utf8与gb2312的互转

智能门禁系统蓄电池充电原理图，给大家参考-Intelligent Access Control System battery charging diagram for your reference

一个用于PC直接写端口及内存的程序，少加修改就可用于pci卡的驱动，完整的工程代码，非常不错-a written directly for the PC port and the memory process, less modification can be used to drive pci cards, and complete code works very well

Interface 93CXX to PIC5X

IC卡的单片机程序proteus仿真，包括上位机，完整程序包。-Single-chip IC card proteus simulation procedures, including the host computer, complete package.

一本老师推荐的经典的VHDL覆盖基础的入门书籍，内容翔实充分-A teacher recommended the classic Introduction to VHDL-based coverage of books, fully informative

一个在mck2407板上控制无刷电机恒速运行的程序，全套的代码。-mck2407 board in a brushless motor control procedures constant speed operation, a full set of code.

linux下网络测试源代码，针对DM9-linux source code under the Network Testing

motorala JL8程序代码-motorala JL8 procedure code

采用proteus实现无刷直流电机控制的仿真分析，驱动电路由ir2101和MOSFET管组成，主控芯片选用51单片机，keil编程实现，系统为开环控制方式。

有关芯片8253/8255/8259的程序--Program about chip 8253/8255/8259.