1. 最小系统

这是一个7279芯片的键盘检测程序，可以供初学者借鉴(This is a 7279 chip, keyboard testing procedures, you can learn from for beginners)

NASA - [Aerospace History 16] - Touchdown, The Development of Propulsion Controlled Aircraft at NASA Dryden (pdf)

蓝牙LCD显示部分的原代码，软件需CSR的bluelab进行编译，再加上它的开发板(Bluetooth LCD display part of the original code, the software required CSR bluelab compile, coupled with its development board)

本程序只是简单实现多用户管理 模拟win2000中的用户,用户组管理 对不同用户动态生成不同的菜单(The procedure is simple multi-user management simulation win2000 user, user group management for different users to dynamically generate different menus)

说明：  音量控制芯片，六通道音量控制芯片，可单独和全控。(The volume control chip)

单片机SCM处理信号的自动聚焦系统，利用单片机SCMM控制光学镜头，实现自动聚焦功能， (MCU SCM processing a signal automatic focusing system, the use of the microcontroller the SCMM to control the optical lens, to achieve auto-focus function,)

按键控制STM32单片机输出PWN波占空比和频率可调(Key control STM32 MCU output PWN wave duty cycle and frequency adjustable)

16位串行AD芯片ADS8341的51单片机程序(16-Bit Serial AD-chip ADS8341 51 MCU program)

一线制通讯 communication(communications line communication system)

说明：  无刷电机驱动器源代码。基于无传感器方案的无刷电机启动器。核心是换向角度检测：即电机反电势波形数据处理，经过衰减滤波，取出过零相位。应为低速反电势波形dB过小，波形扰动太大，本程序还不能稳定处理10Hz以下的换向计算。(Brushless motor driver source code. Program based on the sensorless brushless motor starter. Is the core to the point of view for detection: the motor back-EMF waveform data processing, through the attenuation filter, remove the zero-crossing phase. For low-speed back-EMF waveform dB is too small, waveform disturbance too, this procedure can not be stabilized to 10Hz for the following calculation.)