一个详细的89C52单片机原理的PDF文件

16*16点阵汉字显示，非常简单，应该是简明-16* 16 dot matrix Chinese character display

这是一个系列的单片机实验例子，有流水灯、数码管显示、行列式键盘、串口通信、系统功能等内容，是单片机初学者的最佳学习内容

单片机的程序，欢迎探讨-Microcomputer Program, welcomed the study

非常好的介绍MCS-51单片机以及汇编指令编程的文挡！可以打好扎实的基础。-Very good description as well as the MCS-51 microcontroller programming text block assembly instructions! You can lay a solid foundation.

HT1621 是一款128 个位元的LCD 控制器件，内部RAM 直接对应LCD 的显示单元。相应的软件使它适用于包括LCD 模块和显示子系统在内的多功能应用。主控制器与HT1621接口只需4 到5 根线。内置的省电模式极大的降低了功耗。本文介绍HT48R05A-1 单片机来控制HT1621，并介绍如何turn ON 及turn OFF LCD 所有位元。-HT1621 is a 128-bit LCD control device, the internal RAM directly correspond to the LCD display unit. So that it applies to the appropriate software, including LCD modules and display sub-systems, including multi-purpose applications. Master controller and the HT1621 interface only 4-5 lines. Built-in power-saving mode greatly reduce power consumption. This article describes the HT48R05A-1 microcomputer to control the HT1621, and describes how to turn ON and turn OFF LCD all the bits.

摩托罗拉手机A890广告演示，一个简单的演示动画，适合新手初学者入门学习。-Motorola A890 mobile phone ads demonstration, a simple demonstration of animation, suitable for novice beginners learning portal.

用AVR 音乐合成： 1.音乐数据存放于芯片的flash存贮器中2.PA口显示不同的音阶变化。 3.音乐数据的低四位选择音调频率，高四位*5后，为音调持续时间。-Using AVR Music Synthesis: 1. The music data stored in flash memory chips in the mouth 2.PA show different changes in scale. 3. The music data to choose the four tones of low frequency, high 4* 5, in order to tone duration.

使用89S52为核心做的USB键盘,注意修改了一下windows设备描述符以及端点处理等就行了。用了一个4*4的小键盘,有0-9十个数字键, Num Lock键,Caps Lock键,Shift键,Ctrl键,Alt键,回车键等。 最多可以有三个键同时按下，如果相交的话，最多只能两个键按下-89S52 use as the core of the USB keyboard to do, pay attention to modify the look and the windows device descriptor, such as treatment endpoint on the list. Used a 4* 4 small keyboard, has the number keys 0-9 10, Num Lock keys, Caps Lock key, Shift key, Ctrl key, Alt key, enter key and so on. Can have up to three keys pressed at the same time, if the intersection, then a maximum of only two keys pressed

单片机外部中断 串口中断 定时中断 单片机外部中断 串口中断 定时中断 -micro conctol micro conctol micro conctol micro conctol

电动车上面的控制器原理图，NEC主控芯片，现在最流行的方案，提供给大家-Electric vehicle controller schematic diagram above, NEC host chip, is now the most popular programs available to everyone