DEELX 正则表达式引擎(v1.2) DEELX 是一个在 C++ 环境下的与 Perl 兼容的正则表达式引擎。是 RegExLab 开展的一个研究开发项目。 基本特点: 支持与 Perl 兼容的正则表达式语法。 支持 IGNORECASE, SINGLELINE, MULTILINE 等常见匹配模式。 兼容性强,能在 vc6, vc7, vc8, gcc, Turbo C++ 等大多数 C++ 环境编译。 支持命名分组,条件表达式,递归表达式等多种高级特性。(1.2版本新特点) 与 GRETA、boost 相比,DEELX 独到之处: 完全使用模版库编写,支持 char, wchar_t, int 等以及其他基类型版本。 全部代码位于一个头文件(.h)中, 比任何引擎都使用简单和方便。 支持从右向左匹配模式,可从文本结束位置向前搜索匹配。 可防止零长度子匹配循环无限次而产生的死循环。(1.2版本新特点)
上传时间: 2017-02-21
上传用户:zhenyushaw
The FPGA can realize a more optimized Digital controller in DC/DC Converters when compare to DSPs. In this paper, based on the FPGA platform, The theoretical analysis, characteristics, simulation and design consideration are given. The methods to implement the digital DC/DC Converters have been researched. The function module, state machine of digital DC/DC controller and high resolution DPWM with Sigma- Delta dither has been introduced. They are verified by experiments on a 20 W, 300 KHz non-isolated synchronous buck converters.
标签: Converters controller optimized Digital
上传时间: 2013-12-31
上传用户:tzl1975
Quake 3 s MD3 Viewer (july 13, 2007), loads and displays a player and a weapon. Supports lighting, texture mapping and animation. Includes a sample player model with weapon. See README for how to use it. Note (1): it uses the POSIX opendir/readdir functions, which are not implemented in all compilers under Windows (MinGW supports them). Note (2): This demo works on little endian architectures only. Libraries: OpenGL, GLU, GLUT, boost, libjpeg. Files: md3loader.zip (2.4 MB)
标签: and Supports displays lighting
上传时间: 2017-09-10
上传用户:czl10052678
The TAS3204 is a highly-integrated audio system-on-chip (SOC) consisting of a fully-programmable, 48-bit digital audio processor, a 3:1 stereo analog input MUX, four ADCs, four DACs, and other analog functionality. The TAS3204 is programmable with the graphical PurePath Studio™ suite of DSP code development software. PurePath Studio is a highly intuitive, drag-and-drop environment that minimizes software development effort while allowing the end user to utilize the power and flexibility of the TAS3204’s digital audio processing core. TAS3204 processing capability includes speaker equalization and crossover, volume/bass/treble control, signal mixing/MUXing/splitting, delay compensation, dynamic range compression, and many other basic audio functions. Audio functions such as matrix decoding, stereo widening, surround sound virtualization and psychoacoustic bass boost are also available with either third-party or TI royalty-free algorithms. The TAS3204 contains a custom-designed, fully-programmable 135-MHz, 48-bit digital audio processor. A 76-bit accumulator ensures that the high precision necessary for quality digital audio is maintained during arithmetic operations. Four differential 102 dB DNR ADCs and four differential 105 dB DNR DACs ensure that high quality audio is maintained through the whole signal chain as well as increasing robustness against noise sources such as TDMA interference. The TAS3204 is composed of eight functional blocks: Clocking System Digital Audio Interface Analog Audio Interface Power supply Clocks, digital PLL I2C control interface 8051 MCUcontroller Audio DSP – digital audio processing 特性 Digital Audio Processor Fully Programmable With the Graphical, Drag-and-Drop PurePath Studio™ Software Development Environment 135-MHz Operation 48-Bit Data Path With 76-Bit Accumulator Hardware Single-Cycle Multiplier (28 × 48)
上传时间: 2016-05-06
上传用户:fagong
用boost进行麦克风语音采集,通过buffer保存数据进行播放,此设计可以改动为语音对讲
标签: boost 语音采集 录音 播放
上传时间: 2016-06-03
上传用户:yhmleo
包括PCB,原理图以及程序代码。 本开关电源设计采用STC12C5A60S2单片机发生47KHZ的PWM脉冲信号,经过IR2104控制MOS,从而控制整个BUCK(降压式变换)电路。单片机内部自带的10位ADC能通过电压电流检测电流实时反馈电流和电压数值,并由此调整输出的PWM的占空比,形成电流电压闭环控制系统。按键能设置输出电流从0.2A到2A,以0.01A递增,输出最大10V,液晶能显示实时输出电流与电压。根据测试,满载的供电效率为88%。按键设置的输出电流的误差小于0.01A。
上传时间: 2016-06-15
上传用户:sjr88
内容很有指导性,很详细,具有较大的参考价值,研究PFC电路的朋友可以下载
上传时间: 2016-08-11
上传用户:slforest
本开关电源设计采用STC12C5A60S2单片机发生47KHZ的PWM脉冲信号,经过IR2104控制MOS,从而控制整个BUCK(降压式变换)电路。单片机内部自带的10位ADC能通过电压电流检测电流实时反馈电流和电压数值,并由此调整输出的PWM的占空比,形成电流电压闭环控制系统。按键能设置输出电流从0.2A到2A,以0.01A递增,输出最大10V,液晶能显示实时输出电流与电压。根据测试,满载的供电效率为88%。按键设置的输出电流的误差小于0.01A。 关键词:开关电源,BUCK,STC单片机,IR2104,恒流源
上传时间: 2017-07-07
上传用户:砚子儿*
网络爬虫 网络爬虫在CPP中爬行链接到你想要的深度。控制台应用程序 Ubuntu 14.04 LTS上编译的程序 用g+编译器编译 相依性 卷曲 Boost图书馆 用于编译的命令 G+爬虫.cpp-lcurl-lost_regex-o爬虫 输入 URL:您想要抓取示例“dirghbuch.com”的URL 链接数:要从爬行中提取的每页链接数 深度:我们想爬多深,在哪里深度可以定义为树的深度。 输出量 crawler.txt 限制 链接数最多可达100。 Does not work for website which has blocked curl crawling for example google.com yahoo.com 由于缺乏并行性,所以速度很慢。 没有完整URL的链接被追加到用户在大容量中插入的URLwww.xyz.com有/conatct-us的网址将是www.xyz.com/contact-us 唯一的单词也包含html标记。 可能的改进,但尚未落实 限制共享变量的使用 改进使其易于并行化 比卷曲更有效的爬行方式
上传时间: 2018-06-20
上传用户:1370893801
针对电动汽车动力电池组长期不能完全充满而影响其使用寿命,设计了一种光伏电池车载充电装置,能够对动力电池组长时间小电流涓流充电以改善其充电状态,同时部分补充电池组能量,延长电动汽车续航里程与使用寿命。采用TMS320F2808 DSP芯片作为控制核心、以BOOST升压变换器作为主电路的硬件设计方案,完成了主要元器件的选型和参数整定,对设计参数进行了仿真验证和优化,并研制了样机。制定了高性能算法与控制策略,既能完成光伏电池最大输出功率的跟踪,又能提高电池的充电效率,并基于MATLAB平台完成了DSP嵌入式应用程序设计,生成代码。配备了车载监控系统,实现良好的人机交互功能。实验结果表明:该装置性能稳定,光伏电池最大输出功率跟踪速度快,稳态误差小,效率高,并具有防止电池组过充电保护,人性化的人机交互平台,有很强的实用性。
上传时间: 2018-10-17
上传用户:cyyyyyy