种子填充算法

计算按频率抽取的基4快速傅里叶变换算法，与基2FFT相比，基4FFT的乘法量约减少25 。(Calculating frequency taken by fast Fourier transform algorithm base 4, compared with the base 2FFT the base 4FFT multiplication about 25 less.)

说明：  1、采用超声波测距，速度快，精度高，精度1毫米。 2、按键设置设置报警距离，上限和下限。 3、LCD1602液晶显示。 4、结构简洁，稳固，高效。(1. Ultrasonic distance measurement, high speed, high precision, accuracy of 1 mm. 2. Press the key to set the alarm distance, upper limit and lower limit. 3. LCD1602 liquid crystal display. 4. The structure is simple, stable and efficient.)

以SIFT特征为目标输入，LDAHash方法进行降维实现目标识别(SIFT features input LDAHash method to reduce the dimensionality of the target recognition)

只能输入数字和小数点的控件-can only import figures and the decimal point control

天波超视距雷达系统仿真(多波束形成)，代码在paper中，而且给出了详细的说明，能够更好理解田博超市距雷达的工作原理(Horizon radar system simulation (multi-beam forming), the code in the paper, but also gives a detailed description, to better understand the field Bo supermarket works from the radar)

IN260采集电流，利用I2C通信，读操作，写操作，各个寄存器的用法(IN260 collects current, uses I2C communication, read operation, write operation, the use of registers)

TM32的高级定时器TIM1可以产生互补的PWM，并且可以通过相关寄存器的设置使能或关闭PWM的输出。在编写BLDC的驱动程序时，本人利用TIM1的channel1,2生成了三路互补的PWM波形，定时器驱动程序(The advanced timer TIM1 of TM32 can generate complementary PWM, and it can enable or close the output of PWM through the setting of related registers. When writing BLDC driver, I use TIM1 channel1,2 to generate three complementary PWM waveforms, timer driver.)

关于图像水印,VC++语言运行程序,可以正常正常运行.希望有所帮助.

ucos_ii移植stm32f4官网代码资料()

一个万年历的c51源码，带DS18B20温度检测模块(A calendar of c51 source code, with DS18B20 temperature detection module)