Sat889c51snd1C

松下车载碟机的协议代码，用于多种汽车的原车配备机头的扩展协议(Panasonic Car turntables protocol code, the original car used in a variety of vehicles equipped with head of the extended protocol)

控制蜂鸣器pic18单片机程序,测试通过，已批量生产。(Pic18 microcontroller program to control the buzzer)

说明：  PIC单片机红外线遥控接收解码实例 //芯片配置字，看门狗关，上电延时开，掉电检测关，低压编程关，加密，4M晶体HS振荡(PIC Microcontroller Infrared Remote Control Receiver Decoder instance of// chip configuration word, watchdog off, power-on delay to open, brown-out detection pass, low-voltage programming off, encryption, 4M crystal oscillator HS)

8051/8096/8099/8048单片机汇编工具、 汇编语言、摩托罗拉m68HC11、m680x0系列汇编语言、inter8051单 片机汇编语言、dos未公开的秘密、windows进程控制、图形编程、 创新32位声开发、视频实例(8051/8096/8099/8048 SCM tools, Assembly language, Motorola m68HC11, m680x0 series of assembly language, inter8051 single Machine assembly language, dos not an open secret, windows process control, graphical programming, Innovative 32-bit sound, video examples)

数字开关测试的源程序，非常适合新51单片机的新手入门的学习。(Digital switch test source program, very suitable for novice start learning new 51 single-chip microcomputer.)

使用奇异值分解算法的prony算法用于电机故障诊断(SVD algorithm prony algorithm for the motor fault diagnosis)

基于STM32的双串口通信程序，能实现两个串口的收发，程序默认采用串口2接收数据，串口1发送(Based on the STM32 dual serial communication procedures, can achieve two serial transceivers, the program defaults to the serial port 2 receives the data, send the serial port 1)

利用kinect获取原始的音频波形，得到四声道的pcm波形。(Use kinect to get the original audio waveform, get pcm waveform four channels.)

PIC USB OSCILLOSCOPE PIC scope64.asm

说明：  下面的程序利用友元函数求两点间的距离。请你将有关的程序补充完整，并总结为什么这里要用友元函数来求两点间的距离。(using friend to get the result.)