freescale

spi接口的ad芯片ads8332驱动代码，主芯片为c8051f3xx系列，更改IO口配置即可使用，包含AD数字滤波部分。(spi interface ad chip ads8332 driver code, the main chip for c8051f3xx series, change IO port configuration can be used, including AD digital filter section.)

有源低通滤波器仿真电路图，是二阶低通滤波器的仿真原理图(Active low-pass filter circuit simulation, is the second-order low-pass filter simulation schematic)

digital signal process,draw signal line and save the line history and add some filter instruction.

本装置采用单相桥式DC-AC逆变电路结构，以TI公司的浮点数字信号控制器TMS320F28335 DSP为控制电路核心，采用规则采样法和DSP片内ePWM模块功能实现SPWM波。最大功率点跟踪（MPPT）采用了恒压跟踪法（CVT法）来实现，并用软件锁相环进行系统的同频、同相控制，控制灵活简单。采用DSP片内12位A/D对各模拟信号进行采集检测，简化了系统设计和成本。本装置具有良好的数字显示功能，采用CPLD自行设计驱动的4.3’’彩色液晶TFT LCD非常直观地完成了输出信号波形、频谱特性的在线实时显示，以及输入电压、电流、功率，输出电压、电流、功率，效率，频率，相位差，失真度参数的正确显示。本装置具有开机自检、输入电压欠压及输出过流保护，在过流、欠压故障排除后能自动恢复。(This device single-phase bridge type DC-AC inverter circuit structure, TI company of floating in digital signal controller TMS320F28335 DSP as the control circuit, the core rules sampling method and DSP piece ePWM module function realization within SPWM wave. The maximum power point tracking (MPPT) used the constant pressure tracking method (CVT method) to realize the software, and phase lock loop to carry on the system the same frequency, phase control, control with flexible simple. By using DSP piece of 12 within the A/D of each simulation signal acquisition detection, simplified system design and cost. This device has a good digital display function, use CPLD to design the driver 4.3 " TFT LCD color LCD very intuitive to finish the output signal waveform and spectrum characteristics of online real-time display, and the input voltage, current, power, the output voltage, current, power, efficiency, frequency, phase difference, the distortion degree of parameters display properly. Thi)

PIN DIAGRAM FOR TL 494. IT TELLS CLEARLY HOW TO CONNECT TL 494.

2.4寸彩屏实时显示当前温度，基于STC52单片机(2.4-inch color display the current temperature, microcontroller based STC52)

Analysis of Oscillator Phase-Noise Effects on Self-Interference Cancellation in Full-Duplex OFDM Radio Transceivers

说明：  基于stm32f103的mqtt完整通信的例子，支持TLS加密通信(An example of mqtt complete communication based on STM32F103 supports TLS encrypted communication)

说明：  speed control of induction motor using matrix converter cccf(speed control of induction motor using matrix converter dcd)