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The design of digital frequency meter can be divided into measurement and displa...
数字频率计的设计可以分为测量计数和显示。其测量的基本原理是计算一定时间内待测信号的脉冲个数,这就要求由分频器产生标准闸门时间信号,计数器记录脉冲个数,由控制器对闸门信号进行选择,并对计数器使能断进行同步控制。控制器根据闸门信号确定最佳量程。-The design of digital frequency meter can be divided into measurement and display count. The basic principle of its measurement is calculated under test signal within a certain period of time the number of pulses, which have a standard requirement by the divider gate time signal pulse counter records the number of signals from the controller to choose the gates and counters to make off synchronous control can be carried out.Controller based on the gate signal to determine the optimum range.
- 2022-07-05 10:34:03下载
- 积分:1
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against certain embedded systems handle large data volume and speed of high
针对某些嵌入式系统中处理数据量大和速度要求高的特点, 在剖析了uCOS - Ⅱ内核工作原理的基础上, 提出一种应用于uCOS - Ⅱ中的大容量内存文件系统的实现方案1 该方案通过在内存中建立文件系统, 将临时数据有效组织于内存中, 既提高访问速度又节省外存空间-against certain embedded systems handle large data volume and speed of high-features in the analysis for uCOS-II core principle on the basis of An application for uCOS-II, a large memory capacity of the file system to achieve a program of the program in 1988 through the construction documents, data will be temporarily effective organization in memory, not only increase the rate of savings Disk Space
- 2022-11-27 23:20:03下载
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WINDOWS核心编程笔记
WINDOWS核心编程笔记-core Windows Programming Notes
- 2022-01-27 17:11:12下载
- 积分:1
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PDF自动贩卖机PC机接口电路原理图
PDF with a schematic circuit for a Vending Machine Interface for PC
- 2022-05-08 09:30:17下载
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本文分析了Win32 环境下内存映射文件技术的系统实现原理, 并结合嵌入式文件系统的特点, 给出了该技术在嵌入式
实时通讯系统中对多进程间数据共享问题的解决...
本文分析了Win32 环境下内存映射文件技术的系统实现原理, 并结合嵌入式文件系统的特点, 给出了该技术在嵌入式
实时通讯系统中对多进程间数据共享问题的解决方案-This paper analyzes the circumstances Win32 memory-mapped file system technology principle, combined with the characteristics of embedded file system, given the technology in embedded real-time communication systems for data sharing between multi-process solution to the problem
- 2022-06-16 11:25:25下载
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这个是在参加电子设计大赛时的作品,里面包含了简易信号测量仪的设计原理、细节、源码 (本文属于本人转载的)...
这个是在参加电子设计大赛时的作品,里面包含了简易信号测量仪的设计原理、细节、源码 (本文属于本人转载的)-err
- 2022-12-02 19:15:03下载
- 积分:1
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Six layers of memory board documents, six layers of PCB wiring, it is also usefu...
六层内存条板文件,六层PCB布线,值得参考。-Six layers of memory board documents, six layers of PCB wiring, it is also useful.
- 2022-07-19 23:55:50下载
- 积分:1
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3D应用解决方案,包括人体头部参数化建模,空间点集可视化,各类模拟等。...
3D应用解决方案,包括人体头部参数化建模,空间点集可视化,各类模拟等。-3D application solutions, including the human head parametric modeling, spatial point set visualization, such as various types of simulation.
- 2022-09-02 21:40:04下载
- 积分:1
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2009年全国大学生电子设计大赛C题
2009年全国大学生电子设计大赛C题--宽带直流放大器-2009 National Undergraduate Electronic Design Contest C title- Broadband DC Amplifier
- 2022-01-24 16:37:57下载
- 积分:1
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arm_tracerII_v2.0说明书
arm_tracerII_v2.0说明书-arm_tracerII_v2.0 brochures
- 2022-03-02 08:47:02下载
- 积分:1