按键控制步进电机

说明：  基于51单片机，芯片stc89c52,使用PCF8591ad转换器的源代码(Based on 51 MCU, chip stc89c52, using PCF8591ad converter source code)

说明：  能够实现一些单片机功能的代码,帮助初学者解决一些程序上的困难,特别是在参加有关物联网方面的一些比赛。(Can realize some SCM function of the code To help beginners solve some procedural difficulties)

相比于传统使用的电机，永磁同步电动机（PMSM）具有着比较高的工作效率、比较高的力矩惯量比、比较高的能量密度和环保节能等优越特性，所以对永磁同步电机进行控制调速方面的研究有着相当重要的意义。我们设定电机转速初始值作为给定值，然后与反馈的实际值进行比较，得到的差值输入PI控制器进行控制，得到交轴电流。同时三相绕组输出的电流经过clarke变换和park变化得到电流的实际值，分别与给定值进行比较，将比较后的值再进行park转换，得到的结果经过SVPWM技术调制之后输入到逆变器，继而可以驱动三相电机。(Used compared to traditional motor, permanent magnet synchronous motor (all-digital fuzzy) has a higher efficiency, higher moment of inertia ratio, higher energy density and superior properties such as environmental protection and energy saving, so the control of permanent magnet synchronous motor speed regulation research has important significance. We set the initial value of motor speed as the given value, and then compare it with the actual value of feedback. The difference obtained is input to PI controller for control, and the current of crossaxis is obtained. At the same time the output three-phase winding current through Clarke transformation and park changes the current actual value, compared with a given value respectively, after comparing the value of the park transformation again, the result after SVPWM modulation technology input to the inverter, which in turn can drive three-phase motor.)

秒表程序，从0-60秒，有3个按键，启动，暂停，复位 带仿真和c51源码(second count program.It has three buttons.there are start pause,reset program. proteus and c51)

以前学习DALI时所下载的一些资料。内容较全。(Learning DALI download some information. Content than the whole.)

充电桩普天协议报文标准,结合普天标准协议很好理解报文含义。十分难得。(pu tian frame)

一个集成了 BMP085 GP2Y1010 nrf2401 以及DHT11的以stm32f4 位控制核心的，天气预测程序！(An integrated BMP085 GP2Y1010 nrf2401 and DHT11 to stm32f4 bit control core, weather forecasting program!)

AVR32单片机驱动OV7620+FIFO的程序(AVR32 microcontroller drive OV7620+ FIFO procedures)

code PWM for Inverter Full BRIGTH

经典的汇编语言电梯控制程序　课程设计计好帮手　有设计报告和源代码　内容详细 (Classic assembly language elevator control program curriculum designer, a good helper design report and the source code and detailed)