单片机与计算机的互连，C51的Keil工程文件和PC机的C++文件。

用51汇编语言设计的DTMF发生器程序 输出到PI的每次间隔是52个指令周期 主频：6M，6M/12=0.5M,每个指令周期：2uS 即每次输出到P1的时间间隔是122uS 指令周期数：52 + 9 = 61-51 assembly language using the design process DTMF generator output to the PI for each interval is 52 instruction cycle speeds : 6M, 6M/12 = for 0.5 per instruction cycle : 2uS that each output to the P1 time interval is 122uS instruction cycle : 52 9 = 61

单片机有着体积小、功耗低、功能强、性能价格比高、易于推广应用等显著优点，在自动化装置、智能仪器仪表、过程控制、通信、家用电器等许多领域得到日益广泛的应用。在许多基于单片机的应用系统中，系统需要实现遥控功能，而红外遥控则是被采用较多的一种方法。红外遥控是通过红外管发送红外遥控编码对其设备进行控制的,不同设备的遥控发送的红外遥控编码都是不同的。由于红外无线解决了有线连接的许多不便，因而受到了家电设备厂商、电脑外围设备商、以及通信设备厂商的高度重视。 如果将遥控技术、单片机与D类音频功率放大器结合起来，那么得到的产品将是非常前沿的。本次设计就是全遥控数字音量控制的D 类功率放大器。 -Single chip has a small size, low power consumption, functionality, and high cost performance, easy to promote the use of such significant advantages, in the automation device, smart instrumentation, process control, communications, household appliances and many other fields have been increasingly widely used. In many applications based on single-chip system, the system needs to achieve the remote control function, and infrared remote control is being used more methods. Infrared remote control by infrared remote control code to send IR control of their equipment, different equipment, remote control infrared remote control code sent is different. Infrared wireless solutions because of the cable

本程序是射频芯片nRF24L01单片机C51编程的通信主程序-RF_communication

R63400 C51 test program

嵌入式开发板搭建最小系统,在嵌入式开发板上，建立内核，文件系统等等，使最小系统能够在其上运行-to build the minimun system on a board, embedded software programms.you can rely on it to impletement the basic function of an embedded system

这是本人写的一个小程序，在.net下调用vc写的d-This is a small program I wrote in. Net written dll under vc call

我同事做的一个CS5522的51单片机的驱动,用的是89S52,开发环境是KEIL C-my colleagues do a CS5522 51 MCU-driven, with the 89S52. Development environment is KEIL C

使用C8051F020和FPGA等其它相关硬件制作的一个程控滤波器，里面包括详细的源代码和设计文档，希望对大家有用。-C8051F020 and FPGA use and other related hardware produced by a program-controlled filter, which include detailed source code and design documents, in the hope that useful to everyone.

交通灯,可控制行人过马路的时间,有protues图和c语言程序-Traffic lights, pedestrian crossing the road to that time, protues map and c language program

用单片机的可变pwm的输出实现正弦波的输出。-MCU variable realize sinusoidal output pwm output.