A04_exp_OPENGL

经典游戏俄罗斯方块的一种简单实现，支持玩家信息的保存和统计。(A classic game of Tetris simple implementation, support the players the preservation of information and statistics.)

opencv中处理负样本时随机从大尺寸样本图片中截取负样本图片(opencv random intercept negative sample images from the big picture when dealing with a sample size of negative samples)

说明：  1. To design IIR filters in MATLAB to achieve various types of frequency selectivity, e.g.,lowpass, highpass, bandpass, etc 2. To implement the designed IIR filters in different architectural forms (e.g., direct form vssecond-order cascade form) using C6713 DSK 3. To perform real-time testing of the performance of the designed IIR filters.

该程序医院信息管理系统，用VisualC++和SQL Server来协同开发的(the process of hospital information management system, with VisualC and SQL Server to the Cooperative Development)

IC卡读写器软件DEMO，支持ISO14443A、ISO14443B、ISO15693协议， ISO14443A：NTAG203、NTAG210、NTAG212、NTAG213、NTAG215、NTAG216, Ultralight、Ultralight C,MIFARE Classic 1K/4K, Mifare DESFire, MIFARE ProX, FM11RF08、FM11RF32, FM1208、FM1216 ,符合ISO14443A标准的CPU卡. ISO14443B：AT88RF020, SR176、SRI512、SRT512、SRI2K、SRI4K, SGIDC(只读UID),符合ISO14443B标准的CPU卡. ISO15693： I.CODE SLI, Tag-it HI-I Plus, 符合ISO15693标准的卡.(IC Card Reader Writer DEMO，support ISO14443A、ISO14443B、ISO15693 ， ISO14443A：NTAG203、NTAG210、NTAG212、NTAG213、NTAG215、NTAG216, Ultralight、Ultralight C,MIFARE Classic 1K/4K, Mifare DESFire, MIFARE ProX, FM11RF08、FM11RF32, FM1208、FM1216 . ISO14443B：AT88RF020, SR176、SRI512、SRT512、SRI2K、SRI4K, SGIDC. ISO15693： I.CODE SLI, Tag-it HI-I Plus.)

说明：  freakz是一个彻底的开源zigbee协议，而contiki也是一个彻底的开源操作系统，而且这个操作系统短小精悍，非常适合“物联网”时代的MINI型设备，同时，这套系统在全球已经拥有了众多的支持与使用者，已经开发了非常多的应用，甚至有像IPV6这么强大而且的应用，可以在其官方网站上下载到全套的代码！contiki是开源的，可移植的，针对存储空间受限的网络化嵌入式系统和无线传感器网络的多任务操作系统。而且contiki的代码全部为C语言写成，用GCC进行编译，对广大应用c语言多年的开发者来说，减少了学习另外一种语言与编译平台所带来的时间花费。对很多开发者和初学者来说，对Linux+GCC的平台不熟悉，所以，可以选用IAR这个极其稳定、易用的编译平台，对contiki进行移植。(Freakz is a complete open source ZigBee protocol, and Contiki is a completely open-source operating system, and the operating system is small, very suitable for the "Internet of things" in the era of the MINI equipment, at the same time, this system has the support of many in the world and the users, applications have been developed very much even so, applications like IPV6 and powerful, can be downloaded to a full set of code in its official website! Contiki is an open source, portable, multi task operating system for memory constrained networked embedded systems and wireless sensor networks. Moreover, Contiki's code is written in C language, compiled by GCC, which reduces the time cost of learning another language and compiler platform for developers who have been using C language for many years. For many developers and beginners, Linux+GCC is not familiar with the platform, so you can use IAR, a very stable and easy to use compiler platform for Contiki transplantation.)

一个链路计算的程序，很适用，VC调用matlab(A link calculation procedures, it is applicable, VC call matlab)

PDF文件格式进行介绍，对正在进行PDF二次开发的人员有一定参考价值。(Specification of PDF File Format)

这是一个模仿windows鼠标框选的程序，希望对大家有用。(This is a program that immitates the mouse selectbox.)

VC++6.0软件生成Altera公司FPGA内部存储器ROM初始化数据mif格式文件。方便通过QuartusII导入波形等参数。强调这个是例子，生成的是一个定点的正弦数据表文件，需要用到的请自行修改源代码。(This software generates internal memory ROM initialization mif format data file for FPGA product by Altera. Facilitate the passage of the waveform parameters such as import QuartusII)