Tom Del Rosso wrote:



I was puzzling over how to get 0000, but then it dawned... just use an
8-bit LFSR and use the last 4-bits.
OK, you don't want to just use the last N bits of the LFSR, as they will
shift over VERY predictably. So, if you want to use N bits, you need to
allow the LFSR to advance N clocks and then latch the N parallel bits for
use.

Jon