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Gcomm is a serial communications program similar to seyon, but more modern, and easier to use. Works over serial port, via TCP/IP, or a pipe through another program. Supports xmodem/ymodem/zmodem protocols. Visit the gcomm.sourceforge.net home page for 系統(tǒng)是 Linux ，但是協(xié)議部分是可用的
標(biāo)簽：
communications
program
similar
easier
上傳時(shí)間：
2013-12-21
上傳用戶(hù)：PresidentHuang
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how to extend an OLE DB consumer template class and make it much easier to use in applications. I had also explained how you can utilize the power of C++ exception-handling feature to make your work easier, especially in error handling. It was just a small class in my last article.
標(biāo)簽：
applications
consumer
template
extend
上傳時(shí)間：
2014-11-26
上傳用戶(hù)：royzhangsz
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GTKores is a simple color picking tool, written in GTK+/C, and runs under Linux/X11. It makes easier tasks where you need hex color values, such writing CSS and HTML pages.
標(biāo)簽：
GTKores
picking
written
easier
上傳時(shí)間：
2014-08-19
上傳用戶(hù)：123啊
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Creating barcodes in Microsoft廬 Office has never been easier.
With BarCodeWiz Toolbar you can add barcodes to Microsoft廬 Office applications with a click of a button. In Microsoft廬 Word, create single barcodes, pages of labels, or mail merge documents. In Microsoft廬 Excel廬, select a range of cells and automatically convert each cell to a barcode. In Microsoft廬 Access廬, create reports with barcodes based on your data tables.
標(biāo)簽：
BarCodeWiz
Microsoft
Creating
barcodes
上傳時(shí)間：
2013-12-18
上傳用戶(hù)：asddsd
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Parallel port interfacing made easier
標(biāo)簽：
interfacing
Parallel
easier
port
上傳時(shí)間：
2013-12-23
上傳用戶(hù)：himbly
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We provide complete power solutions with a full lineup of power managementproducts. This brochure provides an overview of our high performance DC/DC switching regulatorcontrollers for applications including datacom, telecom, industrial, automotive, medical, avionicsand control systems. We make power design easier with our industry-leading field applicationengineering support; a broad selection of demonstration boards with schematics, layout filesand parts lists; SwitcherCAD® software for simulation, application notes and comprehensivetechnical documentation.
標(biāo)簽：
DCDC
性能
控制器
上傳時(shí)間：
2013-10-15
上傳用戶(hù)：lz4v4
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Abstract: A resistive feedback network is often used to set the output voltage of a power supply. A mechanical potentiometer (pot)conveniently solves the problem of adjusting a power supply. For easier automatic calibration, a mechanical pot can be replaced witha digital pot. This application note presents a calibration solution that uses a digital pot, because digipots are smaller, do not movewith age or vibration, and can be recalibrated remotely. This proposed solution reduces the susceptibility of the system to thetolerance of the digital pot's end-to-end resistance, making the solution optimal fordesigners. This application note also explainssome of the equations required to calculate the resistor chain values and to use a digital pot in this way. A spreadsheet withstandard reisistor values is available for easy calculations.
標(biāo)簽：
電源供應(yīng)器
數(shù)字電位器
應(yīng)用筆記
校準(zhǔn)
上傳時(shí)間：
2013-10-31
上傳用戶(hù)：caiguoqing
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Many system designers need an easy way to producea negative 3.3V power supply. In systems that alreadyhave a transformer, one option is to swap out the existingtransformer with one that has an additional secondarywinding. The problem with this solution is that manysystems now use transformers that are standard, offthe-shelf components, and most designers want toavoid replacing a standard, qualifi ed transformer with acustom version. An easier alternative is to produce thelow negative voltage rail by stepping down an existingnegative rail. For example, if the system already employsan off-the-shelf transformer with two secondary windingsto produce ±12V, and a –3.3V rail is needed, a negativebuck converter can produce the –3.3V output from the–12V rail.
標(biāo)簽：
458
DN
降壓轉(zhuǎn)換器
低電壓
上傳時(shí)間：
2013-10-09
上傳用戶(hù)：Jerry_Chow
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Analog Inputs and Outputs in an S7 PLC are represented in the PLC as a 16-bit integer. Over
the nominal span of the analog input or output, the value of this integer will range between -
27648 and +27648. However, it is easier to use the analog values if they are scaled to the
same units and ranges as the process being controlled. This applications tip describes
methods for scaling analog values to and from engineering units.
標(biāo)簽：
300
PLC
西門(mén)子
模擬量
上傳時(shí)間：
2013-11-17
上傳用戶(hù)：3294322651
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匯編器在微處理器的驗(yàn)證和應(yīng)用中舉足輕重，如何設(shè)計(jì)通用的匯編器一直是研究的熱點(diǎn)之一。本文提出了一種開(kāi)放式的匯編器系統(tǒng)設(shè)計(jì)思想，在匯編語(yǔ)言與機(jī)器語(yǔ)言間插入中間代碼CMDL（code mapping description language）語(yǔ)言，打破匯編語(yǔ)言與機(jī)器語(yǔ)言的直接映射關(guān)系，由此建立起一套描述匯編語(yǔ)言與機(jī)器語(yǔ)言的開(kāi)放式映射體系。基于此開(kāi)放式映射體系開(kāi)發(fā)了一套匯編器系統(tǒng)，具有較高層次上的通用性和可移植性?！娟P(guān)鍵詞】指令集，CMDL，匯編器，開(kāi)放式
Design of Retargetable Assembler System Liu Ling Feng Wen Nan Wang Ying Chun Jiang An Ping Ji Li Jiu IME of Peking University, 100871【摘要】An assembler plays a very important role in the field of microprocessor verifications and applications, thus how to build a retargetable assembler system has been a hotspot in this field for long time. This paper presents a new method about the retargetable assembler system design.It provides a kind of language CMDL, code mapping description language. During the process of assembling, assembler languages are firstly translated to CMDL, and then mapped to the machine codes. In an other word, CMDL is inserted between assembler languages and machine codes during the translation procedure. As a medium code, CMDL has a lot of features, such as high extraction, strong descript capabilities. It can describe almost all attributes of assembler languages. By breaking the direct mapping relationship between assembler languages and machine codes, the complexities of machine codes are hided to the users, therefore, the new retargetable assembler system has higher retargetable level by converting the mapping from assembler languages and machine codes to assembler languages and CMDL, and implementationof it becomes easier. Based on the new mapping system structure, a retargetable assemblersystem is developed. It proved the whole system has good retargetability and implantability.【關(guān)鍵詞】instruction set, symbol table, assembler, lexical analysis, retargetability
標(biāo)簽：
開(kāi)放式
匯編器
上傳時(shí)間：
2013-10-10
上傳用戶(hù)：meiguiweishi
