[sdiy] Digital noise sources

harrybissell at wowway.com harrybissell at wowway.com
Fri Jun 13 19:30:25 CEST 2008


There is a disallowed state (all 1's or all 0's) which must be avoided.
Hardware based units usually have a way of assuring that ~something~
gets into the register

H^) harry


On Fri, 13 Jun 2008 09:41:54 -0700, Tom Arnold wrote
> Something else I've been pondering.
> 
> 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?
> 
> -- 
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