[time-nuts] Re: Seeking feedback on a HW Architecture for a DIY two channel timer/counter and frequency reference

[Hal Murray]

Erik Kaashoek said:
> An architecture level overview can be found here:
> http://athome.kaashoek.com/time-nuts/Architecture_2.JPG 

Metastability is one of my hot buttons.  When I see a sketch like that, I 
expect to see dotted lines splitting clock domains.

Your MCU will probably have an extra flipflop on the input channels for a 
synchronizer.  That adds delay which may or may not be significant.


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