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dengjingdupinlvji
- 等精度频率计，实时检测频率数值，可达到1Hz精确，周期，占空比等-Precision frequency meter, real-time detection of frequency values up to 1Hz precise, period, duty cycle, etc.
frequency-meter
- 等精度频率测量Mini51B方案,采用51单片机和CPLD实现等精度频率计的设计与现实-Such as the accuracy frequency measurement Mini51B program
pinlvji
- 等精度频率计原理，电路图，单片机程序全套，-And other precision frequency principle, schematics, SCM
frenq
- 用于等精度频率计测量程序,可下载至FPGA,或CPLD芯片中-Used for other precision frequency measurement procedures
CPLD
- 基于CPLD的等精度频率计的单片机程序，用的是EPM5701T00C5芯片-Based on CPLD and other precision frequency of the SCM process, using EPM5701T00C5 chip
precision-frequency-meter-design
- 基于51软IP核的等精度频率计设计，利用altera提供的软51ip核，用VHDL语言实现的-Based on 51 soft IP cores, such as precision frequency meter design, the use of the software provided 51ip altera core, using VHDL language
djdfre
- 基于51单片机和cpld的等精度频率计，精度可以达到十万分之一-51 And cpld based on the precision frequency meter, the accuracy can reach one hundred thousandth
frequence
- 基于51单片机的等精度频率计原理图，简单额原理，强大的功能，很实用的-Based on 51 single-chip precision frequency meter schematic, the amount of the principle is simple, powerful, very useful
FPGA-frequency
- 本设计基于FPGA设计等精度频率计，并采用NIOS II控制液晶显示器显示测量频率。-The design is based on FPGA design precision frequency meter, and using NIOS II controlled LCD display shows the measured frequency.
DENG-JING-DU
- 基于FPGA的等精度频率计设计，实现百万分之一的误差精度-FPGA-based design and other precision frequency to achieve the accuracy of one millionth of error
plj
- 基于51单片机可测200mHZ频率等精度频率计，误差不超过0.5HZ-To measure 200mHZ frequency equal precision frequency meter
oooo
- 基于fpga和51单片机的等精度频率计，通过fpga对信号进行采集，数据传给单片机计算，再由12864进行显示，可进行频率，周期，脉宽，占空比，幅值等的测量。-Fpga and 51 microcontroller based precision frequency meter, through fpga for signal acquisition, data to the microcontroller to calculate, and then by 12864 for display,
MCUcode
- 51单片机+74HC74数字芯片，等精度频率计设计。可精确测得1HZ~1MHz频率信号。- 51MCU+74HC74,the design of precision frequency meter.It can be accurately measured 1HZ ~ 1MHz frequency signal.
Precision-frequency
- 等精度频率计设计,含说明文件，设计工程文件-Precision frequency meter design, including documentation, design engineering documents
equal-precision-frequency-counter
- 这个是参加电子设计大赛时候用51单片机做的等精度频率计,测量精度比较准确-This is to participate in the electronic design contest with 51 single chip to do the accuracy of the frequency meter, the accuracy of the measurement is more accurate
verilog_c
- 采用Verilong编写的等精度频率计，调试成功可测频率、周期、占空比、正负脉宽。-Written using Verilog and other precision frequency meter, debugging success can be measured frequency, period, duty cycle, positive and negative pulse widths.
FPGA-频率计（等精度测频+SPI通信）
- 本程序采用FPGA编程，实现等精度测频的程序，并且有实现SPI通信的程序。(This procedure uses FPGA programming, such as precision frequency measurement procedures, and to achieve SPI communication procedures.)
dengjingdu
- 等精度测量，频率越高精度越高，每一秒取一次数，然后经过乘除法实现，FPGA功能前更大的。还用到STM32 SPI通信(The accuracy of measurement, the higher the frequency accuracy is high, every second to take a number, then after multiplication and division, FPGA function more. STM32 SPI communications are
kese0
- 频率计等精度测量测频测周期测相位 运用Verilog语句 在FPGA(asdsssfdfsdffjtfjtjrtrt)
方案二
- 本系统是基于CPLD和单片机的一种用于信号频率周期、时间间隔和占空比测量的数字频率计，系统由AGC（自动增益控制）电路、宽带放大电路、高速比较电路实现有效值10mV/频率100MHz和处理显示部分组成，其中AGC电路实现幅度自动增益控制使放大后的信号幅度在一定的范围内保持一致，比较电路将前级电路输出的信号转换成CPLD,利用等精度测频原理，实现闸门时间1S的高精度测量。单片机通信处理数据并显示，数据表明，系统精度达到发挥部分要求。(This system is a CPLD microcontr