Simple frequency counter, run without modification on Nucleo board, Input pin PA0, PA1, PB3. Only for STM32F4 series (Tested on Nucleo-F401RE,-F411RE and F446RE)

Dependents:   Frequency_Counter_for_STM32F4xx

see /users/kenjiArai/notebook/frequency-counters/

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Files at revision 4:3c589d2aad5c

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freq_counter.cpp 6442 Revisions Annotate
freq_counter.h 1897 Revisions Annotate