用单片机产生Pwm来控制电机的硬件和软件设计，欢迎下载！

H6152读Mifare射频卡通信.zip-H6152 Reading Mifare RF card communications. Zip

89C51单片机精确定时详解-89C51 Elaborates on precision timing

利用SMALL RTOS51做的一个项目，全部齐，用KEIL 7.07可马上编译-use SMALL RTOS51 do a project, all of chai, can be used immediately KEIL compiler 7.07

C51源程序库，一些例，学51单片机的基础用-C51 source database, a number of cases, the basis of study with 51 single-chip microcomputer

61单片机模拟8080总线时序的程序，很多接口芯片的时序就是这个-61 Microcontroller Bus Timing simulation of 8080 programs, many interface chip timing is this

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1-Features: 1, as under the 8255-bit machine data collection and communications sent through this data, 2, collected data for the BCD, first converted into binary, and then converted to deal with BCD 3, communication using methods 3, multi-machine communication, PC-fat address TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1

工程制图是一个非常重要的东东，需要每一个人沉下心来仔细学习-tom is a boy

AVR单片机的源代码，VHDL代码。实现了AVR单片机的功能。-AVR microcontroller source code, VHDL code. AVR microcontroller implements the function.

一份关于SD卡读写的资料，需要的就拿吧。-A report on the SD card to read and write data, need to just take it.

PCB最强的设计工具ALLEGRO辅助工具SKILL源代码,很多功能应有仅有，可以直接安装使用-PCB design tools ALLEGRO strongest aids SKILL source code, there should be a lot of features only, can be directly installed on the use of