GPIO

说明：  本程序用作pid控制，不过基于AVR硬件乘除法，移植性不高，本人是作者。(the procedures for pid control, but based on the hardware AVR calculation method, transplantation is not high, is the author.)

51单片机的4x4键盘扫描c语言程序，大家看看，(51 single-chip 4x4 keypad scan, we look)

stm32f103rct6控制两路编码电机pid调速(Stm32f103rct6 control of two way coded motor PID speed regulation)

一个关于双机之间的通讯联系：包括串口设置。地址编码，按键设置等。另付proteus仿真原理图，可以动态观察。对学习多机通讯很有帮组(One on communication links between the two-machine: including the serial port settings. Address code, key settings. Extra proteus simulation diagram, can be dynamically observed. Multi-machine communication is useful for learning to help groups)

MENTOR GRAPHICS KEYGEN

Fault Classification in PSCAD

msp430应用笔记 包含msp430手册，以及各项项目开发笔记 PDF 学430必备(MSP430 application notes include MSP430 manual and PDF science 430 necessary notes for various project development)

Realtek最新的5口傻瓜交换机芯片RTL8305NB做的3口百兆交换机原理图、PCB图，以此为参考可以做5口交换机(Schematic and PCB Documents of 3 Ports switch.The main chip is RTL8305NB,which is the new 5 ports switch chip of realtek Co.Ltd.)

说明：  关于stm32的高级应用部分代码历程，stm32的代码。(About STM32 advanced application part of the code process.)

基于STM32F4的示波器的源代码，内部含有ucos-ii操作系统。(STM32F4 based oscilloscope source code contains an internal ucos-ii operating system.)