STATCOM_Base_on_PIcontrol

基于PDIUSBD12的USBMouse源程序和电路图(Based on source and schematics of PDIUSBD12 USBMouse)

本代码主要是关于微机继电保护的三相短路、单相短路的距离保护，非常的珍贵，把它上传上面工分享(This code is mainly about the microcomputer relay protection of three phase short circuit, the distance of the single phase short circuit protection, is very precious, share it to upload the above work)

成熟伺服系统的速度观测和编码器自动调零程序(Speed observation of mature servo system and automatic zero setting program)

说明：  returns the device state

步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)

上位机图形显示程序,可用于8051单片机的开发,通信及控制(PC graphics procedures can be used for the 8051 microcontroller development, communication and control)

energy emwin驱动程序，可驱动彩屏及相关LCD控制器(energy emwin)

说明：  基于IAR开发环境，野火PIT 配置文件，包含C和H文件(Based on IAR development environment, wildfire PIT configuration file, including C and H files)

实现对气体流量表的基于音速喷嘴的自动检定(testing for the gas flow meters based on stangdard acoustic nozzles)

该程序实现了对STC单片机的EEPROM的操作。每隔0.5秒钟，单片机对EEPROM进行一次 读、擦除和写操作，并把数值显示到数码管上。 确认试验是否成功：电源上电后，数码管的值在递增，观察值。关闭电源，待几秒后上电， 数码管显示的值会从断电钱的那个值开始显示(The program realized STC microcontroller EEPROM operation. Every 0.5 seconds, the microcontroller on the EEPROM once read, erase and write operations, and the value displayed on the digital tube. Confirmatory test is successful: power-up, the digital value in increments observations. Turn the power off after a few seconds until the power, digital display of the value of money off that value from the beginning to show)