用SMART2200低成本的实现OV9650摄像头驱动，并在TFT上显示，基于ARM7操作频率较低，进行了像素时钟的降频，故输出一张图片的时间大于1S.-SMART2200 with the realization of low-cost drive OV9650 camera and TFT displays, the lower operating frequency based on the ARM7, a pixel clock frequency of the drop, so the

利用ucos的时间tick，对I/o端口（比如Beep）进行一定频率（频率可设定）的操作-Utilizing the time tick fuction of uCos, to set/unset one output port at a specified frequency(i.e. Beep function)

Mutual information is useful to calculate a set of procedures, Time series data analysis Mellin transform tool, You can get a very accurate amplitude, frequency, phase estimation.

Is a practical method of path planning, For time-frequency analysis algorithm, esprit algorithm signal frequency interference can be assesse.

For time-frequency analysis algorithm, Rapid expansion of random spanning tree algorithm, By matlab code.