ATMEL公司的AT89系列单片机的资料，不用我多说了吧：）

当按下开关SP1，AT89S51单片机产生“叮咚”声从P1.0端口输出到LM386，经过放大之后送入喇叭。 -When pressing the switch SP1, AT89S51 Single-chip a " ding dong" sound from the output port P1.0 to LM386, after amplification into speakers after.

本程序采用AT89C51单片机，ADC0809模数转换芯片进行模数转换，最终由数码管显示“0809**”。-This procedure using AT89C51 single-chip microcomputer, ADC0809 analog-to-digital conversion chip for analog-digital conversion, and ultimately by the digital tube displays

C51-ASM―― 单片机的原代码，没有密码。-C51-ASM- SCM original code, there is no password.

基于51系列单片机的DS18B20测量温度系统. 正在学习单片机-MCU DS18B20 temperature measurement system. SCM is learning

C51 用PCA 模拟串口，很有参考价值得源码-C51 with PCA serial analog, a valuable source

/* ex6-5.C - 绘图型 LCD 数字时钟 */-/* ex6- 5.C-Mapping LCD Digital Clock* /

关于 Cortex-M3 的中文介绍资料，包括对其结构，应用的介绍及解决方案举例。-With regard to the Chinese introduced the Cortex-M3, including its structure, applications and solutions for example the introduction.

44780字符液晶屏驱动演示程序总线方式-44,780 Character LCD Driver Bus Demonstration Program

C8051F040 UART0模式1全双工通信 uart0模式1主机程序-C8051F040 UART0 a full-duplex mode of communication uart0 a mainframe model procedures