That is hard to do since Microchip tries so hard to make their chips
repeatable...

Maybe use a few LSBs from a very high resolution temperature
measurement?  Can you use a human element, such as a high resolution
measurement of how long they held the START button down?  Good noise
diode circuits are usually complex, as are Gieger tube circuits.

It is hard to find something random to start with.

Sherpa Doug

> -----Original Message-----
> From: Michael Mennecier [mailto:michael.mennecier@LIBERTYSURF.FR]
> Sent: Wednesday, November 28, 2001 5:26 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: Power On Reset
>=20
>=20
> Thank you for your responses.
>=20
> But i forgot to say that i want to initialize a random number=20
> generator.
> That's why i need a diff=E9rent random value for each POR on P12C508A.
>=20
> ----- Original Message -----
> > On Tue, Nov 27, 2001 at 11:26:15AM +0100, Michael Mennecier wrote:
> > > Hello.
> > >
> > > This is my first post on PICList.
> > >
> > > On P12C508A, datasheet says that gprs are unknown on POR.=20
> Is it really
> true
> > > or there is 99% of chance that it will be 0.
>=20
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>=20
>=20

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