MAX6675

在freertos操作系统下采用modbus协议进行rs485通讯(485 communication using Modbus protocol under FreeRTOS operating system)

说明：  基于STM32F1x的ADC电压检测代码(ADC Voltage Detection Code Based on STM32F1x)

简单的摇摇棒程序，基于c51环境下开发的。虽然简单，但很实用。刚入门的。(Simply shook his stick procedures, c51-based development environment. Although simple, but very practical. Just getting started.)

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.)

滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)

鼎科驱动板RTD2483 HDMI液晶屏程序(Dinke RTD2483 series HDMI LCD firmware)

MHT(多假设跟踪)是一种基于多个扫描周期量测, 进行数据互联的技术, 理论上是解决数 据关联的最优方法。文中重点阐述多假设跟踪算法中数据聚簇、假设生成及假设概率计算、假设约简与 剪枝等环节。从工程角度出发, 采用K􀀁 best最优假设和N􀀁 scan 回溯剪枝以提高算法效率和实用(MHT (multiple hypothesis tracking) is a kind of multiple scan cycle measurement based, data interconnection technology, theory is to solve the number According to the optimal method of association. This paper focuses on multiple hypothesis tracking algorithm in data clustering, hypothesis generation and hypothesis probability calculation, assuming that reduction and The pruning process. From the engineering point of view, using K 􀀁 best optimal hypothesis and N 􀀁 scan backtracking pruning algorithm to improve the efficiency)

说明：  风洞悬浮球程序 本程序来源于正点原子例程 芯片为STM32F103ZET6 超声波测距模块SR04 ILI9341主控的320*240液晶屏 程序使用超声波测距模块SR04测量透明亚克力管子内风洞悬浮乒乓球的位置， 输出给ILI9341主控的320*240液晶屏上，在屏幕上画出球的位置曲线。 可通过串口1输入修改PID参数以及悬浮球目标位置(Translate by GOOGLE from Chinese Wind tunnel suspension ball program This program is derived from the punctual atomic routine The chip is STM32F103ZET6 Ultrasonic ranging module SR04 320 * 240 LCD screen controlled by ILI9341 The program uses the ultrasonic ranging module SR04 to measure the position of suspended table tennis in a wind tunnel in a transparent acrylic tube. Output the position to the LCD screen with 320 * 240 resolution, and draw the position curve of the ball on the screen. Can modify PID parameters and hoverball target position through serial port 1 input)

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)

实现 w5500 stm32 下的 udp组播(achieve; realize; bring about; come true; actualize)