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frequent
- FPGA等精度测频模块,实现任意频率的等精度测量-FPGA and other precision frequency measurement module, such as precision measurement of any frequency
DS18B20LCD
- DS18B20温度测量程序 之后用于在LCD显示屏上显示对应的温度-DS18B20 test code
DF2C8_13_DS18B20
- verilog实现单总线DS18B20温度测量-verilog DS18B20 temperature measurement single-bus
Measured-phase-shift-FPGA
- 数字频率计是用于测量信号频率的电路。测量信号的频率参数是最常用的测量方法之一。实现频率测量的方法比较多, 在此我们主要介绍三种常用的方法: 时间门限测量法、标准频率比较测量法、等精度测量法-Digital frequency meter is used to measure the frequency of the circuit. Measuring signal frequency parameter is the most common measurement methods. The m
1
- 用单片机AT89S51与ADC0809设计一个数字电压表,能够测量0-5V之间的直流电压值,四位数码显示-Microcontroller AT89S51 with ADC0809 design with a digital voltmeter to measure between 0-5V DC voltage, four digital display
digital-voltmeter-
- 利用单片机AT89S51与ADC0809设计一个数字电压表,能够测量0-5V之间的直流电压值,四位数码显示-Microcontroller AT89S51 with ADC0809 design using a digital voltmeter to measure the 0-5V DC voltage between the value of four digital display
duty_ratio_measure
- 测量100MHz以下方波信号的占空比,作者水平有限,程序还需要完善-The following measurements 100MHz duty cycle square wave signal
fre
- 频率计的VHDL代码,实验课验证过的,能测量0-99999999hz的频率,并且超过上下限会报警。-Frequency counter in VHDL code, lab verified, can measure 0-99999999hz frequency, and over the limit will alarm.
PLJ
- 数字频率计实现等精度测量 用VHDL实现-Digital frequency meter
Frequency-counter
- 基于FPGA的频率计设计。通过FPGA运用、 HDL编程,利用FPGA(现场可编程门阵列)芯片设计了一个8位数字式等精度频率计,该频率计的测量范围为0-100MHZ,利用QUARTUS II集成开发环境进行编辑、综合、波形仿真,并下载到CPLD器件中,经实际电路测试,仿真和实验结果表明,该频率计有较高的实用性和可靠性。-Frequency counter FPGA-based design. By using FPGA, VHDL programming, the use of FPGA (fi
wendu
- 用LCD1602显示的温度上下限可调,温度测量仪。-LCD1602 display with adjustable upper and lower limits of temperature, temperature gauges.
plj
- 这是一个利用VHDL编写的简易数字频率计,它所能够测量的频率范围为:0~50MHZ,当被测量信号的频率越大则它的精度越高。-This is a simple written using VHDL digital frequency meter, it can measure the frequency range: 0 ~ 50MHZ, when the frequency of the signal being measured is greater the higher its accura
abcd
- 数字频率测量器,脉宽测量器。可测量多种频率波形的脉宽。-Digital frequency measurement device, pulse width measurement device. Measurement of the waveform of frequency pulse width
LCD-Digital-voltmeter
- 数字电压表的基本工作原理是利用A/D转换电路将待测的模拟信号转换成数字信号,通过相应换算后将测试结果以数字形式显示出来的一种电压表。较之于一般的模拟电压表,数字电压表具有精度高、测量准确、读数直观、使用方便等优点。-Digital voltmeter the basic working principle is to use A/D converter circuit to test the analog signals into digital Signal converted by th
DDSKeyAndLcd
- 基于SPCE061A的DDS 步进20Hz,两路输出,相位差可调,频率可到20多K,加上低通滤波,效果还不错.完全达到03年,电赛"相位测量仪"发挥部分波形发生器的要求. 程序中,频率初始值,相位差初始值通过键盘输入,液晶是KS0108的驱动芯片,如果液晶不一致,需要做相应的调整.-DDS base on SPCE061A
wendu-LCD
- STC89C52:温度测量18B20,并在LCD1602上显示-STC89C52: temperature measurement 18B20, and displayed on the LCD1602
xinhaofashengqi
- 关于电子测量信号发生器一些基本资料,很实用。-Electronic Measurement Signal Generator on some basic information, very useful
DS1624
- DS1624是美国DALLAS公司生产的集成了测量系统和存储器于一体的芯片。数字接口电路简单,与I2C总线兼容,且可以使用一片控制器控制多达8片的DS1624。其数字温度输出达13位,精度为0.03125℃。DS1624可工作在最低2.7V电压下,适用于低功耗应用系统。-DS1624 is the United States of America DALLAS company integrated measuring system and memory in one chip. Digital
pin-lv-ji
- 设计的是一个数字频率计,通过八个七段数码管显示频率值。系统时钟选择的50M的时钟,闸门时间为1s(通过对系统时钟进行分频得到),在闸门为高电平期间,对输入的频率进行计数,当闸门变低的时候,记录当前的频率值,并将频率计数器清零,频率的显示每过2秒刷新一次。被测频率通过一个拨动开关来选择是使用系统中的数字时钟源模块的时钟信号还是从外部通过系统的输入输出模块的输入端输入一个数字信号进行频率测量。当拨动开关为高电平时,测量从外部输入的数字信号,否则测量系统数字时钟信号模块的数字信号。(附详细PDF文档介
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- 低频幅频特性测试仪 基于FPGA和单片机 能测量信号的频率特性和相频特性,并能绘制曲线-The main principle is 8 channels signal input, output to the corresponding tube feet, drive the corresponding diode circuits and LED digital display so as to achieve the purpose of the tube