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Description: 此频率计是用单片机89C51和几块数字电路几个三极管，和一个微波集成电路构成。可测量频率最高为2G！分辨力为1HZ！电路中R16---R27电阻阻值为1K。这文件包里有两符制作成功后的图片！ 二个SCH。一个PCB文件。一个PDF文件。和一个程序HEX文件。制作的时候只要按线路板接好元件，然后把程序HEX文件烧写到单片机内，就可以调试了，希望大家成功。其中高稳定振荡电路SCH文件是我新加上的。如果大家有条件用上这电路也不错。那样频率计将更稳定。频率计的PCB是我设计的。 设计得不太好，希望大家多多提出意见和建议。希望大家不要修改PCB文件。
注：解压密码deyiluntan-this Cymometer is 89C51 microcontroller and a few digital circuit several triode, and constitute a microwave integrated circuits. The maximum measurable frequency for 2G! Resolution of 1HZ! Circuit R16-R27 resistor 1K. This paper bag has produced two successful website after pictures! 2 SCH. A PCB document. A PDF document. HEX and a procedures document. Whenever produced by the PCB then good components, then burning procedures HEX file to SCM, can debug, I hope you succeed. These high stability oscillation circuit SCH document is a new addition. If we conditional use this circuit is a good one. As the frequency of dollars will be more stable. Frequency of PCB is my design. Design it very well, we hope that many opinions and suggestions. We should not amend the PCB document. Note : extracti
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Size: 1028980 |
Author: 耿铭慈 |
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Description: 使用LCD 3310液晶显示屏的数字频率计源程序-use LCD display digital source Cymometer
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Size: 6175 |
Author: fbs |
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Description: 基于MEGA128的多功能仪器,提供以下9种功能：
1. 2路0-10 VDC 电压表
2. 1路0-30V DC 电压表，带有一个10X跳针，可以测试0-300VDC
3. 0 – 3 安电流表
4. 4 通道逻辑分析仪
5. 频率发生器，50%占空比方波，0－5VDC，1HZ到8MHZ.
6. 波形发生器，正弦波、三角波、方波，1HZ 到 20＋MHZ?
7. 频率计
8. +5 VDC ，200 mA 供电输出
9. -5 VDC ， 300 mA 供电输出
-MEGA128 based on the multifunctional equipment to provide the following nine functions : 1. Two Road 0-10 VDC voltage Table 2. A Road 0-30V DC voltage meter, with a 10X jump needles to test 0-300VDC 3. 0-3 - 4 ammeter. 4-channel logic analyzer 5. Frequency Generator, 50% duty cycle square 0-6 - 5VDC, to 8MHZ 1HZ. 6. waveform generator, sine, triangle wave, square wave, 1HZ MHZ to 20 + 7. Cymometer 8. 5 VDC, 200 9 mA output power. 5 VDC, 300 mA output power
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Size: 513522 |
Author: 许海洋 |
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Description: vhdl 实现的频率计，可以到实验箱上实现．-vhdl achieve the frequency, it can be to achieve experimental box.
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Size: 1024 |
Author: yly |
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Description: 这是一个基于FPGA的频率计和相位计的设计方案-This is an FPGA-based Cymometer and design phase of the program
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Size: 675840 |
Author: zhaoyang |
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Description: 频率计的代码，用ads 1.2 呵呵 不错，
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Size: 1095680 |
Author: 东 |
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Description: 自制方波发生器及频率计
材料:
AT89S52 + AT89C2051
1个8位共阳七段显示器
8个NPN三极管
11.0592Mhz晶振x2-Home-made square-wave generator and frequency meter material: AT89S52+ AT89C20511 a total of eight display Yang paragraph 8 NPN transistor 11.0592MHz crystal x2
Platform: |
Size: 34816 |
Author: MagicBear |
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Description: xilinx实现4位频率计，可测量从1HZ到9999HZ的频率信号，并将被测的信号频率输出显示到实验仪的数码管上。-Xilinx achieve Cymometer 4, measurable, from 1Hz to 9999HZ frequency signals, and measured the frequency of the output signal indicates that the experimental instrument digital tube.
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Size: 88064 |
Author: haolj |
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Description: 低频频率计
实例目的：学习定时器、计数器、中断应用
说明：选用24MHz的晶体，主频可达2MHz。用T1产生100us的时标，T0作信号脉冲计数器。假设晶体频率没有误差，而且稳定不变（实际上可达万分之一）；被测信号是周期性矩形波（正负脉冲宽度都不能小于0.5us），频率小于1MHz，大于1Hz。要求测量时标1S，测量精度为0.1％。-Examples of low-frequency frequency meter Objective: To study timer, counter, interrupt Application Note: optional 24MHz crystal, frequency up to 2MHz. 100us generated by the T1 time scale, T0 for the signal pulse counter. Assuming there is no crystal frequency error, and stable (in fact up to one ten thousandth) the measured signal is periodic rectangular wave (positive and negative pulse width can not be less than 0.5us), the frequency of less than 1MHz, greater than 1Hz. Requested measurement time scale 1S, measurement accuracy of 0.1.
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Size: 2048 |
Author: 王伟 |
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Description: 采用VerilogHDL语言编写的数字频率计-VerilogHDL languages using digital frequency meter
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Size: 849920 |
Author: cherry |
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Description: 频率计，测时法，测周法测量频率，555产生频率信号，利用单片机实现测量并显示在LED上-Cymometer measured when the law, measuring the frequency of testing weeks, 555 have a frequency signal, using SCM measurement and display in the LED on the
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Size: 1636352 |
Author: 魏德宝 |
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Description: 基于89C51的等精度频率计LCD1602显示，附带proteus仿真原理图以及原程序！-89C51-based, such as the accuracy of the frequency meter LCD1602 display, incidental Proteus schematic simulation, as well as the original program!
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Size: 160768 |
Author: 123456 |
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Description: 数字频率计程序，网上下载后已改动过，能用-Digital Cymometer procedures, on-line has been altered after the download, can be
Platform: |
Size: 4096 |
Author: 张永余 |
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Description: C51 数字频率计
C51 数字频率计
C51 数字频率计-C51 Digital Cymometer C51 Digital Cymometer C51 digital frequency meter digital frequency meter C51
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Size: 1024 |
Author: rong |
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Description: 数字频率计的源码
最大测量频率达到30MHz-Digital frequency meter measuring frequency of the source code to achieve the maximum 30MHz
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Size: 173056 |
Author: 王继超 |
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Description: Verilog 编写的频率计，使用8位LED作为显示，Quartus II 6.0的工程文件。保证好用，EPM240T的芯片。使用了66 的资源。-Written in Verilog frequency counter, using 8-bit LED as the display, Quartus II 6.0 of the project file. To ensure easy to use, EPM240T chips. 66 of the resources used.
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Size: 585728 |
Author: 石头 |
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Description: 在单片机应用系统中利用C 语言编程具有一定优点。介绍了用C 语言实现数字频率计的软件设计。介绍了C 语言使
用中几个关键问题。并对数字频率计的主程序、显示程序中小数点处理程序进行了论述。全部软件编程不是采用常规的汇编
语言, 而是利用C 语言强大的浮点运算能力, 实现频率计的软件设计。因此提高了频率计的测量精度。具有一定的实用价值。-The ar t icle int roduces the sof tw are of digital cymometer and int roduces the key p roblem using C lan2
guage . Instead of comp iler language, themain p rogram and disp lay p rogram of digital cymometer are designed by
C language . Th is method enhances the measurement p recision and po ssesses def inite p ract ical value .
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Size: 94208 |
Author: 才子 |
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Description: 这个是频率计！对于硬件来说是很好的程序，希望对大家有帮助。-This is cymometer! For hardware is a good program, we hope to help.
Platform: |
Size: 39936 |
Author: luohuanju |
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Description: 硬件频率计的实现，包括十分频，门控信号产生，频率测量等-cymometer implementation， involving 10 times divider, generating gate controling signal and frequency measurement
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Size: 2048 |
Author: s |
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Description: fpga，关于cymometer的程序，所有源文件都在里面，绝对原创-fpga，about cymometer，all uesful files in it
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Size: 323584 |
Author: 陈玉莹 |
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