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RE: [lpc2000] Re: Code Protection

2004-02-20 by Hugh O'Keeffe

64-pin/128-pin LPC2000 devices with a Boot Loader ID >= 1.6 have flash Read Protection. Ashling users can can check your device's ID using FlashLPC (I think the Philips ISP programmer supports this as well). Code read protection is enabled by programming the flash address location 0x1FC (User flash sector 0) with value 0x87654321. If Read Protection is enabled then the device has to be fully erased (thus disabling Read Protection) before it can be re-programmed. We're currently adding support for this in our tools; further announcements shortly.
BTW, use this information at your own risk. Philips Applications will be making "official" announcements shortly.
HTH
Hugh @ http://www.ashling.com/support/lpc2000/
----- Özgün İleti -----
Kimden : lpc2000@yahoogroups.com
Kime : lpc2000@yahoogroups.com
Gönderme tarihi : 20/02/2004 9:01
Konu : [lpc2000] Re: Code Protection
>One of the big failings of the LPC series is its lack of protection
>for the code programmed into it.

indeed this restrain LPC2000 use so far only for LED blink projects :)
nobody would consider to do something serious without copy protection
anyway it's still great chip for beginners who want to learn ARM
architecture
there seems to be a bugs in the silicon too, but hopefully this all
will be improved, LPC2000 is quite inmature chip after all

>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?

I have my eye on OKI chips:
http://www.open-research.org.uk/ARMuC/index.cgi?ML67Qxxxx
according to this web price range is $6-$10 and:
http://www2.okisemi.com/us/docs/MCUTables-9.html
ML67Q5003 seems perfect replacement for LPC2000 with it's 512K Flash
32K RAM 60Mhz ADC, I2C, UARTs etc.

Best regards
Tsvetan
---
PCB prototypes for $26 at http://run.to/pcb
(http://www.olimex.com/pcb)
Development boards for ARM, AVR, PIC, and MSP430
(http://www.olimex.com/dev)





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