LPCXpresso IDEのトピックRe: Reprogramming LPC3154 at LPCxpresso

Reprogramming LPC3154 at LPCxpresso

lpcware — Thu, 16 Jun 2016 02:18:10 GMT

Content originally posted in LPCWare by BarsMonster on Thu Mar 10 11:07:58 MST 2011
I wonder, if that's possible to load lpc3154 at LPCExpresso board (chip on the host side) with custom firmware? (Provided that re-soldering it to custom board is not a problem)

I see that chip supports secure boot, so if AES key was programmed, it is impossible without knowing the key? Or are there any options to boot lpc3154 without knowing the key? (SD, flash, USB, JTAG... Anything?) Or this chip was chosen specifically so that we cannot do anything with it except loading signed firmware?

Does anyone know if key was indeed loaded?

Buying lpc3154 separately promising some nasty 6w+ wait time + not very funny price in small quantity... Playing with this mighty uC would be nice additional experience after M0 ...

Re: Reprogramming LPC3154 at LPCxpresso

lpcware — Thu, 16 Jun 2016 02:18:11 GMT

Content originally posted in LPCWare by domen on Fri Mar 11 00:08:08 MST 2011
I too would be very interested about any progress on that front.

The datasheet says non-secure boot through uart/usb is possible if AES is not programmed. Since the firmwares the applications uploads (ie. LPCXpressoWIN.enc) are encoded, I assume AES is programmed.

So, I'm waiting for someone to point out something contrary to this, or to provide the key :-)

Re: Reprogramming LPC3154 at LPCxpresso

lpcware — Thu, 16 Jun 2016 02:18:11 GMT

Content originally posted in LPCWare by whitecoe on Fri Mar 11 06:46:09 MST 2011
Think this statement from NXP_USA basically answers your question as to whether the 3154 is user accessible....

http://knowledgebase.nxp.com/showpost.php?p=36&postcount=3

Quote:
The LPC-LINK boards distributed embedded in LPCXpresso, can only load DFU firmware from our LPCXpresso IDE partner Code Red