51 microcontroller simulation I2C bus interface function, fringe integrity Notes...

PKE（被动无钥门禁系统，汽车车门控制）整个系统基站部分源代码。-PKE (passive-keyless-entry system, car door control) part of the whole system base station source code.

IC卡读写程序（ASM）及其测试顺序（PC端）

CPU卡读写，符合7816标准。经测试完全可以使用。-CPU card reader, in line with the 7816 standards. Been tested and can be used.

呕心沥血花了将近一个月编写的打印机程序，可用在89C51系列-born to spend nearly a month to prepare the printer procedures available in 89C51 Series

ADE7758电能计量芯片的底层驱动(for MCS51) -ADE7758 Energy Measurement of the bottom chip driver (for MCS51)

单片机 Keil＋proteus 并行口设计数字键盘实验 要求：掌握动态显示、动态扫描键盘的工作原理及硬、软件的设计、调试方法 掌握80C51接口硬件电路设计方法及软件编程方法 了解80C51外部中断的使用和编程方法 实验题目：并行口实现数字0~9、A~F、L、U、P、n总共20个键盘，将按键的结果用7段数码管显示出来。-Parallel Port numeric keypad test requirements: master the dynamic display, dynamic scan the keyboard works and the hardware and software design, debugging the means to acquire 80C51 interface hardware circuit design methods and software programming approach to understanding the 80C51 external interrupts use and programming methods Experimental subjects: parallel port for digital 0 ~ 9, A ~ F, L, U, P, n total of 20 keyboard, the result will be keys to use 7-segment digital tube display.

使用键盘上的上、下、左、右四个按键，可以分别控制led1,2,3,4, 每个LED 对应的Port 请参考“实验平台介绍”说明文档。要求按下 上面提到的四个按键中间的一个按键后，该按键对应的led 被点亮，持续1 秒钟以后led 熄 灭。-Use the keyboard on the upper and lower, left, and right buttons, can control led1, 2,3,4, each LED corresponding to the Port, please refer to " experiment on" documentation. Requirements of the four above-mentioned press the middle button of a button, the button that corresponds to being light led, continuous 1 second later led out.

AT89C2051为电动车充电器装加控制器-AT89C2051 equipment for electric vehicle charger controller add

MSP430F413的SlopAD代码，对新手非常有帮助-MSP430F413