利用单片机实现的控制电梯系统，参考2004年湖北省大学生电子设计竞赛原题设计。

DDS9851的PDF大家有需要就下载 还有中文文档-U.S. DDS9851 the PDF there is a need to download the document there are Chinese

用普单片机实现低成本高精度A_D与D_A转换关键词 单片机 　A/D转换 　D/A转换 　PWM(脉冲宽度调制)比较器-Pu realize low-cost single-chip microcomputer with high-precision conversion A_D with D_A Key words Single-chip A/D converter D/A converter PWM (pulse width modulation) comparator

LCD12864+51单片机 C语言例程 (此为在主程序，LCD相关函数声明 接口定义位于头文件中)-LCD12864+ 51 Singlechip C language routine (this is in the main program, LCD-related function declaration at the first interface definition file)

24C01读写程序，称C51源代码形式：write bit（unsigned char ch）@2001/03/23函数称明：内部函数，私人用户不直接调用。

c51写的，数码管显示以及键盘接口专用控制芯片芯片BC7281与MCU串行通信的解决方案的实例程序。在c51里的移植基本不需要改动。-decoder, a digital control display and keyboard interface dedicated controller chips BC7281 and MCU chip serial communications solutions examples of procedures. C51 Lane in the transplant is not needed changes.

这个程序可以在LCD显示器上显示字符串，并且里面的光标都经过处理。可以作为玩具小车显示-This procedure can be displayed in the LCD display string, and have been inside the cursor handle. Can serve as a toy car display

C51 TIMER 0的使用 Timer_0_mode_1_timer_gate_hard-C51 TIMER 0 use Timer_0_mode_1_timer_gate_hard

本文件介绍了MSC51与AVR单片机的区别，同时，对它们的区别的使用代码进行了说明-This document presents the AVR microcontroller with MSC51 distinction, at the same time, the difference between their use of the code described

一款关于ISD4004语音芯片的开发实例，采用C语言编写，具有完整的 SPI 总线操作函数，一定会为你做ISD4000系列芯片的开发带来很大帮助-ISD4004 voice chip on a development instance, using C language, with a complete function of SPI bus operations, will definitely help you make ISD4000 series chips have a great help

16*64位点阵点 阵显示汉字程串口输出字符数据，P2口输出行扫描信号,P0_0输出595锁存信号-16* 64 dot matrix display Chinese characters lattice-serial output character data, P2 mouth output signal scanning, P0_0 595 latches the output signal