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01-16-2019, 01:27 PM
OK, thanks a lot. It's really knowledge of 7th grade. It's calculated as below:
cycles = 30ms / frequency
0.03 / (1/697) = 21
0.03 / (1/770) = 23
........
0.03 / (1/1477)=44
3 replies | 135 view(s)
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01-15-2019, 01:28 PM
Hi,
I'm writing a DTMF decoding program now. And I use "DialTone_7segment" in the example as a reference. But I don't know how to calculate the "cycles" as the parameter of frequency() function. Ex:
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3 replies | 135 view(s)