| 基于FPGA的任意数值分频器的设计 |
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| 引用本文： | 周殿凤,康素成,王俊华.基于FPGA的任意数值分频器的设计[J].电子工程师,2010,36(2):59-61. |
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| 作者姓名： | 周殿凤 康素成 王俊华 |
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| 作者单位： | 盐城师范学院物理科学与电子技术学院,江苏省盐城市,224002 |
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| 基金项目： | 江苏省高校自然科学基金资助项目，盐城师范学院校级基金资助项目 |
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| 摘 要： | 介绍了基于FPGA的任意分频系数的分频器的设计，该分频器能实现分频系数和占空比均可以调节的3类分频：整数分频、小数分频和分数分频。所有分频均通过VHDL语言进行了编译并且给出了仿真图。本设计中的分频器没有竞争冒险，可移植性强，占用的FPGA资源少。本设计在Altera公司的CycloneⅡ系列EP2C35型FPGA芯片中完全可实现，结果表明设计是正确和可行的。由于分频器应用非常广泛，故本设计具有很强的实用价值。
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| 关 键 词： | FPGA VHDL 分频器 |
Design of Universal Frequency Divider Based on FPGA |
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| ZHOU Dianfeng,KANG Sucheng,WANG Junhua.Design of Universal Frequency Divider Based on FPGA[J].Electronic Engineer,2010,36(2):59-61. |
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| Authors: | ZHOU Dianfeng KANG Sucheng WANG Junhua |
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| Affiliation: | ( School of Physical Science and Electronic Technique, Yancheng Normal University, Yancheng 224002, China) |
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| Abstract: | The design of any coefficient frequency divider based on FPGA is introduced in this paper. The frequency divider which can realize different duty cycle and random coefficient is studied in this paper. It includes integer frequency divider and decimal frequency divider and fraction frequency divider. Depending on the VHDL realization of the algorithm the design has high design flexibility. And their waveforms are given too. The divider has no signal competition and uses less LE. What＇s more, it can be easily transplanted. Experiments and hardware test data on Ahera EP2C35 chip of Cyclone Ⅱ series are given to show that the design is successful. Because frequency divider has wide applications, the design is very practical. |
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| Keywords: | FPGA VHDL |
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