非接触ic卡读写程序

本系统分电压测量和信号产生输出两大部分，电压测量部分以模拟电路为主，配合放大模块、A/D转化模块、显示模块；通过凌阳单片机进行数据处理，在误差允许范围内显示测量电压值。信号产生以直接数字式频率合成器为核心，经过AT89S52对DDS芯片内部进行控制，使之输出标准正弦波形，利用编程实现频率预置、步进，达到电压输出频率的可调节步进。通过调试与测量完成了题目的基本部分和全部发挥部分的要求并有自己的创新。-Voltage measurement points of the system and the output of two major signals, voltage measurement circuitry to simulate the main part, with the amplification module, A/D conversion module, display module through Sunplus Single-chip data processing, in the range of error allowed shows the value of measuring voltage. Signal generated by direct digital frequency synthesizer for the core of the DDS chip AT89S52 after the internal control standards so that the output sine wave shape, frequency of use of pre-programming, step to the output voltage adjustable frequency step. Debugging and measurement, through the completion of the basic part of the topic and all the requirements to play a part and have their own innovation.

at91rm9200的2.6.24的内核补丁-AT91RM9200 the 2.6.24 kernel patch

三星公司评估板2440的原理图,包含了所有的外围器件的原理图.比较详细-Samsung 2440 Evaluation of the diagram, includes all of the external device diagram. More detail

Smart Card Reader Interfacing with 8051 and small application.

PIC系列单片机典型应用程序集: 浮点运算-PIC MCU sets typical applications: floating-point operations

DSP2812实现GPIO流水灯 ：采用F2812扫描1×4独立式按键，如果按键按下，相应的标志位加一，记录按键按下的次数.学习CCS的使用； 掌握头文件的使用； 学习应用F2812的端口； 初识规范化程序设计。

PIC16F877单片机驱动基于S6B0724C程序-PIC16F877 MCU-driven program based on S6B0724C

简单介绍优化模型的基本概念和基本类型,重点介绍优化模型中的线性规划模型。-Briefly introduce the basic concepts of optimization model and the basic type of model focuses on optimizing the linear programming model.

基于ST407开发板设计，通过HID设备的USBOTG模式跟上位机通讯，上位机程序是HIDClient，在KEIL目录的ARM中可以找到。

此电路为计时器电路设计原理图，学习交流中-timer circuit to circuit design drawings, learning exchanges