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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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直流电机闭环控制用ATM89C51实现。在Keil C 51 下编译通过
直流电机闭环控制用ATM89C51实现。在Keil C 51 下编译通过-DC motors with closed-loop control ATM89C51 realize. In the Keil C 51 under the compiler through
- 2022-06-03 14:45:18下载
- 积分：1
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单片机C语言程序，实现单片机控制计算机键盘的功能
单片机C语言程序，实现单片机控制计算机键盘的功能-Single-chip C language program, single-chip implementation of the functions of computer keyboard
- 2023-04-21 01:05:03下载
- 积分：1
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Nickel battery configuration procedures AT89S51 Singlechip development, for the...
镍电池配置程序AT89S51单片机开发，用于充电电池控制-Nickel battery configuration procedures AT89S51 Singlechip development, for the rechargeable battery control
- 2023-05-02 02:55:04下载
- 积分：1
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发射芯片nrf24e1的控制字配置，发射子程序
与单片机的通讯
发射芯片nrf24e1的控制字配置，发射子程序
与单片机的通讯-Launch control chip nRF24E1 word configuration, launch communications subroutine with SCM
- 2022-08-21 09:26:49下载
- 积分：1
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用于串口通信的源代码
用c编程的程序
希望对大家有用
用于串口通信的源代码
用c编程的程序
希望对大家有用-for serial communication with the source code c programming procedures hope useful for all
- 2023-08-27 14:15:03下载
- 积分：1
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基于AVR的USB单片机的源代码,其中部分代码被用在产品上.
基于AVR的USB单片机的源代码,其中部分代码被用在产品上.-based on the USB AVR microcontroller source code, part of which code was used in products.
- 2022-03-09 15:46:46下载
- 积分：1
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PIC运算程序库 集合包,汇编程序格式，可直接运用于PIC16F8xx系列单片以及与此指令兼容的PIC单片机...
PIC运算程序库 集合包,汇编程序格式，可直接运用于PIC16F8xx系列单片以及与此指令兼容的PIC单片机-PIC computing library collection package, assembler format, can be directly applied to PIC16F8xx series of single-chip, as well as compatible with this directive PIC microcontrollers
- 2022-08-19 09:36:04下载
- 积分：1
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555编程器，用于单片机编程使用，可以用一用就知道有没有！...
555编程器，用于单片机编程使用，可以用一用就知道有没有！-555 programmer, programming for the use of SCM can be used on a not know!
- 2022-03-05 12:09:14下载
- 积分：1
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专供电子爱好者阅读，或者参加各类电子设计比赛用！
专供电子爱好者阅读，或者参加各类电子设计比赛用！-Specifically for reading electronic enthusiasts, or participate in various types of electronic design racing!
- 2022-06-28 19:01:26下载
- 积分：1
