The STi7141 is a highly integrated SoC (systemon- chip) designed to meet the demanding needs of the interactive cable set top box market place. The STi7141 integrates all the major system functions into a single device, and provides world leading, multi-layer, advanced security technologies to protect valuable video and audio assets.
標(biāo)簽： integrated demanding designed systemon
上傳時(shí)間： 2014-01-14
上傳用戶：894898248
image processing supposed to provide an authentication for the user. Authentication is granted if the password was entered correctly
標(biāo)簽： Authentication authentication processing supposed
上傳時(shí)間： 2017-09-24
上傳用戶：thinode
this file is leverage algorithm written in matlab as m-file and tested in matlab.so anyone can ue this algorithm and any bug can be reported
標(biāo)簽： matlab algorithm leverage written
上傳時(shí)間： 2017-09-28
上傳用戶：zhaoq123
A pdf regarding, reading of bar codes from mobile phones. All types of bar codes can be read from the mobile phones. It includes the details regarding, how to convert the bar codes into appropriate formats and then to verify it for the geniality.
標(biāo)簽： codes from bar regarding
上傳時(shí)間： 2013-12-26
上傳用戶：xinzhch
CSNG-I 伽馬能譜，自然伽馬能譜圖，U，Th，K
標(biāo)簽： CSNG-I 伽馬能譜
上傳時(shí)間： 2015-04-13
上傳用戶：longge
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the direct derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh, but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for problems with discontinuities.
標(biāo)簽： 高精度格式
上傳時(shí)間： 2016-01-13
上傳用戶：ccsdcczd
Do you have a mobile phone? We think you probably do, one way or another. We would also guess that you might use it for many diff erent things in the course of your everyday life—as a telephone certainly, but also as an address book, as a clock or watch, as a camera, or now as a connection to your computer, email and the internet. Th ere will be a range of people you use it to contact (or not), and various strategies you use to take calls—or send texts, or take photos, or receive emails, or search online (or not, in diff erent situations). Th ere are also likely to be a range of social relation- ships in your life that your mobile phone helps to maintain—or disrupts, or inter- venes in, or makes possible, or complicates, or just plain helps to handle.
標(biāo)簽： Communications Introduction Mobile Media New An to
上傳時(shí)間： 2020-05-30
上傳用戶：shancjb
LTC2756 18位乘法串行輸入電流輸出數(shù)模轉(zhuǎn)換器DAC模塊ALTIUM原理圖+PCB文件，硬件4層板設(shè)計(jì)，大小為66mmx39mm，ALTIUM設(shè)計(jì)的工程文件，包括完整的原理圖和PCB文件，可以做為你的設(shè)計(jì)參考。 原理圖器件列表： Library Component Count : 14 Name Description ---------------------------------------------------------------------------------------------------- AD8397ARDZ Imported Capacitor CAP.,1uF,X74,10V,10%,1206 Header 10X1 2.54 Header, 100mil, 2x1_1Header, 100mil, 2x1, Tin plated, TH Header, 100mil, 3x1 Header, 100mil, 3x1, Tin plated, TH KJDZ-2 快接端子 LT1012 LT1012 LT1360 LT1360 LTC2054_1 LTC2054 LTC2756AIG LTC2756AIG LTC6244 Imported LTC6655 LTC6655 Resistor RES.,1K OHMS,5%,1/16W,0603 SMA-KE CONNECTOR, SHEILDED, END LAUNCH JACK, GOLD PLATED, FOR 0.062 PCB, EDGE MOUNTED
標(biāo)簽： 數(shù)模轉(zhuǎn)換器
上傳時(shí)間： 2021-12-22
上傳用戶：
因此，您想編寫一個(gè)內(nèi)核模塊。您知道C，您已經(jīng)編寫了一些可以作為進(jìn)程運(yùn)行的常規(guī)程序，現(xiàn)在您想知道真正的動(dòng)作在哪里，一個(gè)通配指針可以擦掉文件系統(tǒng)，核心轉(zhuǎn)儲(chǔ)意味著重新啟動(dòng)。內(nèi)核模塊到底是什么？模塊是可以根據(jù)需要加載和卸載的代碼段。它們擴(kuò)展了內(nèi)核的功能，而無需重新引導(dǎo)系統(tǒng)。例如。模塊驅(qū)動(dòng)程序的一種類型是設(shè)備驅(qū)動(dòng)程序，它允許內(nèi)核訪問沒有模塊的系統(tǒng)硬件，我們將不得不構(gòu)建單片內(nèi)核并將新功能直接添加到內(nèi)核映像中，除了具有更大的內(nèi)核之外，這還具有缺點(diǎn)每次我們想要新功能時(shí)都要求我們重建并重新啟動(dòng)內(nèi)核的過程So, you want to write a kernel module. You know C, you, ve written a few normal programs to run as processes, and now you want to get to where the real action is, to where a single wild pointer can wipe out your file system and a core dump means a reboot.What exactly is a kernel module? Modules are pieces of code that can be loaded and unloaded into th upon demand. They extend the functionality of the kernel without the need to reboot the system. For example.one type of module is the device driver, which allows the kernel to access hardware connected to the syste without modules, we would have to build monolithic kernels and add new functionality directly into the em ernel image, Besides having larger kernels
標(biāo)簽： linux
上傳時(shí)間： 2022-03-30
上傳用戶：
基于Proteus仿真前言：本文詳細(xì)介紹了DS18B20原理，并在后面舉例說明了其在單片機(jī)中的應(yīng)用，所舉例子包含Proteus仿真電路圖，源程序，程序注釋詳細(xì)清楚。1、DS18B20簡介：DS18B20溫度傳感器是DALLAS公司生產(chǎn)的1-wire式單總線器件，具有線路簡單，體積小的特點(diǎn)，用它組成的溫度測(cè)量系統(tǒng)線路非常簡單，只要求一個(gè)端口即可實(shí)現(xiàn)通信。溫度測(cè)量范圍在一55℃~+125℃之間，分辨率可以從9~12位選擇，內(nèi)部還有溫度上、下限報(bào)警設(shè)置。每個(gè)DS18B20芯片都有唯一的序列號(hào)，所以可以利用多個(gè)DS18B20同時(shí)連接在同一條總線上，組成多點(diǎn)測(cè)溫系統(tǒng)。但最多只能連接8個(gè)，如果數(shù)量過多，會(huì)使供電電源電壓過低，從而造成信號(hào)傳輸?shù)牟环€(wěn)定。2、DS18B20結(jié)構(gòu)：如右圖所示，DS18B20有三只引腳，VCC、DQ和GND。DQ為數(shù)字信號(hào)輸入/輸出端（DQ一般接控制器（單片機(jī)）的一個(gè)1/0口上，由于單總線為開漏所以需要外接一個(gè)4.7K的上拉電阻）；GND為電源地；VDD為外接供電電源輸入端（在寄生電源接線方式時(shí)接地）。DS18B20內(nèi)部結(jié)構(gòu)主要由四部分組成：64位光刻ROM、溫度傳感器、非揮發(fā)的溫度報(bào)警觸發(fā)器TH和TL、配置寄存器。光刻ROM中的64位序列號(hào)是出廠前被光刻好的，它可以看作是該DS18B20的地址序列碼。64位光刻ROM的排列是：開始8位是產(chǎn)品類型標(biāo)號(hào)，接著的48位是該DS1B20自身的序列號(hào)，最后8位是前面56位的CRC校驗(yàn)碼（循環(huán)冗余校驗(yàn)碼）。光刻ROM的作用是使每一個(gè)DS18B20都各不相同，這樣就可以實(shí)現(xiàn)一根總線上掛接多個(gè)DS18B20的目的。溫度傳感器可完成對(duì)溫度的測(cè)量，以12位轉(zhuǎn)化為例，用16位符號(hào)擴(kuò)展的二進(jìn)制補(bǔ)碼讀數(shù)形式提供。
上傳時(shí)間： 2022-07-02
上傳用戶：
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