在AVR上实现USB的功能，是模拟出的USB

包括读写器源代码，专为研究RFID技术学习之用-Philips makes no warranty, expressed, implied or statutory, including but * not limited to any implied warranty of merchantability or fitness for any *particular purpose, or that the use will not infringe any third party patent,* copyright or trademark. Philips must not be liable for any loss or damage* arising from its use.

学习单片机最有用的恐怕是编程器和仿真机,一台商品化的编程器至少要几百元,仿真机价格更高,往往让初学者难以选择。这里介绍的一款国外电子网站推出的廉价51编程器，能够读写最常用的12种51单片机，自己动手装配一台，既能锻炼自己的动手能力,又能廉价地装备一台多用编程器，无论是学习单片机或业余时间搞开发，都是一个非常好的选择。笔者按照资料自制了一台，十分好用，不敢独享。特编译了全部制作资料介绍给大家。这个编程器硬件使用标准的TTL系列器件而没有使用特殊元件。它连接在计算机的并行端口，对PC的并口没有特殊要求，所以配置很低的计算机也能用这个编程器。Atmel Flash 系列单片机是当前最流行的单片机，易于擦写，不象OTP芯片容易造成浪费。特别是89系列单片机与大家熟悉的INTEL51系列单片机完全兼容，这个编程器支持的单片机主要是Atmel flash系列。-Single-chip learning is probably the most useful programming and simulation machine, a programmer commercialization of at least several hundred dollars, simulation machine prices higher, so that beginners are often difficult to choose. Here s a foreign site to launch low-cost e-51 programmer can read and write 12 types of most commonly used single-chip microcomputer 51, a do-it-yourself assembly, can exercise their practical ability, but also inexpensive to equip a multi-purpose programmer, whether it is free time to study or engage in the development of single-chip are a very good option. The author made in acc

非常好用的大容量EEPROM存储器，带2线或3线SPI接口，带128字节高速缓存。-very handy, large capacity EEPROM memory, with two lines or three-wire SPI interface, with 128 byte cache.

这是美国ti公司的高级单片机的msp430F449的设计参考代码 注释比较详尽，是学习的好帮手-This is America ti senior microcontroller msp430F449 reference code for the design of more detailed comments, is a good helper to learn

用C语言通过MCS-51 的并口控制打印 用于 沈阳新荣达电子 微型打印机-Using C language through the MCS-51 for the parallel port to control print Shenyang New??electronic micro-printer

16x16单片机仿真LED点阵有卷动和移动两种闪法随便用-16x16 single-chip simulation scrolling LED dot-matrix There are two types of flash method and mobile casual use

学习pic单片机的很好的实例，汇编语言，有很多典型的实例。-learning pic SCM good example, the compilation of language, a lot of typical examples.

使用89S52芯片来驱动1602液晶显示,用KEILC51编译,可靠,并实践过.-err

MCS51单片机C语言实现画圆弧坐标的源程序-MCS51 C Language painting arc coordinates of the source

这是一个控制两个步进电机的程序，可以作为小车的驱动电机程序，实现正、反转、转弯等功能-This is a stepper motor control of the two procedures can be used as the drive motor vehicle procedures, implementation is, reverse, turning and other functions