Kenji Arai / Mbed 2 deprecated FreqCntr_GPS1PPS_F746F4xx_w_recipro

Very simple but enough accuracy "Frequency Counter". Using GPS 1PPS signal for 1sec gate. CPU is F746, F446 and F411.

Dependencies:   fc_GPS1PPS_f746_f4xx iSerial mbed

Please refer following.
/users/kenjiArai/notebook/frequency-counters/

Concept block are follows.
F746
/media/uploads/kenjiArai/block_diagram_fc_f746_wo_oven.pdf
F411&F446
/media/uploads/kenjiArai/block_diagram_fc_f411_wo_oven.pdf
Hardware Circuit(common F746,F446 and F411)
/media/uploads/kenjiArai/fc_f746ng_circuit.pdf
/media/uploads/kenjiArai/f746_fc_1.jpg

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