samsung arm2440开发板 数模转换测试程序，程序开发平台为qt平台开发环境为linux系统

ARM I2C 通讯软件(中断方式）,通过此程序，可以方便的完成CPU 和其他芯片之间的I2C通讯。-I2C communication with ARM (INT mode)，by it, could do communication between CPU and other chip.

关于51单片机控制595驱动的数码管程序，编译过，可直接使用，有HEX文件-51 single-chip 595 on control-driven digital control procedures, the compiler, and can be used directly, there are HEX file

研究所积累的资料9,大家秘密使用,千万别告诉别人!-9 Institute of accumulated data, we use a secret, please do not tell others!

用于GPRS远程电力抄表系统中采集器端的程序，编译运行环境为Keil C-for GPRS Remote Meter System Acquisition end of the program, compile operating environment for the Keil C

线路板（PCB）级的电磁兼容设计是现代设计高速电路必须考虑的问题，现提供给大家的这个设计方案可以帮大家（电子工程师）很好的解决这个问题。- The line board (PCB) the level electromagnetic compatibility design is a question which the modern design high-speed circuit must consider, presently provides for everybody this design proposal may help everybody (electronic engineer) very good solution this question.

modbus 通讯程序 物理层rs-485-Modbus communication procedures rs-485 physical layer

对4x4键盘进行扫描并将结果送数码管显示

矿工定位系统,包括单片机原理图,PCB,KEILC51原代码,带瓦斯检测功能,成熟产品正在使用中-Miners positioning systems, including single-chip schematic, PCB, KEILC51 the original code, with gas detection, mature product is in use

6位数码管显示的频率计，外部方波接到P3.4（T0），测试通过-6-bit digital tube display of the frequency counter, the external square wave received P3.4 (T0), the test

通过单片机对HT9200进行控制访问，实现电话的DTMF拨号功能-Through the single-chip microcomputer to control HT9200 visit realize phone DTMF dialing