该程序是用C编写的，须下载到凌阳61单片机 有万年历功能

此程序为单片机和PC机RS232传输时候的C51源码!实现单片机中断程序发送,接受功能.-procedure for a microcontroller and PC RS232 transmission when the C51 source! MCU interrupted proceedings to send and receive functions.

LED数码管的简单控制程序，7彩变化。有按键可以选择模式。-LED digital tube simple control procedures, 7 color change. Button has the option mode.

I2C串行总线标准驱动程序(C51)-万能程序 -I2C serial bus driver (C51)- omnipotent procedures

基于AD89S52的AD9851控制驱动源程序。-Based on the AD9851 control AD89S52 drive source.

使用51单片机用算法的方式来产生SPWM的程序-Use 51 MCU way to use the algorithm to generate SPWM program

在单片机上实现OBD协议的调制和解调,应用于车载OBD检测设备.-In SCM to achieve agreement OBD modulation and demodulation, used car OBD testing equipment.

飞利浦的80C552串口通信代码，可通过PC机完成对单片机的控制，并向上位机返回数据。-80C552 bunches of communication code of Philip, can finish the control on one-chip computer through the PC , and return to the data in the upward location machine.

让您通过VB介面，简易地测试8051上面的40Hz的RF通讯。

读表法显示正弦波，附图。但只能输出定频，需要经过改动才能输出可调的 -Reading table shows sine wave, the attached map. But only the output frequency, changes need to go through in order to output adjustable

基于C51的DS1820测温的C语言源程序，有详细注释-c51 program about tempreture data acquisiton