Lpc2000

I put our serial number in the startup assembler file at a fixed address
(soon after the interrupt table).  That way we can easily modify the hex
file with the new serial number before we flash a part.

-----Original Message-----
From: edsonghidini [mailto:edson@...] 
Sent: Friday, November 12, 2004 9:57 AM
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: Unique ID



It will really be better. Do you have some suggestion of which flash to use?

--- In lpc2000@yahoogroups.com, "ggindele" <ggindele@y...> wrote:
> 
> Wouldn't be a flash stored unique key would be safer for the
password
> encryption? There's a little inconvenience making every flash image 
> randomized and the flash read protected, but can be done and cost 
> could be lower than the DS2401 for volume. And the LPC-DS2401
boundary
> is not protected in any way, the number can be sniffed, duplicated
and
> so on.
> 
> --- In lpc2000@yahoogroups.com, Charles Manning <manningc2@a...>
wrote:
> > The device Id is fixed per-device type according to
> "part_id-table.pdf" in
> > the files section.
> > 
> > If you want a small, very low cost, unique per-unit id, I'd
consider
> the
> > Dallas  DS24011-wire silicon serial number. 
> > http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2903
> > 
> > -- CHarles
> > 
> > 
> > 
> > On Wednesday 10 November 2004 01:40, you wrote:
> > > Hello,
> > >
> > > I would like to know if the device identification returned by
IDCODE
> > > instruction is unique. I need to get one key to encrypt one
password
> > > that can't be decrypted in another LPCxxxx. How could I do
that?
> > > Thanks
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >





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