"Random" Circuit Needed.

Apr 01, 2015 66 Replies

It would be less than random because 0000 is still less likely. Better to use a fast counter and latch it before the 154.

Because it's not physical maybe you'd have to jiggle the fast clock with a large resistor to one of the bits, if Spice would have a tendency to make one clock an exact multiple of the other.

Did you notice you're replying to a YEAR OLD post ?:-) ...Jim Thompson

| James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ 85142 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | The touchstone of liberalism is intolerance

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

Geez, gotta figure out why my newsreader (knode) does that! Never noticed it before!

Jon

On the phone app it wasn't so obvious. I don't use it much but it was updated a month ago so I don't know why this thread was near the top.

I figured it was deliberate. Maybe you're not an idiot then, perhaps just a dolt.

Rick C

Hmmm, it seems that knode does this for messages that were posted to more than one newsgroup. It takes a couple clicks to have it select one of the newsgroups. I'll have to watch out for that in the future, thanks!

Jon

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required