Description: Frequency measurement, the cycle frequency of the measurement method, but are calculated indirectly by measuring the frequency. In this paper, compared with the current application of a wide range of MCS-51 series single-chip frequency of the periodic wave measurements, and in digital form through the LED to visually indicate the frequency, the realization of the intelligent measurement, indirectly saved the trouble of calculating the frequency and错误. Article of its measuring principle, design and realization of an explanation, and the error analysis
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- [frequencymeter] - frequency meter code for C51
- [plj] - This procedure is based on measuring the
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频率测量.doc
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