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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
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飞利浦320*240液晶驱动,seed13350控制板.
飞利浦320*240液晶驱动,seed13350控制板.-320* 240 Philips LCD driver, seed13350 panels.
- 2022-03-05 07:54:38下载
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DS18B20 driver assembly language made by the two digital display, the program ha...
ds18b20的驱动程序,汇编语言编的,由两位数码管显示,程序已经在AT89C51上调通了,附带proteus仿真文件。-DS18B20 driver assembly language made by the two digital display, the program has had a rise in the AT89C51, incidental Proteus simulation file.
- 2022-11-20 02:40:03下载
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数控调频台的汇编程序,可对数控调频台进行控制,有很好的效果...
数控调频台的汇编程序,可对数控调频台进行控制,有很好的效果-NC FM conctrol
- 2023-07-03 22:20:03下载
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Through the AT89C51, can be carried out on the LCD to read and write.
通过AT89C51,可以对LCD 进行读和写.-Through the AT89C51, can be carried out on the LCD to read and write.
- 2022-07-08 19:14:34下载
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用MASM写的显示系统时间的程序,内附源码和说明
用MASM写的显示系统时间的程序,内附源码和说明-written with Multiple Display System time-consuming procedures, and notes containing FOSS
- 2022-04-24 21:05:04下载
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control interrupted code compilation
控制中断的汇编代码-control interrupted code compilation
- 2022-07-18 12:42:41下载
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C51 LCD Keyboard driver
C51 LCD Keyboard driver
- 2023-09-08 01:15:03下载
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WIN98硬盘引导记录祥解
WIN98硬盘引导记录祥解-WIN98 drive boot record xiang, XIE
- 2022-06-26 02:02:59下载
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DES是一种分组密码。假定明文m是由0和1组成的长度为64位的符号串,密钥k也是64位的0、1符号串。...
DES是一种分组密码。假定明文m是由0和1组成的长度为64位的符号串,密钥k也是64位的0、1符号串。-DES is a block cipher. M is expressly assumed by 0 and a length of 64 strings of symbols, as well as key k 0 64, a string of symbols.
- 2022-03-10 08:33:02下载
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