stm32模拟i2c读取eeprom程序

滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)

powertossim zip file containg sample, class, library file for developlment

说明：  红外调制发射，可以参考，38k载波调制，实现轻松(Infrared modulated emission)

由上海交大的同学开发的，C++语言，代码质量很高 。去年我们参加KDD竞赛时用过，非常好用，SVDFeature包含一个很灵活的Matrix Factorization推荐框架，能方便的实现SVD、SVD++等方法, 是单模型推荐算法中精度最高的一种。SVDFeature代码精炼，可以用相对较少的内存实现较大规模的单机版矩阵分解运算。

一个功能比较全面的串口调试工具。你值得拥有。(A more comprehensive functional serial debugging tools. You deserve. )

C# ae 网络分析 最短路径分析 GIS系统(C# ae shortest path network analysis GIS system)

一种Ipod Shuffle Cable检测程序(One kind of Ipod Shuffle Cable testing procedures)

16QAM的调制，它把输入的二进制数据以查找表的方式进行映射，从而提高信息传输率。(16QAM modulation, it is the input of binary data to find a way to map the table to enhance information transfer rate.)

该程序用来提取图像中目标区域的harris算子，并且能够进行图像检索，图像特征提取等等重要的项目分析，是实验室原创的东西，需要和数据库链接

keil 搭建ARM9 编译环境。arm9 lcd裸机程序。掌握裸机开发，更好的掌握底层开发，为uboot的学习，深度剖析，移植做铺垫。