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CPLD
- 项目的研究内容是对硅微谐振式加速度计的数据采集电路开展研究工作。硅微谐振式加速度计敏感结构输出的是两路差分的频率信号，因此硅微谐振式加速度计数据采集电路完成的主要任务是测出两路频率信号的差值。测量要求是：实现10ms内对中心谐振频率为20kHz、标度因数为100Hz/g、量程为±50g、分辨率为1mg的硅微谐振式加速度计输出的频率信号的测量，等效测量误差为±1mg。电路的控制核心为单片机，具有串行接口以便将测量结果传送给PC机从而分析、保存测量结果。 按研究内容设计了软硬件。软件采用多周期同
PINLVJI
- 利用51单片机实现数字信号频率周期测量，用LED数码管显示-The use of 51 single-chip digital signal frequency cycle measurement, digital control with LED display
armfreq
- 用arm实现0-20MHz的方波频率测量-Achieved with the arm of the square wave 0-20MHz frequency measurement
shiyan7
- 简易频率计，测量范围为8位，0到10000000。-Simple frequency meter, measuring the range of 8 bits, 0 to 10000000.
pinlvji
- 用单片机控制，实现输入频率的精确测量，protuse仿真程序-MCU control, accurate measurement of the input frequency, protuse simulation program
freq
- launchpad单片机测量频率，用测周法测量，误差1HZ左右-the launchpad SCM measurement frequency measurement error, using the measured perimeter method 1HZ about
Frequent_high
- 基于MSP430G2553单片机开发的一套频率计程序，可以实现低频段和高频段的精确测量，开发软件为CCS。-This code was developed under the environment of CCS,which can be used to measure the frequency precisely.
triangle-wave-measurement-code
- 自己编写的三角波测量程序，可实现对三角波幅度，频率和斜率的测量。-For triangle wave measurement program, I have written the triangular wave amplitude, frequency and slope measurements.
frequency
- 测量频率 测量输入信号的频率 测量频率 测量输入信号的频率-measure the frequency
TDC_GP21
- 基于TDC-GP21的频率测量，在10ms里的时间范围内达到3ns的分辨率，程序经过亲自测试。-Frequency measurement based on the TDC-GP21 in time within the range of 10ms, to achieve the 3ns resolution procedure has been personally tested.
430f5529_FreqenceCount
- 该程序是基于msp430f5529开发板的低频频率计，使用定时器TA2定时，端口中断计数，从而进行频率测量-The program is based msp430f5529 development board Frequency of dollars, using a timer TA2 timing port interrupt counting, frequency measurement and thus
celiang2
- 基于51单片机的频率测量，用码管显示，精准性极高，四位显示。-Based on 51 single-chip frequency measurement, using code display, high precision, four display.
pinlj2
- 基于51单片机的频率测量，精准度极高，使用四位数码管使用。-Based on 51 single-chip frequency measurement, high accuracy, the use of four digital tube use.
PWM-input-mode
- STM32 PWM输入模式进行频率的测量-measure frequency by STM32 PWM inputmode
capture_fre
- 12C5A60S2高精度频率测量子程序，PCA捕捉测频方便调用-Easy call 12C5A60S2 precision frequency measurement routines, PCA capture frequency measurement
示波器
- 基于stm32f4的示波器，测量后用TFT屏幕显示频率，波形，占空比(Stm32f4 based oscilloscope, measured with TFT screen display frequency, waveform, duty cycle)
频谱分析仪Tcl源码V6
- 频谱分析仪是研究电信号频谱结构的仪器，用于信号失真度、调制度、谱纯度、频率稳定度和交调失真等信号参数的测量，可用以测量放大器和滤波器等电路系统的某些参数，是一种多用途的电子测量仪器。它又可称为频域示波器、跟踪示波器、分析示波器、谐波分析器、频率特性分析仪或傅里叶分析仪等。现代频谱分析仪能以模拟方式或数字方式显示分析结果，能分析1赫以下的甚低频到亚毫米波段的全部无线电频段的电信号。仪器内部若采用数字电路和微处理器，具有存储和运算功能；配置标准接口，就容易构成自动测试系统。