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在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测...
在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct
- 2022-07-23 20:30:08下载
- 积分：1
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为了满足广大电脑爱好者学习VisualBasic6.0 中文版软件的需
要，及配合微软（中国）有限公司发布VisualBasic6.0 中文版，美
国微...
为了满足广大电脑爱好者学习VisualBasic6.0 中文版软件的需
要，及配合微软（中国）有限公司发布VisualBasic6.0 中文版，美
国微软出版社授权翻译、出版以下VisualBasic6.0 系列手册：-Computer enthusiasts in order to meet the aspirations of the Chinese version of the software VisualBasic6.0 learning needs, and with Microsoft (China) Co., Ltd. Published VisualBasic6.0 the Chinese version of the United States authorized by Microsoft Press translate, publish the following series of handbooks VisualBasic6.0:
- 2022-03-16 10:35:20下载
- 积分：1
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连锁酒店VPN解决方案由于商务型、游客型的客人占大部分的酒店住房比例，这些客人多半有收发MAIL、实时通、Skype、数码相机传输、浏览网页等方面的需求，因此是...
连锁酒店VPN解决方案由于商务型、游客型的客人占大部分的酒店住房比例，这些客人多半有收发MAIL、实时通、Skype、数码相机传输、浏览网页等方面的需求，因此是否能提供优质的宽带上网服务，可以说是酒店市场决胜的关键之一
-Hotel Chain VPN solution as a result of business type, tourists accounted for the majority of guests type of hotel housing ratio, most of these guests have to send and receive MAIL, real-time Qualcomm, Skype, digital cameras transmission, visit the website needs of the community, so it can provide high-quality broadband Internet access services, it can be said that the hotel market, one of the keys to victory
- 2022-03-26 13:47:30下载
- 积分：1
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介绍了一种基于ARM9和Linux操作系统的心电记录仪。该记录仪以32位低功耗ARM9微处理器S3C2410X为核心,在其上移植了Linux操作系统,利用轻量级...
介绍了一种基于ARM9和Linux操作系统的心电记录仪。该记录仪以32位低功耗ARM9微处理器S3C2410X为核心,在其上移植了Linux操作系统,利用轻量级的图形用户界面支持系统MiniGUI进行软件界面开发-Introduce an approach based on ARM9 and Linux operating systems ECG recorder. The logger to 32 low-power ARM9 microprocessor S3C2410X for the core of the transplant in its Linux operating system, the use of lightweight graphical user interface support system for software interface development MiniGUI
- 2022-02-04 06:36:20下载
- 积分：1
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Water meter interface with Jennic
Water meter interface with Jennic
- 2022-04-09 08:08:49下载
- 积分：1
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mother chod gand maar behen ki
mother chod gand maar behen ki
- 2022-01-25 23:16:19下载
- 积分：1
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LPC2 series ARM processor re
LPC2 系列ARM处理器重映射原理的分析与实现 学习smartarm 的好资料-LPC2 series ARM processor re-mapping analysis and the realization of the principle of learning good information smartarm
- 2023-02-13 07:55:03下载
- 积分：1
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This program would work fine only with a specific flash tool through PC printer...
This program would work fine only with a specific flash tool through PC printer port under EPP mode.Program is capable of identifying flash chip manufacturer, device type, capacity,... It also allows user to dump flash data, edit/revise the content of flash chip on the Screen, and re-write them back to the chip.
- 2022-11-24 13:40:05下载
- 积分：1
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单片交通灯课程设计，吃程序好```
好得不得了```好得了不得...
单片交通灯课程设计，吃程序好```
好得不得了```好得了不得-Single-chip traffic lights curriculum design, good eating program `` ```` a very, very good good had not allowed
- 2023-03-28 14:25:03下载
- 积分：1
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设计模式之singleton模式例程
设计模式之singleton模式例程-model singleton design pattern routines
- 2022-07-06 11:28:07下载
- 积分：1
