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控制系统，自动化专业经典教材《非线性系统》英文第三版(Control systems, automation classic textbook " nonlinear systems" English Third Edition)

89c51时钟，通过液晶屏显示 还可以通过按键设置时间(89C51 clock, through LCD screen display, you can also set time by key.)

测试STM8S103F3的IO模拟I2C控制wm音频codec。调试通过(Testing STM8S103F3 to MockI2C control wm audio codec )

说明：  OLED STM32驱动，8080并口方式|SPI方式 默认8080并口方式(OLED STM32 Drive,8080 mode and SPI mode, default 8080 mode)

This header, excluding the ifdef __KERNEL__ part, is BSD licensed so anyone can use the definitions to implement compatible drivers servers.

采用stm32f4核心板，实现AD采集，效果很理想，可测量流量，液位(Achieving Flow Acquisition)

利用GPIO控制无源蜂鸣器发声，播放音乐。使用SysTick延时，使用位带操作寻址IO口引脚。(GPIO is used to control the voice of passive buzzer and play music. Use SysTick delay, use bit band operation to address IO pins.)

lpc2148芯片usb通讯c程序，iar开发环境打开c程序(lpc2148 communications chip usb c procedures, open development environment iar c procedures)

51单片机的数字显示代码，开发板上的例程，大家看看。(51 Singlechip figures show the code, development board routines, take a look at everyone.)

矩阵键盘密码锁+简易计算器，C52的单片机平台，C语言开发，适用于初学学习。(Matrix keyboard lock+ simple calculator, C52 MCU platform, C language development, suitable for beginners to learn.)