在C51下编写的频率计函数，可以对测得输入信号的频率

这是一个ＬＣＤ　的显示驱动程序，他能够实现显示两行字符的功能-This is a LCD display driver, he was able to show two lines of characters realize the function of

本程序是环境监测程序，用于环境的监测，无线发送-she

蜂鸣器响 改变蜂鸣器的频率，通过改变延时时间 蜂鸣器的时间要是是靠延时来完成的-Buzzer buzzer ring to change the frequency by changing the delay time if the buzzer is the time to be completed by the time delay

本书以采用89C52为核心的仿真实验板为主线，充分发挥该实验板不需仿真器就可在线调试和在线下载、成本低廉的特点，采取边练边学的指导思想，合理、有机地将单片机的原... -Book to the use of 89C52 as the core simulation board the main line, give full play to the board without emulator can be downloaded online debugging and on-line, low cost, take the side of practice to learn the guiding ideology, reasonable, will be organically the original single-chip ...

89C51 单片机I_O 口模拟串行通信的实现方法--Simulate I_O serial port communication in 89C51 SCM.

128的串口调试程序，使用的是查询发送和查询接收 很好用的一个驱动-128 serial debugger, using a query to send and receive queries with a very good driver

51单片机与PC机的串行通信中的程序原代码。-51 microcontroller and PC serial communication of program source code.

用C51开发的单片机多机通讯程序，其中包括双口RAM的读写程序。 这个程序调试通过，应用在我开发的系统中，效果很好。-C51 Microcontroller with the development of multi-machine communication procedures, including dual-port RAM reading and writing process. Debugging through this process, the application in my development system, good results.

电磁兼容技术培训（杨济深教授讲课稿）,这可是权威之作。是学习电磁兼容技术的工程师必学宝典。- Electromagnetic compatibility technology training (Professor Yang Jishen teaches manuscript), this but work authority. Is engineer which studies the electromagnetic compatibility technology must study the precious book.

在51单片机系统中实现CRC校验的方法，以及CRC校验的原理-51 single-chip microcomputer system in the realization of the CRC checksum, as well as the principles of CRC Checksum