詳細介紹了TLC1549系列模數轉換器的特點及工作原理，然后根據TLC1549的工作時序和A/D轉換原理針對實際問題編寫了詳細的匯編語言程序。 Abstract: A basic principle and characteristic of TLC1549 analog-to-digital converter are introduced? detailedly in this article.Through engineering-oriented illustration,a microcomputer programmer base on basic principle and time sequence of TLC1549 is writted.
上傳時間： 2014-07-16
上傳用戶：blans
Luminary Micro provides an analog-to-digital converter (ADC) module on some members of theStellaris microcontroller family. The hardware resolution of the ADC is 10 bits; however, due to noiseand other accuracy-diminishing factors, the true accuracy is less than 10 bits. This application noteprovides a software-based oversampling technique, resulting in an improved Effective Number OfBits (ENOB) in the conversion result. This document describes methods of oversampling an inputsignal, and the impact on precision and overall system performance.
標簽： Oversampling Techniques ADC fo
上傳時間： 2013-12-17
上傳用戶：zhyiroy
Luminary Micro Stellaris™ microcontrollers that are equipped with an analog-to-digital converter(ADC), use an innovative sequence-based sampling architecture designed to be extremely flexible,yet easy to use. This application note describes the sampling architecture of the ADC. Sinceprogrammers can configure Stellaris microcontrollers either through the powerful StellarisFamilyDriver Library or through direct writes to the device's control registers, this application note describesboth methods. The information presented in this document is intended to complement the ADCchapter of the device datasheet, and assumes the reader has a basic understanding of howADCsfunction.
標簽： Microcontr Stellaris Using the
上傳時間： 2013-10-14
上傳用戶：blans
計算機應用中，有時需處理的信息不是數字量，而是一些隨時間連續變化的模擬量，甚至是一些非電量，如溫度、壓力、速度等。模擬量的存儲處理困難。首先將非電的模擬信號變成與之對應的模擬電信號，這要通過各種傳感器來完成。計算機可處理的信息均是數字量（電脈沖信號）1和0，必須把要處理的模擬電量轉換成數字化的電信號，這需要模擬(Analog)與數字(Digital)轉換電路。數字到模擬轉換:(Digital to Analog Convert, D/A) D/A轉換電路是模擬電路加上電子開關。D/A轉換電路的核心是一個運算放大器。運算放大器的特性:(Operation Amplifier) K->無窮大， V和->0 傳遞函數：V0 = -Vi * R0/Ri Ii->0, I和=If梯形R-2R電阻網絡D/A轉換器Ki受一個8位二進制代碼控制 某位為1，對應開關K倒向右邊； 某位為0，對應開關K倒向左邊。Ki不論倒向哪邊，均為接地VA-VH 的電位為： VREF，1/2VREF，..1/128VREFVO= -VREF *（1/2K7+1/4K6+…+1/256K0）V0= -（0-255/256）VREF 8位D/A轉換器DAC0830系列器件國家半導體公司（NS)產品，0830、0831、0832。R-2R梯形電阻網絡D/A轉換器，雙緩沖結構。單電源、低功耗、電流建立時間1uS。與微計算機接口方便。8位D/A轉換器DAC0830系列器件ILE： 輸入鎖存允許； WR1#： 加載IN REG； WR2#: 加載DAC REG； XFER#: IN REG傳到DAC REG； Iout1,Iout2: 外接OA輸入； Rfb: 反饋電阻接OA輸出； VREF： 參考電源，控制輸出電壓變化范圍。
標簽： AD轉換
上傳時間： 2013-10-16
上傳用戶：lu2767
TIMER.ASM ********* [ milindhp@tifrvax.tifr.res.in ] Set Processor configuration word as = 0000 0000 1010 b. a] -MCLR tied to VDD (internally). b] Code protection off. c] WDT disabled. d] Internal RC oscillator [4 MHZ].
標簽： configuration Processor milindhp tifrvax
上傳時間： 2015-05-24
上傳用戶：wqxstar
The XML Toolbox converts MATLAB data types (such as double, char, struct, complex, sparse, logical) of any level of nesting to XML format and vice versa. For example, >> project.name = MyProject >> project.id = 1234 >> project.param.a = 3.1415 >> project.param.b = 42 becomes with str=xml_format(project, off ) "<project> <name>MyProject</name> <id>1234</id> <param> <a>3.1415</a> <b>42</b> </param> </project>" On the other hand, if an XML string XStr is given, this can be converted easily to a MATLAB data type or structure V with the command V=xml_parse(XStr).
標簽： converts Toolbox complex logical
上傳時間： 2016-02-12
上傳用戶：a673761058
The TW2835 has four high quality NTSC/PAL video decoders, dual color display controllers and dual video encoders. The TW2835 contains four built-in analog anti-aliasing filters, four 10bit Analog-to-Digital converters, and proprietary digital gain/clamp controller, high quality Y/C separator to reduce cross-noise and high performance free scaler. Four built-in motion,
標簽： dual controllers decoders display
上傳時間： 2017-03-20
上傳用戶：來茴
這是I2c網關Id獨立燒寫程序， 燒寫的ID必須要求是：“0~9”、“a~z”、“A~Z”的16為字符才能燒寫成功。 其中當是輸入的小寫字母時，自動轉換為大些燒入。 如： 1） # ./burnID 0123456789abcdef 燒入的是：0123456789ABCDEF 2] # ./burnID 0123456789@ cdef 燒入不成功，因為有其他字符 3） # ./burnID 0123456789abcdefDfs 燒入也不成，因為超過16個字符 built-in analog anti-aliasing filters, four 10bit Analog-to-Digital converters, and proprietary digital gain/clamp controller, high quality Y/C separator to reduce cross-noise and high performance free scaler. Four built-in motion,
上傳時間： 2017-03-20
上傳用戶：playboys0
Main program running when workpiece is ready on deferent belt(deferent_ready=ture). * Call Square_Wave subroutine to generate 0.5ms square wave on P1.2 to drive * electromotor,then drive deferent belt step forward. When it steps to the measure * zone, it stops to be measured. Then call A_D subroutine to transform analog * signals to digital signals , after then call serial subroutine to transfer * digital signals to PC. Call square wave subroutine to drive deferent belt step to * original position waitting for defere ready flag to run the next circle.
標簽： deferent_ready workpiece deferent program
上傳時間： 2017-08-31
上傳用戶：baiom
16-, 14-, 12-Bit, Six-Channel, Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS
上傳時間： 2018-06-07
上傳用戶：nj精靈
