PID-tuning

基于STM32内部的SPI模块通过CH376芯片进行与U盘进行数据交换，通过该程序可以了解文件系统知识。(Based on STM32 internal CH376 chip SPI module to exchange data with the U disk, through the program can understand the file system knowledge.)

设p是素数，a是p的本原根，即a1,a2,a3,…,ap-1在mod p下产生1到p-1的所有值，所以对任何b属于{1,…,p-1},有唯一的i属于{1,…,p-1}使得ai mod p 等于p。称i为模p下以a为底b的离散对数。(P is a prime number based, a is the primitive root p, that is, a1, a2, a3, ..., ap-1 in the mod p under 1 to p-1 for all values, so for any b belongs to (1, ..., p-1), there are only i belong to (1, ..., p-1) makes ai mod p equivalent to p. Said i was under the modulus p to a for b at the end of the discrete logarithm.)

发送QQ群发信息

石英时钟实例源码，仅供参考学习使用，效果很不错哦

是CA算法的test程序，用于描述微观枝晶长大的代码！(CA algorithm is the test procedure, used to describe the micro-dendrites grew up in the code!)

matlab中的巴特沃斯滤波器的C语言实现(matlab butterworth filter in C language)

图像分割经典算法GraphCut的实现代码，亲测可用。(An implementation of GraphCut Algorithm, which is a classical method in image segmentation field.)

C语言编写的pic16f886单片机PMBus通信的程序，MICROCHIP公司给的案例。(The program of C language with pic16f886 microcontroller,used for PMBus communication, provied by MICROCHIP.)

MultiThread DB - ADO CMTDaoDatabase CMTDaoRecordset

esp8266官方最新源码 v：2.1。包含IoT物联网，AT固件，mqtt实时通信