用AT89C2051实现程序A/D转换程序，用PWM模拟输出。

EM推出的可读写卡片EM4469，带有512bit存储空间，程序基于AVR系列单片机，可对EM4469进行读定操作-EM introduced the card can read and write EM4469, with 512bit memory space, the program series based on the AVR microcontroller, can be read on the EM4469 is scheduled to operate

msp430F149单片机c语言程序示例-c language program MSP430F149 single-chip sample

利用串行驱动数码显示每位从0显示到F，到灭循环显示，要求1秒更新一次。-drive using serial digital display shows each from 0 to F, to eliminate cycle, a request updated seconds.

4*4矩阵键盘（行扫描法） （S51环境）-4* 4 matrix keyboard (line scanning) (S51 environment)

LPC2103,GPIO端口编译程序，很好用，IAR环境下-LPC2103, GPIO port compiler, very good use, IAR environment

日历时钟DS12887控制实验 实验步骤 （1）连CZ1→CZ7，/IRQ(MC3)→P3.2。 （2）运行程序CLOCK.ASM，主机提示"SE――"等待键输入，①如按F0/EX，则读取显示当前已设置的日历钟。②如按数字键、再按SCAL键，则重新设置日历，例如设置日历为2002年02月22日，只需输入02 02 22即可，20为固定设置，不需输入。-Calendar Clock DS12887 control experiment experimental steps (1) even CZ1 → CZ7,/IRQ (MC3) → P3.2. (2) run the program CLOCK.ASM, host prompt

用于步进电机的驱动.可以通过输出信号来控制步进电机的转速和角度控制.-For stepper motor driver. Can output signals to control the stepper motor speed and angle control.

USBKeyBoard STM32 USB 使用-USBKeyBoard STM32 USB Use

介绍zlg7290的pdf，介绍得很详细，还有程序实例。-Introduction zlg7290 the pdf, very detailed introduction, there are instances.

LPC2119 CAN中断及示范-LPC2119 CAN disruption and demonstrations