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基于以太網的虛擬示波器設計

為提升虛擬儀器傳輸速率與實時性能，擴展監測范圍，在VC的軟件平臺上設計了一種全功能虛擬示波器。與傳統虛擬示波器相比，該系統采用嵌入式系統完成信號采集，采用工業以太網為傳輸介質，通過線性插值算法和多線程編程思想，實現波形顯示、參數計算、頻譜分析以及波形存儲及回放功能。實驗結果表明，該虛擬示波器可以實現20 kHz采樣頻率下的波形精確顯示，達到預期的各項指標。 Abstract: o enhance the transfer rate and real-time of virtual instrument performance， expand scope of monitoring， this paper uses the VCs software platform to design a fully functional virtual oscilloscope. Compared with traditional virtual oscilloscope， this system adopts the embedded system to complete the data acquisition， industrial Ethernet as the transmission medium used by the linear interpolation algorithm and multi-threaded programming ideas， namely to achieve waveform display， parameter calculation， spectrum analysis and waveform storage and playback. Experimental results show that the virtual oscilloscope can accurately display the waveform with 20kHz sampling frequency， and achieve the desired targets.

標簽： 以太網虛擬波器設計

上傳時間： 2013-11-25

上傳用戶：wbwyl
This software aims to create an applet and panel tools to manage a wireless interface card, such as

This software aims to create an applet and panel tools to manage a wireless interface card, such as IEEE 802.11 cards. The development will focus on Linux, as this is the most accessible platform, but will expand as we get access to more platforms

標簽： interface software wireless create

上傳時間： 2013-12-10

上傳用戶：semi1981
About: Paco (pacKAGE oRGANIZER) is a simple, yet powerful tool to aid package management when insta

About: Paco (pacKAGE oRGANIZER) is a simple, yet powerful tool to aid package management when installing programs from source code. It uses the LD_PRELOAD method to track package installations, and provides various options to keep the installed software organized. It s mainly a command line application but it has also an optional GTKMM interface. Release focus: Minor bugfixes Changes: Libpaco-log has been rewritten in C. This prevents a glibc installation failure when building LFS in chapter 6. The option -x|--expand has been removed. Several bugs have been fixed in paco, gpaco, and rpm2paco. Author: David Rosal

標簽： management oRGANIZER powerful pacKAGE

上傳時間： 2014-08-25

上傳用戶：weixiao99
Floating Window.It is descendant of TCustomPanel. You can: - Drag on its title bar. - Set title ba

Floating Window.It is descendant of TCustomPanel. You can: - Drag on its title bar. - Set title bar on the left (only for truetype font) - Show/Hide buttons on title bar - expand/shrink window (like tool window in CorelDraw)

標簽： title TCustomPanel descendant Floating

上傳時間： 2013-12-20

上傳用戶：wendy15
This the second tutorial of the Writing Device Drivers series. There seems to be a lot of interest i

This the second tutorial of the Writing Device Drivers series. There seems to be a lot of interest in the topic, so this article will pick up where the first left off. The main focus of these articles will be to build up little by little the knowledge needed to write device drivers. In this article, we will be building on the same example source code used in part one. In this article, we will expand on that code to include Read functionality, Handle Input/Ouput Controls also known as IOCTLs, and learn a bit more about IRPs.

標簽： the interest tutorial Drivers

上傳時間： 2016-01-28

上傳用戶：lmeeworm
To use the ATLTrace tool: Debug an MFC or ATL project select Start from the Debug menu. Selec

To use the ATLTrace tool: Debug an MFC or ATL project select Start from the Debug menu. Select MFC/ATL Trace Tool in the Tools menu. expand the tree control list in the Trace List window. Here you will see the running application, any modules within that application, and the trace categories for each module. Customize, for each process, module, and category, which information is displayed in the output window. The Trace level control in the Process group is related to the ATLTRACE2 level only those ATLTRACE2 messages with a level equal to or greater than the setting in the Trace level control will be displayed in the output window. Select Apply to put your settings into effect. You can save your settings, and load them the next time you debug the application use the Save and Load buttons.

標簽： Debug the ATLTrace project

上傳時間： 2014-01-15

上傳用戶：wfl_yy
一、本程序完成功能要求：完成兩個壓縮的8位多字節無符號BCD數相加的程序段。要求提供調試通過的源代碼、可執行程序和編程小結readme.txt文件。兩個操作數可以由鍵盤輸入。輸出要求：在屏幕

一、本程序完成功能要求：完成兩個壓縮的8位多字節無符號BCD數相加的程序段。要求提供調試通過的源代碼、可執行程序和編程小結readme.txt文件。兩個操作數可以由鍵盤輸入。輸出要求：在屏幕上顯示出參與運算的兩個加數和結果和。二、使用說明：點擊136_ZHJ.exe文件，然后根據提示輸入第一個數字，按回車；屏幕上會提示輸入第二個數字，根據提示輸入第二個數字，按回車后屏幕會顯示出計算結果。三、程序結構說明：共有如下五個子程序： KDISPLAY、 DISPLAY、 BCDADD、 BConvert、 AConvert、 expand。其功能分別為： KDISPLAY：顯示字符，其中BP中存放要顯示的字符的地址，CX中存放要顯示的字符個數 DISPLAY：用來顯示計算得到的結果 BConvert：將ASCII碼字符轉換成壓縮BCD碼 AConvert：將BCD碼轉換為ASCII字符 BCDADD：將讀入后轉換為壓縮BCD格式，然后相加。

標簽： readme 程序 BCD txt

上傳時間： 2013-12-21

上傳用戶：qweqweqwe
uart全功能實現.實現如下函數: U_Open, U_Close, U_GetBytes, U_PutBytes, U_GetBytesAvail, U_GetTxRoomL

uart全功能實現.實現如下函數: U_Open, U_Close, U_GetBytes, U_PutBytes, U_GetBytesAvail, U_GetTxRoomLeft, U_PutISRBytes, U_GetTxISRRoomLeft, U_Purge, U_SetOwner, U_SetFlowCtrl, U_ConfigEscape, U_SetDCBConfig, U_CtrlDCD, U_CtrlBreak, U_ClrRxBuffer, U_ClrTxBuffer, U_SetBaudRate, U_SendISRData, U_SendData, U_GetOwnerID, U_SetAutoBaud_Div, /*TY adds these to expand flexibility 2004/10/15*/ U_Register_TX_cb, U_Register_RX_cb, /*TY adds these to let virtual COM port can retrive exception log 2005/3/8*/ U_GetUARTByte, U_PutUARTByte, U_PutUARTBytes, /*for virtual com port to return DCB configuration*/ U_ReadDCBConfig, U_CtrlRI, U_CtrlDTR, U_ReadHWStatus

標簽： U_GetBytesAvail U_GetTxRoomL U_GetBytes U_PutBytes

上傳時間： 2013-12-08

上傳用戶：GHF
The DSKs or eZdspTM LF2407 and the DMC1500 make up a table top motor development system which allow

The DSKs or eZdspTM LF2407 and the DMC1500 make up a table top motor development system which allows engineers and software developers to evaluate certain characteristics of the TMS320F240, TMS320F243, and TMS320LF2407 DSPs to determine if the processor meets the designers application requirements. Evaluators can create software to execute onboard or expand the system in a variety of ways.

標簽： development eZdspTM system allow

上傳時間： 2013-12-24

上傳用戶：zhuoying119
This book is for merging practical electronic devices with the Internet, for hardware and software

This book is for merging practical electronic devices with the Internet, for hardware and software designers looking to expand their skills of JAVA programming.This book is a complete introduction to Internet-enabled devices,it provide all of the information to inexpensively build web-enabled hardware.

標簽： electronic for practical Internet

上傳時間： 2013-12-15

上傳用戶：dengzb84