Questions 2014/5/29 1.最后检查布板,除了用netlist查,还有没有更快的方法? 2014/6/8 1.      R的location中心究竟是哪个? watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvSklOWTky/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" style="color:…

1.1 目的 原理图设计是产品设计的理论基础,设计一份规范的原理图对设计PCB.跟机.做客户资料具有指导性意义,是做好一款产品的基础.原理图设计基本要求: 规范.清晰.准确.易读. 因此制定此<规范>的目的和出发点是为了培养硬件开发人员严谨.务实的工作作风和严肃.认真的工作态度,增强硬件开发人员的责任感和使命感,提高工作效率和开发成功率,保证产品质量. 1.2 基本原则 1.2.1 确定需求:详细理解设计需求,从需求中整理出电路功能模块和性能指标要求等 1.2.2 确定核心CPU:根据功能和性…

How To Ask Questions The Smart Way Eric Steven Raymond Thyrsus Enterprises <esr@thyrsus.com> Rick Moen <respond-auto@linuxmafia.com> Copyright © 2001,2006 Eric S. Raymond, Rick Moen Revision History Revision 3.9 23 Apr 2013 esr URL fixes. Revi…

十五 Twenty Questions Time Limit:3000MS     Memory Limit:0KB     64bit IO Format:%lld & %llu Submit Status Practice UVA 1252 Appoint description:  System Crawler  (2015-08-25) Description   Consider a closed world and a set of features that are defined…

PCB Trace Width Calculator 转载自:CircuitCalculator.com 关键词: PCB,Layout,电流,导线宽度. This Javascript web calculator calculates the trace width for printed circuit boards based on a curve fit to IPC-2221 (formerly IPC-D-275). Also see thevia calculator. New…

一条龙作完,如何设置EXCHANGE的操作员邮件通知.. ~~~~ http://808techblog.com/2009/07/setup-sql-server-2008-maintena.html For most of the SQL installs that I maintain, nightly SQL dumps to disk and then copy to tape is my preferred backup method. I use a simple maintenan…

Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved   此问题的解决:   1.要确认spring sts已经设置代理 2.要确认windows -> Preferences -> maven 的settings.xml文件中,设置代理. 3.C:\Users\ttt\…

You’ve been in your role for a while now, giving 110% to every assignment your manager hands out. You’ve volunteered for what seems like every project under the sun, and you’ve heard nothing but positive feedback every time.You’ve been patiently wait…

Frequently Asked Questions (FAQ) Origins 起源 What is the purpose of the project? What is the history of the project? What's the origin of the gopher mascot? Why did you create a new language? What are Go's ancestors? What are the guiding principles in…

首先说明一下遇到的问题: PG数据库,对其中的某张表增加一列后,应用报错,信息如下: 应用使用相关框架如下:SpringBoot.MyBatis. ### Cause: org.postgresql.util.PSQLException: ERROR: cached plan must not change result type ; uncategorized SQLException for SQL []; SQL state [0A000]; error code [0]; ERROR:…