2的20次方的快速傅里叶变换

脉宽调制，亲自调试通过，是一个很好学习的资料(Pulse width modulation, self-testing, is a very good learning material.)

说明：  stm32f103 stm32cubemx 串口中断发送接收(STM32F103 stm32cubemx serial port interrupt sending and receiving)

DataBurn is an Objective-C example which demonstrates some of the features of DRTracks. The sample illustrates how to create a DRFolder from an existing folder on the source disk and burn it to disc, creating a hybrid ISO9660/Joliet/HFS+ data CD. The sample also uses the DiscRecordingUI framework to present the standard burn setup and progress user interfaces.

oled程序，包含51，stm32。m430。arduio，等(OLED program, including 51, stm32. M430. Arduio, etc.)

此为单线加密芯片的驱动程序，已调试，可驱动芯片进行加密操作！(This is the driver of single line encryption chip.)

经典算法下载

朴素贝叶斯分类器，是一种用于应用程序如文本分类的知名生成分类算法 c + + 实现。朴素贝叶斯算法要求的概率分布是离散。OpenPR-铌采用多项式事件模型描述，最大似然 estimatewith 学习参数的拉普拉斯平滑技术。稀疏数据结构被定义为表示特征向量在 OpenPR NB，寻求更高的计算速度。

SIFT（Scale-invariant feature transform）是一种检测局部特征的算法，该算法通过求一幅图中的特征点（interest points,or corner points）及其有关scale 和 orientation 的描述子得到特征并进行图像特征点匹配，获得了良好效果.

采用单片机C语言编程，控制矩阵键盘，实现动态扫描心得(matrix keyboard control)

SG-TOP808 SJA1000实验程序CAN转232 5kbps(SG-TOP808 SJA1000 CAN turn 232 5kbps experimental procedure)