Lpc2000

Hi Brian,

I'm of the same conviction wrt code protection.
My FAE told me late last year that protected parts *supposedly*
would be out middle 2004, I'm certainly waiting.

I had been waiting for an ARM part that had reasonalbly low pin count,
high amount of RAM, low power and at least 2 UARTS/SPI/PWM + decent timers.

The LPC2100 seemed perfect, but the lack of code protection was a cold
shower.
What is the big deal for vendors ?
I would have thought that code protection is paramount.

Even the MSP430 is woeful wrt protection. The idea that you have to provide
full
JTAG access on production boards,only to destroy it, IMO is plain dumb.

The nicest scheme I've seen is with Cygnal's C8051 parts.
You can partially protect the Flash, and eg. leave the upper part accessible
to an
OEM so they can call your embedded libraries, but they CANNOT read/write the
Flash that you specify as secure (you program in a threshold address, and
below
that address is protected).
You erase the part and all the ones set the threshold back to Top Of Flash.

Why can't we get that on MSP430/LPC2000 ???

B regards,
Kris



----- Original Message -----
From: "Brian C. Lane" <brian@...>
To: <lpc2000@yahoogroups.com>
Sent: Friday, February 20, 2004 3:24 AM
Subject: [lpc2000] Code Protection


> One of the big failings of the LPC series is its lack of protection for
> the code programmed into it. MSP430 has the jtag fuse that can be blown.
> I've seen rumors that there is something in the works for later this
> year, but that's doesn't help us now.
>
> Does anyone ave any suggestions for an ARM based, low power, large flash
> (128k minimum) with a decent pin count that has som kind of code
> protection for its flash?
>
> Thanks,
>
> Brian
>
> --
> -----------------------------------------------------
> Brian C. Lane (W7BCL)                      Programmer
> www.shinemicro.com   RF, DSP & Microcontroller Design
>
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