SHIYANJIU

改程序适应于电力系统短路电流计算，生成节点导纳矩阵和阻抗矩阵。(Change program suitable for power system short-circuit current calculation, to generate the node admittance matrix and the impedance matrix.)

vb驱动控制器源代码就这样啦 具体自己看吧(vb drive controller source code)

Profibus-DP从站原理图， VPC3芯片配合STM32F103RBT6的系统，AD6原理图格式。(Profibus-DP slave schematics, VPC3 chip with STM32F103RBT6 system, AD6 schematic format.)

旋转LED的实现,实现用单片机控制电机转速，采用无线供电方式哦(Rotate the LED, achieving MCU control motor speed, the use of wireless power supply oh)

单片机的计时器PWM模式实例代码，希望给相关的人员带来帮助。(Single chip timer mode PWM code examples, hope to the related personnel to bring help. )

adsl及modem拨号软件 visual basic adsl modem(adsl modem and dial-up software visual basic adsl modem)

本项目是基于Cortex-M3 的地沟油快速检测装置，旨在实现“地沟油”快速，现场检测。MCU控制可编程的直接数字频率合成器（DDS）产生正弦激励信号，经过可变增益放大器（VGA）和低通滤波器（LPF）作用于食用油阻抗传感器（实验室制作）信号经过仪器放大器送入微控制器（MCU）的模数转化（ADC）通道，MCU对采集的信号通过快速傅里叶变换（DFT）处理，实现食用油阻抗与相角的检测；USB和以太网接口，可与计算机通讯，以便对采集的数据进行存储和分析。(The project is based on the Cortex-M3 waste oil rapid detection device designed to achieve " waste oil" rapid, on-site testing. MCU control programmable direct digital frequency synthesizer (DDS) generates sinusoidal excitation signal through a variable gain amplifier (VGA) and a low-pass filter (LPF) acting on the oil-impedance sensor (lab produced) to send signals through the instrumentation amplifier into the microcontroller (MCU) modulo conversion (ADC) channels, MCU signal acquisition via Fast Fourier Transform (DFT) processing, oil resistance and phase angle detection USB and Ethernet interfaces, and computer communication, in order to collect data for storage and analysis.)

通过上位机来控制LED显示的数字内容，主要是动态显示数字变化情况(Through the host computer to control the LED display digital content, mainly dynamic display of digital changes)

双步进电机综合控制 用于51单片机 (Dual stepper motor integrated control)

a source code that impliment bradth first search