PCB

基于90s2313的计算机并口频率计，有图纸和源代码(Parallel computers based 90s2313 frequency meter, there are drawings and source code)

剔除粗大值，利用3o准则剔除坏值，然后再判断是否还有，把残差，还有其他输出来。(Eliminate gross values)

HMC5883L测试程序，MCU为AT89S52，经测试可用(HMC5883L testing procedures, MCU for AT89S52, have been tested)

CAN通讯协议栈，完整程序包，基于STM32系统。简明易懂，是个学习的好基础包。(CAN communication protocol stack, a complete package, based STM32 systems. Easy to understand, it is a good learning base package.)

AT89S51的串口程序，可以直接编译使用，标准程序(AT89S51 serial procedures, the compiler can directly use standard procedures)

基于MSP430的LCD显示程序，是串行方式的，可在LCD上显示任意字符串。(Based on MSP430 LCD display program, it is a serial mode, can be displayed on LCD and the arbitrary string. )

说明：  SPWM调制基于面积等效，逆变器电源控制算法(SPWM Modulation Based on Area Equivalent Inverter Power Control Algorithms)

说明：  vb与plc通讯帮助解决vb与plc通讯之间的问题(vb and Communications plc)

CCS3.3的中文入门手册，介绍CCS环境搭建流程，更有多核交叉编译的调试方法。(CCS3.3 of Chinese Primer introduces CCS environment to build process, more multi-core cross-compiler debugging methods.)

说明：  数码管时钟 电子钟 时分秒 可调时分 基本功能 （1） 可由按键调整时间 （2） 可整点报时（“嘟、嘟”声） （3） 可设定时，定时时间到发出“嘟、嘟”声 显示器件可选 段式LED显示或者LCD模块显示，嘟嘟声可选用蜂鸣器。(Digital tube clock electronic clock hour minute second adjustable time basic function (1) The time can be adjusted by pressing the key (2) Time can be reported at the same time ("beep, beep") (3) It can set the timing, and the "beep, beep" sound will be emitted when the timing is up to Segment LED display or LCD module display can be selected for display device, and buzzer can be selected for beep sound.)