keyboard

该夜用照明灯系统采用AT89S52单片机为核心，利用单片机的端口分别控制LCD1602标准时钟系统、可控硅和电铃，达到智能操控照明系统(The night with the lighting system using AT89S52 microcontroller as the core, using SCM port control the LCD1602 standard clock system, SCR and bells, to the intelligent control lighting system)

MSP430F261x基本模块实验——汇编代码(MSP430F261x basic modules experiment- assembly code)

说明：  VB串口通讯实例 高精度电压表(24bit) VB源程序(VB serial communication example high precision voltage meter (24bit) VB source code)

基于51单片机的PT2314音频功放程序，可实现MIC和音频输入切换及音量音调控制，并用5110显示(Based on 51 single-chip audio amplifier PT2314 program can achieve MIC and audio input switching and volume tone control and display with 5110)

DS1302+89c51的例程代码，实测可用(DS1302 STM32)

一个以太网帧解析程序，实现以下功能：解析已封装好的Ethernet V2.0帧封装文件（见附件），判断有多少个帧，每个帧的所有字段内容，检测CRC校验是否正确(An Ethernet frame analysis program, the following functions: parsing the encapsulated Ethernet V2.0 frame encapsulation (see annex), to determine the number of frames, each frame contents all fields to detect CRC checksum is correct)

本程序是用51单片机的PS2鼠标驱动程序(This procedure is used 51 single PS2 mouse driver)

设计的电机驱动控制系统的主要功能有①控制电机的正转、反转；②为电机设计控制速度，有5m/s、10m/s、15m/s三个等级；③给电机设定转动的位移，让电机按照设定的位移移动；④1602液晶上显示电机的位移和速度；⑤利用4*4键盘数字输入控制电机的速度、按键C和D控制正反转、按键B控制三个档位的速度。(Using SCM software and hardware systems to achieve precision stage displacement, velocity through three or four phase stepper motors (motors meet the acceleration and deceleration characteristics), control the direction, location. Completion of the control circuit board hardware, including CPU, power amplifier, buttons, LED display. Software can be implemented in C.)

MultiThread DB - ADO CMTDaoDatabase CMTDaoRecordset

交流电动机的矢量控制（Transvector Contrl）理论，从理论上解决了交流电动机转矩的高性能控制问题。其基本思想是在普通的三相交流电动机上设法模拟直流电动机转矩控制的规律，在磁场定向坐标上，将电流矢量分解成产生磁通的励磁电流分量 和产生转矩的转矩电流分量 ，并使两分量互相垂直，彼此独立，然后分别进行调节。这样，交流电动机的转矩控制，从原理和特性上就与直流电动机相似了。因此，矢量控制的关键仍是对电流矢量的幅值和空间位置的控制。(AC motor vector control (Transvector Contrl) theory, control theory to solve the problem of high-performance AC motor torque. The basic idea is to try to simulate the DC motor torque control law in the ordinary three-phase AC electric motor in field-oriented coordinates, the current vector decomposed to produce the excitation current component of the magnetic flux generating a torque current component and torque, and two components perpendicular to each other, independently of each other, and then were adjusted. Thus, AC motor torque control, the principle and characteristics of the DC motor on and similar. Therefore, the key vector control is still the amplitude and spatial position of the current vector control.)