The purpose of this document is to present how to use the Timer for the generation of a PWM signal tunable in frequency and duty cycle. As an application example, this document is based on a basic “music” synthesizer through an external buzzer. Example code is also available in the it.
標簽: generation the document purpose
上傳時間: 2013-12-20
上傳用戶:z754970244
This a simple database management system. It doesn t use any other code (i.e. ODBC, ADO, etc.) and has it s own database file format. I wrote it because I found the other DBMSs code too bulky and hard to debug. It s designed for small applications and I doubt it could handle anything on a large scale. A sample program included in the .zip shows how everything works. The database project is a library project, so you ll have to compile and link with the .lib file to get everything working. Pros: - You have the source code so you know exactly what it is doing - Database files are very small - Small and fast code Cons: - Can t handle large amounts of records (more than 65000ish) - Doesn t support SQL (you have to search the database by cycling through the records and testing them against your constraints) - Each database file can only have one table.
標簽: i.e. management database simple
上傳時間: 2016-10-02
上傳用戶:851197153
1、該PERIPHERAL文件夾包含五個有關系統外設的程序:DEC5502_USB、DEC5502_LED和DEC5502_UART程序。 2、DEC5502_USB程序主要實現了與PC機應用程序之間的USB通訊,并根據PC機傳來的指令進行相應的動作。 3、DEC5502_UART程序主要完成了利用外擴UART(A通路和B通路)與PC機進行數據的發送和接收操作。 4、DEC5502_LED程序通過配置系統定時器和系統中斷來控制指示燈D5和D1,并且通過D5和D1是否交替閃爍來達到測試系統定時器和系統中斷的目的。 5、DE5502_SDRAM與EMIF有關的測試程序。對他們的訪問成功與否主要取決于對EMIF接口的配置,測試程序配置時設為最為可靠的方式,用戶可以根據相應的技術文檔來對EMIF進行重新配置,從而提高訪問外擴存儲器的速度。
標簽: 5502 DEC PERIPHERAL USB
上傳時間: 2014-01-05
上傳用戶:曹云鵬
public void playerUpdate(final Player p, final String event, final Object eventData) { // queue a call to updateEvent in the user interface event queue Display display = Display.getDisplay(midlet) display.callSerially(new Runnable() { public void run() { DRMPlayer.this.updateEvent(p, event, eventData) } }) }
標簽: final playerUpdate eventData public
上傳時間: 2013-12-18
上傳用戶:1109003457
These instances, whenmapped to an N-dimensional space, represent a core set that can be used to construct an approximation to theminimumenclosing ball. Solving the SVMlearning problem on these core sets can produce a good approximation solution in very fast speed. For example, the core-vector machine [81] thus produced can learn an SVM for millions of data in seconds.
標簽: N-dimensional whenmapped instances represent
上傳時間: 2016-11-23
上傳用戶:lixinxiang
This book is designed to teach you the best practices in developing Windows DNA applications. We have avoided making this book a primer on every technology associated with Windows DNA. If we had followed this course, this would be an encyclopedia set. Everyone has their favorite authors and books on the various technical subject areas. The market is full of books to teach you the basics, the how, this book tries to be different in that we pull out the important points to teach you about the why. If you need training in a particular technology covered in this book, Sams has a number of 24-hour and 21-day books that cover a wide range of topics.
標簽: applications developing practices designed
上傳時間: 2016-11-27
上傳用戶:yyq123456789
本題要完成的是一組簡單C表達的運算。所有表達式存放在文件 CExpression.txt 中,每個表達式一行。每行的長度不會超過80個字符。文件最后有一個空行表示結束。 每個表達式,只包含簡單的整數變量和限定的一些操作符,表達式中沒有常量??偣灿?6個可能出現在表達式中的變量,分別命名為 a,b,...,z。每個變量最多出現一次。26個變量的初值分別為1,2,...,26。 表達式中的操作符,包括:兩個二元操作符 +, -,表示加,減運算。例如,表達式a+c-d+b(即1+3-4+2)的結果為2。 單獨一個-號不能放在變量前面,表示負數。 表達式中還包含兩個一元運算符:++,--,表示加一和減一運算。它們既可以出現在一個變量的前面、也可以出現在后面。如果出現在變量前面,則表示先對變量進行加一/減一運算,然后變量值參與表達式計算。如果出現在變量后面,則表示變量的原值參與表達式計算,表達式計算完之后,變量值加一/減一。 例如,表達式 -- c + b-- 的結果為 4, 表達式計算完之后, b,c的值分別為1,2 輸出格式要求:輸出直接顯示在屏幕上。對于每個表達式,第一行輸出表達式的內容。第二行輸出表達式的值,后面幾行輸出參與運算的各個變量的結果值。
標簽: CExpression txt 運算 表達式
上傳時間: 2017-01-17
上傳用戶:cjf0304
漢諾塔!?。? Simulate the movement of the Towers of Hanoi puzzle Bonus is possible for using animation eg. if n = 2 A→B A→C B→C if n = 3 A→C A→B C→B A→C B→A B→C A→C
標簽: the animation Simulate movement
上傳時間: 2017-02-11
上傳用戶:waizhang
1.管理信息系統(學生成績) 兩種用戶等級:管理員和用戶,均用用戶名和密碼登陸,通過識別不同類型的用戶名,進入不同的操作界面。 1) 管理員功能: i 用戶管理:增加、刪除用戶; ii 記錄錄入、修改、刪除 iii 查詢:單項查詢、多項查詢、范圍查詢 iv 分類統計:提供有代表性的統計結果 2) 用戶功能: a) 修改密碼 b) 查詢本用戶信息 c) 修改個人信息
上傳時間: 2014-01-10
上傳用戶:huql11633
簡單的無線遙控音樂制作 采用HC2272,HC2262接收, 對應管腳連接: 1、無線遙控部分 D0----P1^0 D1----P1^1 D2----P1^2 D3----P1^3 VT----P3^2 2、顯示部分: 74LS48驅動共陰數碼管 A-----P3^0 B-----P3^1 C-----P3^2 D-----P3^3 3、蜂鳴器(或喇叭) P3^4
上傳時間: 2014-12-01
上傳用戶:txfyddz