[sdiy] Digital noise sources

[Louis van Dompselaar]

I always thought that the reset circuit would keep the input 0 or 1 for
a random-ish length.

> I noticed in Tom Wiltshire's noise generator PIC that he preloads the shift
> registers with some random data.  I'm curious about something though...  In
> a "normal" logic based noise source, are we depending on the power-on state
> of the shift register to be random, or are we just loading it from 0 with
> the pattern generated from the XOR's?