生日快乐音乐播放，汇编编写的扬声器，不是蜂鸣器

介绍一种高分辨率的双路A/D转换器AD7711，能满足双路A/D采样要求。内容包括AD7711的特点， 内部寄存器结构和外部接口，并详细阐述了数据采集系统中AD7711与单片机AT89S8252的接口技术，包 括硬件接口电路和软件程序设计及其注意事项。 -Introduce a two-way high-resolution A/D converter AD7711, can satisfy the dual A/D sampling requirements. Include the characteristics of AD7711, the internal register structure and the external interface, and detailed data acquisition system with the AD7711 single-chip AT89S8252 interface technologies, including hardware interface circuit and software design and its attention to matters of procedure.

keil c51使用手册中文讲解-Keil decoder manual on Chinese

使用8051驱动2.0英寸TFT屏幕（S6D0118 IC）

C51 LCD1602 4线并口通信源程序-C51 LCD1602 4 line source parallel communication

6502系列单片机功能！里面每个函数都有详细的说明！

这是一个智能钟的程序..我已编译过的..可以用有时分秒和定时等功能 -This is a smart 10-minute procedure .. I have compiled the .. can sometimes accurate and regular features

电子密码锁，可以自己设置密码，C语言编写的-Electronic code lock, you can set up their own password, C language

单片机做的贪食蛇游戏，proteus仿真通过，学习的好资料-Single-chip do贪食蛇game, proteus simulation adoption, learn good information ...

LPC214x开发SD卡详细资料，包含源程序-LPC214x development SD card detailed information, including source

一个数据库引擎,可以创建和读写DBF格式的数据库文件-A database engine, you can create and read and write DBF database file format