ISO / IEC 14496

用8位数码管组成显示电路提示信息，当输入密码时，只显示“8.”，当密码位数输入完毕按下确认键时，对输入的密码与设定的密码进行比较，若密码正确，则门开，此处用LED发光二极管亮一秒钟做为提示，同时发出“叮咚”声；若密码不正确，禁止按键输入3秒，同时发出“嘀、嘀”报警声；若在3秒之内仍有按键按下，则禁止 -With 8-bit digital tube display circuit message, when the input password, only shows "8.", When the median enter password press the confirm button when finished to set the password with the password for comparison, if the password correct, then the door opened here with a bright LED light-emitting diodes as a matter of seconds suggests that at the same time issued a "ding dong" sound if the password is not correct to prohibit the importation of key three seconds, at the same time issued a "嘀,嘀" alarm sound if within 3 seconds press the button there, then the prohibition of

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FAT32文件系统原理，网上少有的中文文字说明FAT32文件-Principle FAT32 file system, on-line rare in the Chinese text FAT32 file

指纹识别心得，做指纹识别算法的可以参考一下。-Fingerprint identification experience, making fingerprint recognition algorithm that can be reference.

1 概述 1.1 编写目的 本文档的编写目的是：详细定义×××××软件的总体功能；给出系统的结构设计，作为过程设计和程序编写的依据。 1.2 参考资料 包括： a. 项目来源； b. 本文档中引用到的规范和资料等； c. 列出这些规范和资料的作者、编号、标题、发表日期、出版单位或资料来源。 1.3 术语和缩写词* 列出本文档中用到的专门术语的定义和缩写词，缩写词要给出中文译名和英文全称，常用的不需要定义。 2 需求概述 2.1 目标与需求 概述系统的特性和需求，扩充软件需求说明中的信息，给出增加的细节，详尽地指出对软件需求说明中有关特性和需求做出的变更。 2.2 环境描述 描述运行软件系统所需的软、硬件环境；描述开发软件系统所需的软、硬件环境。 2.3 条件和限制 描述可能影响设计方案形成及实施的条件和限制。 -prepared an overview 1.1 purpose of this document is prepared : detailed definition x x x software overall function; given the structural design, As a process and procedures for the preparation of the design basis. 1.2 reference include : a. source projects; B. This document quoted the norms and information; c. presents information on these norms and the author of the serial number, title, date of publication, the publishing unit or source of information. 1.3 Terms and Abbreviations* List of the documents used in the definition of the jargon and abbreviations words, acronym given to the Chinese tra

方案原理图，芯片AK1025的主控，对应的接口和定义-Schematic diagram of the program

altera ubs blaster 原理图-altera ubs blaster diagram

tutorial to work with xilinx fpga

计算机数据结构c语言描述。 与教材配合（严蔚敏）。-C language description of a computer data structure. And materials to complement (Yan Wei-min).

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