ReportDesign

说明：  OV7670照相模组硬件应用指南1.01 OVT，希望大家喜欢(OV7670 Photo Module Hardware Application Guide 1.01 OVT, I hope you like it.)

重庆大学软件学院操作系统实验二，线程及其调度，实现并行排序，并用图形界面表示(operating system test 2，thread scheduling and realize the parallel sorting showing as a graphical interface)

其原理很简单，就是MSP430F14x系列单片机Timer A模块有一个比较/匹配功能，利用这一功能可以输出任意频率、任意占空比的方波，把这些方波输给蜂鸣器就可以播放了。当然要让蜂鸣器播放《最炫民族风》，最大的挑战是写C语言版的“乐谱”。所幸小时候学过五六年的小提琴，再加上物理竞赛的背景，因而对于乐谱、乐理、音频、节奏等等关键概念都略懂一二。废话不多说了，直接上源代码： (The principle is very simple, is MSP430F14x Series MCU Timer A module has a compare/match function, the use of this feature can be output at any frequency, arbitrary duty cycle square wave, square wave lost these can play a buzzer. Of course, to make the buzzer play " the most unusual national wind" , the biggest challenge is to write C-language version of " music." Fortunately, the child learned the violin in 2056, coupled with the physical contest background, and thus for sheet music, music theory, audio, rhythm, etc. have little knowledge of twelve key concepts. Ado, directly on the source code:)

php 爬虫 抓取58等网站的职位job信息(crawl for jobs from 58)

pic modified sine wave inverter circiut

说明：  基于STM32F407的LED音乐频谱，AD+DMA采集音乐信号，利用FFT运算得出音乐频谱，通过10*8的LED点阵显示的音乐频谱单片机代码(Based on the LED music spectrum of STM32F407, AD+DMA collects the music signal, obtains the music spectrum by FFT operation, and displays the music spectrum code by 10*8 LED dot matrix.)

qt远控桌面源码，亲测可用。bin目录下有生成好的可执行程序

WifiDisplaySink

c51的st7920程序 c51的st7920程序(C51 of the C51 program st7920 procedures st7920)

c++ effective系列丛书电子版(c++ effective electronic version of the book series)