| 基于PC104总线和CPLD的测频模件设计 |
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| 引用本文： | 刘国华,何华锋,田鹏飞,王林.基于PC104总线和CPLD的测频模件设计[J].现代电子技术,2010,33(2):86-89. |
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| 作者姓名： | 刘国华 何华锋 田鹏飞 王林 |
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| 作者单位： | 1. 第二炮兵工程学院,陕西,西安,710025
2. 第二炮兵驻孝感地区军事代表室,湖北,孝感,432100 |
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| 基金项目： | 国家自然科学基金重点课题资助项目 |
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| 摘 要： | 根据某测试系统的需要，设计基于PC104总线和CPLD的高精度测频模件，采用多周期同步测频法实现对所测频段的等精度测量。设计了该测频模件的硬件电路，并给出用CPLD实现数字频率计的详细VHDL源代码。采用原理图的方式编写PC104总线的接口逻辑，并利用Max＋Plus Ⅱ软件进行仿真。结果显示频率计及接口逻辑均可正确工作。实际应用表明，该测频模件具有精度高，可靠、稳定等优点。
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| 关 键 词： | PC104 CPLD 多周期同步测频 VHDL |
Design of Frequency Measuring Module Based on PC104 and CPLD |
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| LIU Guohua,HE Huafeng,TIAN Pengfei,WANG Lin.Design of Frequency Measuring Module Based on PC104 and CPLD[J].Modern Electronic Technique,2010,33(2):86-89. |
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| Authors: | LIU Guohua HE Huafeng TIAN Pengfei WANG Lin |
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| Affiliation: | 1. The Second Artillery Engineering College,Xi＇an,710025 ,China; 2. The Second Artillery Military Representative Office in the Area of Xiaogan,Xiaogan,432100,China) |
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| Abstract: | According to the need of some test system,a high-accuracy frequency measuring module is designed based on PC104 and CPLD.A method of synchronous multi-period frequency measurement is used to achieve the equal precision measure to the tested frequency channel.The hardware circuit of the frequency measuring module is designed.And the detailed VHDL source code to achieve digital frequency using CPLD is given.The interface logic of PC104 bus is compiled using the way of schematic diagram,and the emulation is do... |
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| Keywords: | PC104 CPLD VHDL |
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