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Block-oriented

AAC Encoder

·文件列表: aacenc.h aac_qc.c aac_qc.h aac_se_enc.c aac_se_enc.h all.h bitstream.c bitstream.h block.h COPYING dolby_def.h

標簽： Encoder nbsp AAC

上傳時間： 2013-07-01

上傳用戶：1966640071
視頻差分放大器帶來低電壓應用的多功能性

The LT®6552 is a specialized dual-differencing 75MHzoperational amplifier ideal for rejecting common modenoise as a video line receiver. The input pairs are designedto operate with equal but opposite large-signal differencesand provide exceptional high frequency commonmode rejection (CMRR of 65dB at 10MHz), therebyforming an extremely versatile gain block structure thatminimizes component count in most situations. The dualinput pairs are free to take on independent common modelevels, while the two voltage differentials are summedinternally to form a net input signal.

標簽： 視頻差分放大器低電壓多功能

上傳時間： 2014-12-23

上傳用戶：13691535575
三相SPWM逆變器的調制建模和仿真

簡單介紹了三相SPWM逆變器的組成和工作原理，通過計算機對三相SPWM逆變器進行Matlab/Simulink建模和仿真，研究逆變電路的輸入輸出及其特性。仿真分析經逆變后得到的電壓電流的特性。通過運用Matlab/Simulink和Power System Block（PSB）電力系統模塊集工具箱仿真環境，對電路進行建模、計算和仿真分析。MATLAB軟件中的Simulink，是為數不多的完全滿足這些條件和要求的軟件。并且憑借他在科學計算方面的天然優勢建立了從設計構思到最終實現設計要求的可視化橋梁。被廣泛應用于線性系統、非線性系統及數字信號處理的建模和仿真中。

標簽： SPWM 三相逆變器調制

上傳時間： 2013-11-12

上傳用戶：yulg
nios ii 入門手冊中文版

nios ii 入門手冊中文版一、建立quartus ii工程首先，雙擊quartus ii 9.1圖標打開軟件，界面如下圖1.1所示 1.1 新建工程（1）點擊file –>New Project Wizard 出現圖1.2所示的對話框。（2）點擊Next。如圖1.3所示：第一行是工程的路徑，二、三行為實體名。填好后點擊Next。（3）此處可選擇加入已設計好的文件到工程，點擊Next。（4）選擇設計器件如圖1.5所示。接著點擊Next （5）接著點擊Next。無需改動，點擊finish，顯示如下圖所示。（6）此時，工程已經建立完成，接下來需要建立一個原理圖輸入文件，點擊file –>New ->Block Diagram/Schematic File 后如圖所示。

標簽： nios ii 入門手冊

上傳時間： 2014-12-25

上傳用戶：cx111111
單片機Flash存儲器壞塊自動檢測

在深入了解Flash存儲器的基礎上，采用單片機自動檢測存儲器無效塊。主要通過讀取每一塊的第1、第2頁內容，判斷該塊的好壞，并給出具體的實現過程，以及部分關鍵的電路原理圖和C語言程序代碼。該設計最終實現單片機自動檢測Flash壞塊的功能，并通過讀取ID號檢測Flash的性能，同時該設計能夠存儲和讀取1GB數據。 Abstract: On the basis of in-depth understanding the Flash chips，this paper designs a new program which using the SCM to detect the invalid block.Mainly through reading the data of the first and second page to detect the invalid block.Specific implementation procedure was given,and the key circuit schematic diagram and C language program code was introduced.This design achieved the function of using the MCU checks the invalid block finally，and increased the function by reading the ID number of Flash to get the performance of the memory.And the design also can write and read1GB data

標簽： Flash 單片機存儲器自動檢測

上傳時間： 2013-10-25

上傳用戶：taozhihua1314
TLC1549串口傳輸與單片機的AD設計

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.

標簽： 1549 TLC 串口傳輸

上傳時間： 2014-07-16

上傳用戶：blans
基于MSP430F149的智能電池巡檢系統的設計

介紹了電力操作電源與智能電池巡檢系統的特點，給出了一種基于超低功耗單片機MSP430 F149針對中小型變電站自動化運行的專用設備的基本設計原理及實現方法，最后給出了詳細硬件構成和軟件實現。該系統能滿足中小型變電站安全、可靠、自動運行的要求，并通過與上位機的串行通信實現變電站的遠程管理和控制。 Abstract: The characters of the intelligent battery data logging system of the electric operation power are introduced.The basic design principle and the implemented methods of the special equipment which only designed for the middle or small transformer substation based on MSP430F149 are prescribed. Finally, the hardware block diagram and the software flow chart are also given. The function that the system finally needs to realize can basically meet with the middle or small transformer substation’s satisfy, reliably,and automatic running.And it can also realize the transformer substation long-distance management and control by serial communicating with the host computer.

標簽： 430F F149 MSP 430

上傳時間： 2013-11-25

上傳用戶：黃華強
LPC1769 LPC1768 LPC1767 LPC176

The LPC1769/68/67/66/65/64 are ARM Cortex-M3 based microcontrollers for embedded applications featuring a high level of integration and low power consumption. The ARM Cortex-M3 is a next generation core that offers system enhancements such as enhanced debug features and a higher level of support block integration.

標簽： LPC 1769 1768 1767

上傳時間： 2014-02-20

上傳用戶：13215175592
LPC1700以太網MIIM接口應用筆記

The LPC1700 Ethernet block contains a full featured 10 Mbps or 100 Mbps Ethernet MAC (Media Access Controller) designed to provide optimized performance through the use of DMA hardware acceleration. Features include a generous suite of control registers, half or full duplex operation, flow control, control frames, hardware acceleration for transmit retry, receive packet filtering and wake-up on LAN activity. Automatic frame transmission and reception with Scatter-Gather DMA off-loads many operations from the CPU.

標簽： 1700 MIIM LPC 以太網

上傳時間： 2013-11-09

上傳用戶：geshaowei
單片機在健身車轉速測量中的應用

本文介紹了一種基于單片機的健身車轉速測量系統。該系統具有電路簡單、使用方便等特點。文中詳細介紹了該系統的工作原理,并且給出了它的硬件原理圖和軟件設計程序框圖。關鍵詞:轉速　單片機　測量ABSTRACT :This paper introduces a measuring system of the rotational velocity of exercise bike based on single - chip microcomputer . It has such advantages : simple circuit ,convenient use and so on. The work principle is presented in detail in this paper and the block diagram of hardware and program flow chart are giv2 en as well .KEYWORDS :Rotational velocity 　Single - chip microcomputer 　Measuring

標簽： 單片機中的應用轉速測量

上傳時間： 2013-11-02

上傳用戶：源弋弋