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The method of FPGA pin assignment preservation in QUARTUS2

source Xxx.tclfileStep 1:In the QII software, use the "Assignments, remove Assignments" tab to remove pin assignments to ensure that the assigned pins do not have errors due to overwriting.Figure 4 Remove AssignmentsNote: You can skip step 1 in a new project without performing any pin assignment operations.Step 2:Use Notepad or similar software to create a new Tcl file, in the following format Pin assignment content (different development version, th

Opencascade Ring Type Spring Modeling

Opencascade Ring Type Spring Modeling[Email protected]Abstract. The directly create an edge was to give a 3D curve as the support (geometric domain) of the edge. The curve maybe defined as a 2D curve in the parametric space of a surface:pcurve. When you understand the Pcurve, you can modeling some interesting shapes, such as bottle neck thread, Helix spring, Ring T Ype Spring. ETC. The paper is focus on the Ring Type Spring Modeling in Opencascade Draw Test Harness by

Linux (Centos) installation Redis and considerations

s, value will be treated as a binary byte stream used to store data in any format, such as Json,xml, picture and byte streams of serialized objects, so we can also think of it as a blob type field in an RDB so that when we do a data query, we can only base our query on key. E.redis official website: http://www.redis.io/2. Preparatory workA. Through the above instructions we can both start to install Redis under the Linux system, in the process of installing Redis I encountered some problems, bu

Summary of the problem solving process of "No module named _tkinter" under Python __python

, encountered similar problems, such as import Error, the approximate rate is a package is not installed, so the first reaction is a package missing, so first the package and class library query: PIP3 Search Tkinter The results found that a large number of packages were matched to, and that some of the associated packages had tkinter, and that information was largely not helpful. .................. TKINTER.HELP (2.0)-Small Preview of Tkinter Widgets tkinter3000 (1.1-20051211)-Widget constructi

Computer vision in the field of some cattle people blog, super-powerful research institutions, such as website links

://research.microsoft.com/en-us/groups/vc/ (19) Shine ML and CV Study Group; http:// Research.microsoft.com/en-us/groups/mlp/default.aspx (20) Research and study Forum; http://bbs.matwav.com/(21) Liuqingshan, assistant professor, Rutgers University, USA; http://www.research.rutgers.edu/~qsliu/(22) The latest information network of computer vision; http://www.cvchina.info/(23) test video download for motion detection, shadowing and tracking; http://app

MySQL Common statements

retrieved table Where the search condition (optional)The "*" used previously indicates that all columns are selected.The following continues with the table mytable we created in the previous article:2. Query all data:Mysql> select * FROM MyTable;+----------+------+------------+----------+| name | sex | Birth | birthaddr |+----------+------+------------+--------+| Abccs|f| 1977-07-07 | China || Mary |f| 1978-12-12 | USA || Tom |m| 1970-09-02 |

Mysql database operation statement and mysql statement

whether the data has been input to the database table:Mysql> select * from mytable;In the previous article, we learned how to create a database and a database table, and how to add records to a database table.How can we retrieve data from database tables?1. Retrieve Information from a database tableIn fact, we have used the Select statement to retrieve information from database tables.The select statement format is generally:Select search keyword FROM the retrieved table Where search condition

Computer vision in the field of some cattle people blog, super-powerful research institutions, such as the site link [turn]

://research.microsoft.com/en-us/groups/vc/(19) Shine ML and CV Study Group; http://research.microsoft.com/en-us/groups/mlp/default.aspx(20) Research and study Forum; http://bbs.matwav.com/(21) Liuqingshan, assistant professor, Rutgers University, USA; http://www.research.rutgers.edu/~qsliu/(22) The latest information network of computer vision; http://www.cvchina.info/(23) test video download for motion detection, shadowing and tracking; http://apps.h

Sqlloader How to use _mssql

. How to load delimitation data 1 data that is delimited by a particular character, may be enclosed in quotation marks, which is the most common data format for the current flat file.For bound data, the most commonly used format is comma-delimited value format. With this file format, each field in the data is separated by a comma from the next field. Text strings can be enclosed in quotes so that the string itself contains commas. If the string must also contain quotes, the general convention i

MySQL How to use a simple tutorial

|+---------------------+10, the structure of the display table:Mysql> DESCRIBE mytable;+-------------+-------------+------+-----+---------+-------+| Field | Type | Null | Key | Default | Extra |+-------------+-------------+------+-----+---------+-------+| name | varchar (20) | YES | | NULL | || sex | char (1) | YES | | NULL | || Birth | Date | YES | | NULL | || deathaddr | varchar (20) | YES | | NULL | |+-------------+-------------+------+-----+---------+-------+11. Query all data:Mysql> select

MySQL Simple to use

|+---------------------+10, the structure of the display table:Mysql> DESCRIBE mytable;+-------------+-------------+------+-----+---------+-------+| Field | Type | Null | Key | Default | Extra |+-------------+-------------+------+-----+---------+-------+| name | varchar (20) | YES | | NULL | || sex | char (1) | YES | | NULL | || Birth | Date | YES | | NULL | || deathaddr | varchar (20) | YES | | NULL | |+-------------+-------------+------+-----+---------+-------+11. Query All data:Mysql

Opencascade Pcurve of topological face

result of splitting a smiley face with a two-dimensional triangulation library triangle.In the draw Test Harness, Opencascade provides a command pcurve opposite the Pcurve visualization. Use the Pcurve command to display all the pcurve in a polygon in different colors depending on the direction orientation. This command is useful for checking the correctness of the orientation of the edges in the polygon. The following uses the TCL command to display

Monkey said dawang problem Algorithm

Question: a bunch of monkeys have numbers. The number is 1 , 2 , 3 .. m , This group of monkeys ( M According 1-m From the first 1 Start number, count to the second N The monkey is about to leave this circle, so that it goes down in turn until there is only the last monkey in the circle, then the monkey is king . Solution: a circleM is regarded as a circular linked list of monkeys, moving from the first node (monkey) to the nth node (monkey) and deleting it, then move from t

Quartus II PIN Configuration __quartus

Quartus II software commonly used in the allocation of pins in two ways, one is to select the menu "Assignments->pin Planner" into the PIN allocation view manual distribution; The second method is to automatically allocate the TCL script file. First of all, introduce Quartus II QSF documents and TCL documents. The QSF (Quartus settings file) file is an engineering Setup document that contains all the const

Integration of MySQL database for Linux applications

This article describes MySQL, an effective tool for developing electronic trade and other complex and dynamic websites using third-party databases. MySQL is a fast, multi-threaded, and fully functional SQL Server. In addition to describing the basic architecture of the MySQL system, this article also provides simple examples written in Tcl and C ++ to help you develop Web applications that support databases. One This article describes MySQL, an effect

Create an agent/myagent Process

A simple example illustrates how TCL maps to C ++. The purpose of a program is to create a new network object class "myagent", which is a subclass of "agent. Below I paste the ex-linkage.cc code here: // This is a simple agent just for show# Include # Include # Include "agent. H" Class myagent: public agent {Public:Myagent ();Protected:Int command (INT argc, const char * const * argv );PRIVATE:Int my_val1;Double my_val2;Void myprivfunc (void );};// ==

Article 05-Visualization Techniques (2)

surrounded by pipelinesCreating a streamline requires specifying a starting point, direction (along or against the flow). and other parameters that control the progression. The following code shows how to create a streamline.The streamline is represented by a pipe, and the pipe radius is proportional to the reciprocal of the velocity modulus value. When the stream is less than an hour, the pipe is thicker. Vice versa. TCL code excerpt from VTK/EXMAPL

Python Basics-gui Programming-tk-stringvar

1, how to elicit StringvarIt was previously thought that Stringvar was a Java-like object variable of type string, and today, when you want to set the value of the Stringvar variable, the search finds that stringvar is not a python built-in object, but a Tkinter object. This aroused my interest, I feel the need for targeted learning2, the role of StringvarQuerying a lot of data, when we use the interface programming, sometimes we need to track the variable value changes, to ensure that the value

Why are the designers of C ++/PHP/Delphi/C # Danish?

C ++: BjarneStroustrupPHP: RasmusLerdorfDelphiC #: andreshejlsberg C ++: Bjarne Stroustrup PHP: Rasmus Lerdorf Delphi/C #: Anders Hejlsberg reply: because there is a lot of bearded people, whether the language can be successful depends on the designer's beard. I don't know whether young people have heard of this stalk. By the way, although the author of ruby is a Japanese, he left a big beard and took a photo after hearing that he had no beard and ruby would inevitably fail. I have more beard

Tsinghua Computer Major in the world first? This latest ranking is like this

(Click the public number above for a quick follow-up) Turn from: The forefront of technology (TOPITNEWS) If you have a good article to submit, please click here to learn more Yahoo News October 24 issued a report, said the United States news and World Report released the 2018 global university rankings of the latest. Take us to focus on the rankings of the computer (computer science) majors. To add, U.S. News World Reports is the third-largest news magazine in the United States, second only

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