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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
- 2023-01-08 22:50:02下载
- 积分:1
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题目实现DOS中的COPY命令。可首先打开源文件和目的文件,其次顺序读取源文件每个字节赋给目的文件对应位置,源文件读完时,目的文件也自然拷贝成功。...
题目实现DOS中的COPY命令。可首先打开源文件和目的文件,其次顺序读取源文件每个字节赋给目的文件对应位置,源文件读完时,目的文件也自然拷贝成功。-Title achieve the DOS in the COPY command. Be the first to open the source file and destination file, followed by sequential reads the source file is assigned to the purpose of the file corresponds to each byte location, the source file read, the purpose of copying documents the success of the natural.
- 2023-07-11 05:20:03下载
- 积分:1
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数字电子钟程序配置文件规范数字电子钟…
数字电子钟方案简介说明书数字电子钟不但可以显示当前的时间,而且可以显示日期、农历、以及星期等,给人们的生活带来了方便。另外数字钟还具备秒表和闹钟功能,且闹钟铃声可自选,-Digital electronic clock program profiles specification digital electronic clock not only can display the current time, and can display the date, lunar, as well as the weeks and so on, to people
- 2022-01-24 15:49:32下载
- 积分:1
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它可以帮助您使用C++程序
it can help you use C++ program we
- 2022-01-25 16:30:29下载
- 积分:1
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此程序用于医疗方面,可有效监控病人的状况。
此程序用于医疗方面,可有效监控病人的状况。-For medical aspects of this procedure, which can effectively monitor the patient s situation.
- 2022-03-12 02:40:29下载
- 积分:1
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This is a performance management system for students, some function is not perfe...
这是一个学生成绩管理系统,有部分功能还不完善,以后会慢慢更新的:)-This is a performance management system for students, some function is not perfect, the future will gradually updated :)
- 2022-08-15 03:03:44下载
- 积分:1
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这是几年前我写的,自动识别RS485和RS232接线极性、自动检测波特率、自动匹配协议的云台控制软件,只是当时我还没用C写...
这是几年前我写的,自动识别RS485和RS232接线极性、自动检测波特率、自动匹配协议的云台控制软件,只是当时我还没用C写-This is a few years ago I wrote, and automatic identification RS485 and RS232 wiring polarity, automatically detects the baud rate, auto-matching agreement Yuntai control software, but I did not then use C to write
- 2022-07-15 01:22:44下载
- 积分:1
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我用汇编语言编写的程序文件,删除了读写的文件…
我用汇编语言编写的程序 能够实现文件的复制删除读出显示等功能-I use assembly language programs written copies of files deleted read display function
- 2022-11-11 14:40:03下载
- 积分:1
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lcd1602与温度传感器18b20的综合应用
lcd1602与温度传感器18b20的综合应用
-lcd1602 with the temperature sensor integrated application 18b20
- 2022-06-19 08:28:22下载
- 积分:1
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汇编小游戏,主要是坦克打靶,通过控制坦克来击打天空中飞来飞去的靶子...
汇编小游戏,主要是坦克打靶,通过控制坦克来击打天空中飞来飞去的靶子-Compilation of small games, mainly targeting tanks, by controlling the tank to hit the sky flying target
- 2023-01-12 11:05:03下载
- 积分:1