> -----Original Message-----
> From: Sid Weaver [SMTP:NEWZED@AOL.COM]
> Sent: Monday, August 12, 2002 4:24 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: Random sequence
>=20
> In a message dated 08/12/2002 11:19:23 Eastern Daylight Time,=20
> ilinux@DKGOMEZ.COM writes:
>=20
>=20
> >  Is there a way to a random sequence from either external input, or =
from
> > the programming itself.  I=B9m doing led dies, and the method used =
just
> > flashes through the sequence, until the user stops pushing the =
button.
> I=B9d
> > rather just have them push it once, no long period to hold, to =
start
> > sequence, and then have it use a random source to determine the =
number
> > instead.
> >=20
> > Dave  Gomez
> >=20
>=20
> Hello, Dave
>=20
> Just write
>=20
> start
> random x
> do your flashing thing
> goto start
>=20
> if you make x a byte you get random numbers from1 to 1024.
>=20
> Sid
>=20
Well, I don't know what HLL you are using, or how you manage to fit =
1024 in
a single byte :0)=20

Truly random numbers are not easy to generate, and the topic has been
discussed countless times on the list.  If you want some numbers that =
simply
appear to be random, you can quite easily make a pseudo-random number
generator in a PIC.  Take a look at
http://www.piclist.com/techref/microchip/rand8bit.htm for some =
examples.

Regards

Mike

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body