DCF77 Phase Decoder and Clock

Project description:

Phase decoding of DCF77 time signal is more complicated than decoding the amplitude but gets better accuracy and, more important, is more immune to noise.

My solution is adaptation of Steve Marchant PIC project, but translated to STM32 Nucleo boards.

Document in PDF format MyDCF77.pdf isn’t complete just now, video dcf77.mp4 shows the clock in work.

Here is a photo of ferrite antenna and pre-amplifiler: