| 基于51单片机软核的数字频率计设计 |
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| 引用本文： | 汤书森,李欣,吴琅,尹岑.基于51单片机软核的数字频率计设计[J].单片机与嵌入式系统应用,2016(4):67-69. |
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| 作者姓名： | 汤书森 李欣 吴琅 尹岑 |
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| 作者单位： | 兰州大学 信息科学与工程学院,兰州,730000 |
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| 摘 要： | 以FPGA和51单片机软核为核心，设计了一个数字频率计，实现了频率、周期、时间间隔和占空比的测量。系统主要包含3个部分：整形放大电路、FPGA门控处理电路和显示电路，整形放大电路采用 TI高速比较器 TLV3051来实现整形放大，用FPGA搭建数字电路来测量各参数，通过LCD来显示所测参数的值。
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| 关 键 词： | FPGA 数字频率计 51单片机软核 |
Digital Frequency Meter Based on 51 Microcontroller Soft Core |
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| Tang Shusen;Li Xin;Wu Lang;Yin Cen.Digital Frequency Meter Based on 51 Microcontroller Soft Core[J].Microcontrollers & Embedded Systems,2016(4):67-69. |
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| Authors: | Tang Shusen;Li Xin;Wu Lang;Yin Cen |
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| Affiliation: | Tang Shusen;Li Xin;Wu Lang;Yin Cen;College of Information Science and Engineering,Lanzhou University; |
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| Abstract: | In the paper ,a digital frequency meter is designed which is based on FPGA and 51 microcontroller softcore .The design achieves the frequency measurement ,period measurement ,time interval measurement and duty cycle measurement .The system mainly consists of three main parts:the shaping amplifier circuit ,FPGA gating processing circuit and display circuit .TI TLV3051 is used to achieve shaping amplification ,FPGA is used to build digital circuit to measure various parameters ,and the LCD is used to display the values of the meas‐ured parameters . |
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| Keywords: | FPGA digital frequency meter 51 microcontroller soft core |
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