51单片机简单操作系统源码，其他地方下的，可能拿来分析分析，学习学习...

c51串口通信程序-C51 Serial Communication Program

单片机最小系统，两位LED数码管由串口输出接两个164驱动，Lout,Rout为左右声道输出，SET， ALT0， ALT1为三个按键，也可自己在开始的I/O定义改成你想用的I/O口；12M晶振，若用89C51则只可装下约14首歌曲，用89C52则可装下近40曲-The smallest single-chip system, the two LED digital tube by the serial output driver 164 then two, Lout, Rout output for the left and right channels, SET, ALT0, ALT1 three buttons can also be their own at the beginning of the I/O definition change you want to use the I/O port 12M crystal, if one uses a 89C51 only loaded about 14 songs can be loaded with 89C52 under near 40

51单片机的模拟I2C总线接口函数，附带完整注释。-51 microcontroller simulation I2C bus interface function, fringe integrity Notes.

单片机8个LED灯实现左移右移效果演示.-SCM eight LED lights to achieve the left right side effects demo.

基于MCS-51的温度测量程序 温度程序-MCS-51 based on the temperature measurement procedure

著名的CS5463抄表模块，带无功计算。-CS5463 well-known meter reading module, with the calculation of reactive power.

用C语言读写CF卡程序 非常不错的东西-Used C language literacy CF card procedures very good things

ADC0809数据采集系统 ADC0809数据采集系统-ADC0809

液晶屏显示程序，主要对各按键处理做了很好的处理，可随意改动各按键，通讯采用MODBUS ASCII 可以控制台达变频器的起停及速度控制-LCD display program, the main keys to deal with a very good, may be arbitrarily changed the keys, communications using MODBUS ASCII converter can console cease and the speed control

本实验实现PS/2接口与RS-232接口的数据传输， PS/2键盘上按下按键，可以通过RS-232自动传送到主机的串口调试终端上（sscom32.exe）； 并在数据接收区显示接收到的字符。 串口调试终端的设置：波特率115200，一个停止位，无校验位。 -Realize this experiment, PS/2 interface with RS-232 data interface, PS/2 keyboard to press the button, through RS-232 automatic transmission to the host serial debug terminal (sscom32.exe) and data receiving display received characters. Serial debug terminal settings: 115200 baud rate, one stop bit, no parity bit.