Ensure all inputs are initialized before starting the clocks. This
avoids any problems which might occur due to everything being
initialized at once.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Instead of calculating clock periods based on the desired frequncy,
specify the periods diretly. This silences the following kind of error
caused by floating point rounding:
Unable to accurately represent 8000.000000000001(sec) with the simulator precision of 1e-12
Fixes: d351291 ("Initial commit")
Signed-off-by: Sean Anderson <seanga2@gmail.com>