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8052单片机和计算机串口通信的试验。已经成功演示，上位机用的是vb写的程序。-8052 single-chip serial communication and computer tests. Have successfully demonstration PC using a program written in vb.

用asm编的模拟dos中doskey命令的程序。按上下提取之前在终端输入的命令。-use asm series of the simulation were doskey dos order procedures. By extracting next before the end of the importation order.

实现高级电子琴的程序，并实现若干扩展功能。 基本功能：用8257键盘输入对应的七个音阶，通过实验箱的喇叭发出声音，并通过七段数码管显示输入音阶； 扩展功能：1、录音：记录所弹奏曲目 2、放录音：任意时刻重放最新记录曲目 3、在程序中可预设一曲目，按一键实现播放该曲目。 4、在播放录制曲目或预设曲目时，按8279键盘上任意键可以暂停播放，再按一次从暂停处继续播放。 5、程序运行时有友好的用户介面 -Realize high-level organ of the process and realize a number of extensions. Basic functions: keyboard 8257 corresponds with the seven scale, through experimental sound speaker boxes, and through Seven-Segment LED display input scale the expansion of functions: one, sound recording: Record the playing pieces 2, released recordings: any time replay music 3-to-date records, in the proceedings may be the default one track, according to realize one key to play the tracks. 4, recording tracks in the player or the default program, press any key on the keyboard 8279 can pause playback, press once again to continue from the suspended players. 5, is running friendly user interface

M序列的源代码，用于基带信号发生器的设计 -M series source code for the base-band signal generator design

This program inputs 3 numbers and sorts them from largest to smallest.

MCS51 LCD图象显示调试程序-MCS51 LCD image debugger

用8251a实现串行口异步方式双机通信，波特率1200bps，采用查询方式发送，中断方式接收。双方平时处在查询键盘、等待中断接收状态，并显示相关提示-8251a achieved using an asynchronous serial interface mode dual-machine communication, baud rate 1200bps, using queries sent, interrupt reception. Look at the two sides usually the keyboard, waiting for interrupt reception status, and display-related tips

手把手教asm,hex文件下载 S2实验板 AT89C51 12M晶振 实验2-10进制调整指令数码管从00-FF显示-手把手教asm, hex file download S2 experimental experimental crystal plate AT89C51 12M adjust instruction 2-10 hexadecimal digital tube display from 00-FF

中断程序的一个典型示例，8253，8255，8259的综合应用。-A typical example of interrupt program, 8253,8255,8259 integrated application.