Reading Serial Number of Flashless LPC43xx devices

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by twhittam on Fri Nov 29 09:46:58 MST 2013
I want to be able to uniquely identify individual LPC4330 chips.

On LPC43xx devices with onboard FLASH, command 58 of the IAP can be used to read the device serial number. Is there a way I can read this serial number on a Flashless part?

I know from another post that addresses 0x40045000 and 0x40045000C hold values that will identify the device type. I can also see that address 0x40045004 holds a 32-bit value that seems to remain constant through a power cycle but is different from unit to unit.

Could it be that the 4 words returned by IAP command 58 are the 4, 32-bit values starting at address 0x40045000?

Thanks for your help.