On Thu, 16 Oct 1997, Mike Harrison wrote:

> How do you generate a random number? - if all PICs are identical, any
> of the normal algorithms will generate the same number!
>  The only way I can think of to do it would be to time the (long
> prescaled) WDT to a few uS (not too hard), and hope the difference
> between the RC WDT osc characteristics due to temp/voltage are
> sufficiently different.

        You can get OTP parts from Microchip that have individual serial
numbers burned into them. You could initialize the PRNGs off of a
combination of those and some sort of system timer, perhaps?

        Pierce Nichols

"I have a work order for the immediate demolition of your reality tunnel."

        -Bob, RAW Construction Corp.

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