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这是一个51单片机与PC的通信系统：利用3*4小键盘输入0~9的一串数字（不大于5），通过8051自带的串口发送给PC并显示在系统的6位LED上；单片机接收上位机的输入并显示在LED上。8051串行口经232电平转换后，与PC机串行口相连。PC机使用串口调试应用程序V2.2.exe，实现上位机与下位机的通讯。-This is a 51 microcontroller and PC communication system : use 3* 4 0 small keyboard input of a bunch of nine-figure (no more than 5), by 8051, bringing their serial sent to the PC and display system in the six LED; SCM receiving PC input and displayed on the LED on. 8,051 by 232 serial port-level conversion, and the PC serial port connected. PC using serial debugging applications V2.2.exe achieve PC and the next crew communications.

c51单片机实现GPS数据接受并通过数码管显示时间-c51 achieve single-chip GPS data receive and display digital time

介绍了用RS-232串口进行开发的过程，对于刚涉及串口编程的开发人员有一定帮助-Introduction by RS-232 serial port to carry out development process, for serial programming just related to the development of staff has a certain extent, help

Giao trinh CCAN tieng viet

AT89C51中文资料。介绍了AT89C51 8位单片机的内部结构和各个存储器，时序等。-AT89C51 Chinese data. Introduction of the AT89C51 8-bit MCU s internal structure and the various memory, timing and so on.

模拟温度监控，并保存为结果文件，超过限定温度，系统自动报警-Analog temperature monitoring, and save it as the outcome document, over limited temperature, automatic alarm system

串行写控制字 设置串口工作方式 将控制字写入AD9850-Serial control words written work will be set up serial control words written into the AD9850

这是一个关于PS2的C语言程序，利用单片机进行调试，非常好用-This is a C-language program on the PS2 using the microcontroller for debugging, very easy to use

使用FREESCALE单片机内部的EEPROM的程序，经本人试过，完全没有问题，不过使用之前，要先修改内存映射。-Using Freescale

完全可以用的交通灯单片机控制程序。5秒自动提醒功能，并设有紧急通道功能。-Can be used in traffic lights Singlechip control procedures. Automatically 5 seconds to remind function, and with emergency access features.