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In electronic technology, the frequency is one of the most basic parameters, but...
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
- 2023-03-06 02:50:04下载
- 积分:1
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这是本人去年学习所用的新华龙F020开发板的PCB Layout板.因为只用了两天时间画完,没有做走线优化.希望对大家有所帮助....
这是本人去年学习所用的新华龙F020开发板的PCB Layout板.因为只用了两天时间画完,没有做走线优化.希望对大家有所帮助.-This is the last year I used to learn new hualong F020 development board PCB Layout of the board. Because only two days画完, there is no alignment to do optimization. Want to be helpful to everyone.
- 2022-07-26 16:52:42下载
- 积分:1
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430单片机和液晶的接口方案,此方案在设计比较独到,很好解决了电平兼容的问题...
430单片机和液晶的接口方案,此方案在设计比较独到,很好解决了电平兼容的问题-430 microcontroller and LCD interface program, this program relatively unique in design, very good level to solve the compatibility problem
- 2022-04-11 15:31:08下载
- 积分:1
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模拟时钟12864(KS0108)用protues仿真和P.液晶显示器
模拟时钟 12864(ks0108)液晶显示 含protues仿真和程序
包含以下文件
main.c
l2864.c
12864.hex
-Analog Clock 12864 (ks0108) liquid crystal display with protues simulation and procedures contains the following files main.c l2864.c 12864.hex ...
- 2022-03-05 12:53:11下载
- 积分:1
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本书为赖麒文编著的《8051单片机C语言设计的艺术》富有众多开发实例,讲解丰富...
本书为赖麒文编著的《8051单片机C语言设计的艺术》富有众多开发实例,讲解丰富-The book is edited by Lai Qi Wen" s " 8051 C language design art" developed a number of examples of the rich to explain the rich
- 2023-06-02 20:05:04下载
- 积分:1
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SPCE061A 7289 键盘显示控制,7289的一些显示控制
SPCE061A 7289 键盘显示控制,7289的一些显示控制-SPCE061A 7289 keyboard display control, display control of some 7289
- 2022-03-01 21:12:42下载
- 积分:1
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This is a drive LCM module shows the 51 single procedure, module lattice is 128...
这是一个驱动LCM模块显示的51单片程序,模块点阵是128×64,使用的IC是ST7565P.-This is a drive LCM module shows the 51 single procedure, module lattice is 128 64, the IC is ST7565P.
- 2022-05-05 02:37:19下载
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实现一个基于8051单片机控制的4相步进电机系统 ,由单片机产生正确的驱动脉冲信号。...
实现一个基于8051单片机控制的4相步进电机系统 ,由单片机产生正确的驱动脉冲信号。-8051 based on the realization of a controlled 4-phase stepper motor systems, from single-chip driver generate the correct pulse signal.
- 2023-02-04 09:25:03下载
- 积分:1
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利用中文字型点矩阵控制器ST7290编写的清屏,移动光标等函数
利用中文字型点矩阵控制器ST7290编写的清屏,移动光标等函数-The use of Chinese fonts dot matrix controller ST7290 clearance preparation screen, move the cursor and other functions
- 2022-09-21 05:40:03下载
- 积分:1
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CC1110无线收发FDMA的源程序。使用的开发环境是IAR7.2H
CC1110无线收发FDMA的源程序。使用的开发环境是IAR7.2H-FDMA wireless transceiver CC1110 source. The use of development environment are IAR7.2H
- 2022-01-25 18:02:02下载
- 积分:1