双机通信过程中采用点对点通信的从机部分示例

void InitGoertzel(void) 作用：初始化算法参数 用法：采用算法进行检测前执行一次，如果需要改变参数，调用SetParameter() float CGoertzel::GetMagnitude(unsigned char * sampleData, int length) //算法主接口 作用：对采集下来的音频数据用算法处理，返回一个结果 参数：sampleData－音频数据缓冲地址指针； length-缓冲区尺寸(音频数据数量),字节数； 返回值：返回算法结果。 void SetParameter(DWORD set_SampleRate, DWORD set_TargetFreq, DWORD set_BlockSize) 作用：设置算法参数； 参数：set_SampleRate-音频数据抽样速率； set_TargetFreq-目标信号频率； set_BlockSize－算法数据块尺寸(采样点)； 用法：调用本函数后，需要调用一次InitGoertzel(void)才会生效-void InitGoertzel (void) function: initialization algorithm parameters Usage: The algorithm performs a pre-test, if the need to change the parameters, calling SetParameter () float CGoertzel:: GetMagnitude (unsigned char* sampleData, int length)// Algorithm for the main interface role: to collect audio data from the treatment algorithm to return a result parameter: sampleData-audio data buffer address pointer length-buffer size (the number of audio data), number of bytes return value: the return of

51外部中断例程-51 external interrupt routines

家用热水器，用汇编编写，支持代码贡献机制，好东西大家分享-Household water heaters, with the compilation prepared to support the code contribution mechanism to share good things

一个对4X4数字键盘进行行&列扫描,获取扫描码的程序,支持符合键,串键,软件去抖.-one pair of 4x4 digital keyboard ranks scanning, access code scanning procedures, with key support and collaborate keys, software to tremble.

测试温湿度以及烟感报警,硬件采用长应8000系列-Test temperature and humidity as well as the Smoke Alarm, hardware should be used long-8000 Series

一个解码器程序，内含派尔高－Ｄ协议，自已写的，只写了一个协议．同时增加了一个串口，用５１单片机的一个脚进行模拟串行口．有兴趣可以看一下．-a decoder procedures intron Pelco-D agreements own writing, just write an agreement. While an additional serial port, using the MCU 51 feet for a simulated serial port. Interested can look at.

一个完整的STC89LE5412程序，实现２路电压，２路电流采样，滤波，和瞬间功率峰值计算-A complete STC89LE5412 procedures, to achieve 2-way voltage, 2-way current sampling, filtering, and calculation of instantaneous peak power

DK3400_3420 USB R_W source code - Keil-DK3400_3420 USB R_W source code- Keil

C51七种实用子程序集3-C51 seven practical subroutine Set 3

学习C51的同学， 可以看看这个 ， 有了这个， 保你学习进度可以提升3成速度。-If you wanna learn C51 more fast, this resoure maybe give you a helper.