Windows Phone 7 is that the "scroll bars" don't really ...
- WP8_UTF8 to GB2312转码 (url网址中带中文字符的处理)
直接使用例如:http://www.abc.php?name=中文符 ,客户端调用,在服务端修改后,会出现乱码, 而windows phone 又不能直接支持gb2312, 经过大量分析和验证,发现 ...
- Backup App's data without rooting the phone
First I'd like to let you know that my phone is Android 6.0 Marshmallow. So it works on the latest A ...
- EnCase v7 could not recognize Chinese character folder names / file names on Linux Platform
Last week my friend brought me an evidence file duplicated from a Linux server, which distribution i ...
- 查看Linux系统版本信息
一.查看Linux内核版本命令(两种方法): 1.cat /proc/version [root@S-CentOS home]# cat /proc/versionLinux version 2.6. ...
- iOS Architecture Patterns
By Bohdan Orlov on 21 Mar 2016 - 0 Comments iOS FYI: Slides from my presentation at NSLondon are ava ...
- 显示或隐藏一个Grid
The Rowset class contains two methods that can be used to show and hide all rows: ShowAllRows() Hide ...
- 微信开发笔记(一)通过.net如何实现接入微信
微信公众平台,给个人.企业和组织提供业务服务与用户管理能力的全新服务平台.现在基本上每个地方都可以看到微信存在,动不动就是让你扫一下加下微信. 经常遇到这样情况,“到一家餐馆吃饭,拿了个号,前台服务引 ...
- TFS build dotCover StyleCop
FS2010 – Customizing the Build Details View – Summary View http://blogs.msdn.com/b/jpricket/archive/ ...