I often need a simple function generator. Just to generate a certain frequency. After all the years I ve worked with electronics, I still haven t got me one. Even though I need it now and then, I just couldn t seem to justify the cost of one. So, standard solution - build one yourself. I designed a simple sinewave generator based on a Analog Devices AD9832 chip. It will generate a sinewave from 0.005 to 12 MHz in 0.005 Hz steps. That s pretty good, and definitely good enough for me ! But while waiting for the AD9832 chip to arrive, I came up with a very simple version of the DDS synth, using just the 2313 and a resistor network.
標(biāo)簽： frequency generator function generate
上傳時(shí)間： 2013-12-17
上傳用戶：thesk123
MICROSOFT FOUNDATION CLASS LIBRARY : 學(xué)生管理系統(tǒng) ======================================================================== AppWizard has created this 學(xué)生管理系統(tǒng) application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your 學(xué)生管理系統(tǒng) application. 學(xué)生管理系統(tǒng).dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally.
標(biāo)簽： FOUNDATION MICROSOFT LIBRARY CLASS
上傳時(shí)間： 2013-12-16
上傳用戶：天涯
Grass 5.00 start for idiot, one of the best documentation for Grass beginner users. And this is the Chinese edition, for the ones prefer mother language. From the beginning for Linux participation to the BIOS update, and finally the details setup for GRASS Linux users. Moreover, with my suggestion is that Ubuntu 8.10 is the best package for GRASS 5.00, but it is totally up to you how to choose a platform for this talent open source application.
標(biāo)簽： Grass documentation for the
上傳時(shí)間： 2016-12-06
上傳用戶：jjj0202
BlackBerry Hacks will enhance your mobile computing with great tips and tricks. You ll learn that the BlackBerry is capable of things you never thought possible, and you ll learn how to make it an even better email and web workhorse: Get the most out of the built-in applications Take control of email with filters, searches, and more Rev up your mobile gaming--whether you re an arcade addict or poker pro Browse the web, chat over IM, and keep up with news and weblogs Work with office documents, spell check your messages, and send faxes Become more secure, lock down your BlackBerry and stash secure information somewhere safe Manage and monitor the BlackBerry Enterprise Server (BES) and Mobile Data System (MDS) Create web sites that look great on a BlackBerry Develop and deploy BlackBerry applications
標(biāo)簽： BlackBerry computing enhance mobile
上傳時(shí)間： 2016-12-07
上傳用戶：GavinNeko
本代碼包為本人的一篇文章<一個(gè)占用內(nèi)存極少的菜單系統(tǒng)的實(shí)現(xiàn)>在在PC上的測試移植代碼。 ------------------------------ Menu_Src目錄為Menu的源代碼 Ks0108.C的void Display_Locate(unsigned char DisplayData, unsigned char X, unsigned char Y)函數(shù)為最底層的顯示函數(shù)。 該函數(shù)調(diào)用LCD模擬函數(shù)來完成顯示。 KeyScan.C的unsigned char KeyScan(void)函數(shù)為鍵盤模擬函數(shù)。 void DelayMs( WORD time ) 延時(shí) ------------------------------ GUI_SIM.exe為編譯后的文件,可以直觀看到這個(gè)GUI的效果. PC鍵盤的4個(gè)按鍵控制菜單周轉(zhuǎn): PC按鍵 菜單中功能 up 向上鍵 確定鍵 進(jìn)入子菜單 down向下鍵 取消鍵 返回父菜單 left向左鍵 向上鍵 菜單項(xiàng)上一項(xiàng) right向右鍵 向下鍵 菜單項(xiàng)下一項(xiàng) 有興趣自己編譯VC工程:\Project\Menu.dsw <一個(gè)占用內(nèi)存極少的菜單系統(tǒng)的實(shí)現(xiàn)>相關(guān)PDF文檔和其他資料在以下鏈接: http://www.ouravr.com/bbs/bbs_content.jsp?bbs_sn=798580&bbs_page_no=3&bbs_id=9999
上傳時(shí)間： 2014-06-24
上傳用戶：stvnash
這是書上的代碼，Pop-Up Menu在非模態(tài)對話框中實(shí)現(xiàn)UPDATE-COMMAND-UI機(jī)制，供大家參考
標(biāo)簽： 代碼
上傳時(shí)間： 2014-01-04
上傳用戶：changeboy
The XC226x derivatives are high-performance members of the Infineon XC2000 Family of full-feature single-chip CMOS microcontrollers. These devices extend the functionality and performance of the C166 Family in terms of instructions (MAC unit), peripherals, and speed. They combine high CPU performance (up to 80 million instructions per second) with extended peripheral functionality and enhanced IO capabilities. Optimized peripherals can be adapted flexibly to meet the application requirements. These derivatives utilize clock generation via PLL and internal or external clock sources. Onchip memory modules include program Flash, program RAM, and data RAM.
標(biāo)簽： high-performance full-feature derivatives Infineon
上傳時(shí)間： 2016-12-12
上傳用戶：wab1981
This paper addresses the subject of SQL Injection in a Microsoft SQL Server/IIS/Active Server Pages environment, but most of the techniques discussed have equivalents in other database environments. It should be viewed as a "follow up", or perhaps an appendix, to the previous paper, "Advanced SQL Injection". The paper covers in more detail some of the points described in its predecessor, providing examples to clarify areas where the previous paper was perhaps unclear. An effective method for privilege escalation is described that makes use of the openrowset function to scan a network. A novel method for extracting information in the absence of helpful error messages is described the use of time delays as a transmission channel. Finally, a number of miscellaneous observations and useful hints are provided, collated from responses to the original paper, and various conversations around the subject of SQL injection in a SQL Server environment.
標(biāo)簽： Server SQL Injection Microsoft
上傳時(shí)間： 2014-07-28
上傳用戶：xhz1993
H.264/AVC, the result of the collaboration between the ISO/IEC Moving Picture Experts Group and the ITU-T Video Coding Experts Group, is the latest standard for video coding. The goals of this standardization effort were enhanced compression efficiency, network friendly video representation for interactive (video telephony) and non-interactive applications (broadcast, streaming, storage, video on demand). H.264/AVC provides gains in compression efficiency of up to 50％ over a wide range of bit rates and video resolutions compared to previous standards. Compared to previous standards, the decoder complexity is about four times that of MPEG-2 and two times that of MPEG-4 Visual Simple Profile. This paper provides an overview of the new tools, features and complexity of H.264/AVC.
標(biāo)簽： the collaboration between Experts
上傳時(shí)間： 2013-12-30
上傳用戶：dongbaobao
是用java和jsp實(shí)現(xiàn)的bbs論壇系統(tǒng)。 有注冊登陸模塊，瀏覽功能模塊，發(fā)帖回帖模塊，帖子管理模塊，論壇設(shè)置功能模塊，管理版塊功能模塊，用戶管理模塊。-is java and jsp realized bbs forum system. Registered landing module, navigation module, barred when posting module, message management module, the Forum set up functional modules, Management plate functional modules, user management module.
上傳時(shí)間： 2014-01-17
上傳用戶：kiklkook
蟲蟲下載站版權(quán)所有 京ICP備2021023401號-1
