8051单片机上4*4矩阵键盘的扫描方式3

凌阳16位单片机的启动代码，它是源码，是凌阳的公司提供的-Sunplus 16-bit single-chip start-up code, it is the source code is provided by the company of Sunplus

本库函数为大容量(2M)Flash SST25VF016B的驱动函数 包括IO模拟SPI总线方式和C8051F020硬件SPI方式下的驱动 函数接口简单易用 代码规范简洁-The library functions for large-capacity (2M) Flash SST25VF016B driver function including IO simulation SPI bus mode and SPI mode C8051F020 hardware driver function interface specification concise easy-to-use code

可以熟悉51单片机中断机制 大大方便学习51单片机-Be familiar with the 51 single-chip interrupt mechanism would greatly facilitate study of 51 single-chip microcomputer

单片机演奏乐曲的程序，可以演奏生日快乐和三套车。-Singlechip music recital program, you can play happy birthday and the troika.

C8051F040的红外编码解码调试程序-C8051F040 infrared codec debugger

MSComm控件实现中文Win 9x下的通信[VB]51-MSComm Chinese Win 9x realization of communication [VB] 51

DS18B20测量温度 1602做为液晶显示温度 c语言编写 有注释-DS18B20 measuring temperature as a liquid crystal display 1602 temperature c languages have Notes

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

采用IAR在线调试ADI公司基于ARM7内核的AUUC7026的ADC程序-IAR debug using online ADI Corporation AUUC7026 based on ARM7 core of the ADC program

16*16点阵源C程序，keil开发,可以显示32个字,从左到右滚动显示。-16*16