51_gprs

AD9851中文资料，为pdf格式，资料比较详细，希望对需要者有所帮助。(AD9851 Chinese data)

Energy efficiency is the most important design goal for wireless sensor networks (WSNs). In this paper, we propose an energy-efficient cooperative MIMO scheme, which combines energy-efficient LEACH (EE-LEACH) protocol and cooperative MIMO. We name it as EE-LEACH-MIMO scheme. EE-LEACH is an improved LEACH algorithm, in which the network is partitioned to sectors with equal angle for avoiding the distribution non-uniformity of cluster heads. In EE-LEACH-MIMO scheme, the location and the residual energy of each node are considered when the cluster heads for clustering and cooperative nodes for MIMO system are chosen. For comparisons, LEACH, EE-LEACH, the simple cooperative scheme with LEACH and MIMO (LEACHMIMO), and EE-LEACH-MIMO scheme are simulated. The result shows that EE-LEACH-MIMO scheme can well balance the network load, save energy and prolong the network lifetime

说明：  c8051f020图片显示 不复杂 可以自己变换图片 第一次写这类的 不太好大家指出(the c8051f020 picture display pictures online to find the program)

锁相环用于电机转速精准检测，资料很不错，值得下载(Phase-locked loop for accurate detection of motor speed)

transfer file using sound card

一个通过USB->UART读取C8051F060的程序，实现曲线分析、放大、报表等，采用多线程。 驱动从www.silabs.com下载，要用NI的UI控件。完整版。(a USB-)

MSP430f135的I2c源代码，一个华为牛人写的，编程风格非常好，值得学习(I2c the MSP430f135 source code, a Huawei cattle were written a very good programming style, it is worth learning)

基于单片机开发的无线识别装置系统中使用的应答器程序代码(The development of microcontroller-based system using wireless identification device transponder code)

一个键盘监视小程序,可以读取任何键盘输入,并保存到C:CONIO.TXT文件中(a small keyboard surveillance procedures, can read any keyboard input, and the preservation of the C : CONIO.TXT document)

AD9858：频率从1M~120M输出可设置。通过测试。(AD9858: frequency from 1M ~ 120M output can be set. Pass the test.)