基于STC89C51的等精度频率计研制 |
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引用本文: | 朱彬,孙海山. 基于STC89C51的等精度频率计研制[J]. 中国仪器仪表, 2007, 0(8): 46-48,62 |
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作者姓名: | 朱彬 孙海山 |
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作者单位: | 1. 达州职业技术学院机械电子技术系,四川达州,635000 2. 富士康科技集团,广东深圳,518109 |
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摘 要: | 介绍了用单片机STC89C51实现智能频率测量的方法,采用硬件逻辑与软件指令巧妙配合的智能阐门控制方式,可实现0~100 MHz范围内等精度测量功能,精度可达10-7.同时系统采用新器件ZLG7290扩展I/O端口,实现键盘控制及数码管显示.
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关 键 词: | 等精度 频率计 |
Development of Equal Precision Cymometer Based on STC89C51 |
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Abstract: | Intelligent frequency measurement methods achieved by STC89C51 single-chip are introduced, adopt the intelligent strobe controlling way by means of the cooperation of hardware logic and instructions. This product whose precision is 10-7 can realize the functions of equal prec-ision measurement in the range of 0-170MHz.A new device ZLG7290 is used to extended I/O port in this system, keyboard control and LED display are realized. |
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Keywords: | ZLG7290 I2C |
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