基于单片机8051的嵌入式开发指南主要是rty51和UCOS操作系统的开发....

Keil70完全安装文件-Keil70 complete installation

用c语言串口接受数据的功能 在单片机中很实用！-C language accepted by serial single-chip data at a very practical!

串口发送一个字符，希望对刚开始学单片机的同学有帮助-Serial port to send a character, want to have just started to learn microcontroller help students

C51的FAT文件系统-C51 FAT File System

实现温度的采集与显示功能，内部温度传感器定时采样，并将采集到的温度信息广播发送出去，另外的节点接收到温度信息后通过串口向计算机上报，串口通信波特率为576-Acquisition and implementation of the temperature display function, the internal temperature sensor sampling timing and the temperature of collected radio to send information out to the other node to receive temperature information reported through the serial port to the computer, the serial communication baud rate to 57600

51单片机对 siemens4442卡的底层驱动程序 把.rar改成.C即可-51 Singlechip siemens4442 card on the bottom of the driver. Rar changed. C can be

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

数字钟是一种用数字电路技术实现时、分、秒计时的装置，与机械式时钟相比具有更高的准确性和直观性，且无机械装置，具有更更长的使用寿命，因此得到了广泛的使用。数字钟从原理上讲是一种典型的数字电路，其中包括了组合逻辑电路和时序电路。目前，数字钟的功能越来越强，并且有多种专门的大规模集成电路可供选择-Digital Clock is a digital circuit technology with the hours, minutes, seconds, timing devices, as compared with the mechanical clock has a higher accuracy and intuitive, and no mechanical devices, with more longer life, so be a wide range of use. Digital clock from the principle of speaking, is a typical digital circuits, including combinational logic circuits and sequential circuits. At present, the digital clock and more powerful, and there are a variety of specialized large scale integrated circuits to choose from

此为基于PT2272的无线接受程序，经过实验,可行.

32位arm9微处理器S3C2410的lcd彩色液晶屏测试源代码-32-bit ARM9 microprocessor S3C2410 the lcd color LCD screen test source code