Xenon firmware on a Argon/Boron

[ScruffR]

For Gen1 & Gen2 this question was (somewhat) answered here

Is it possible to change Device Id?

The device IDs are generated based on the hardware IDs of the STM32 microcontroller and cannot be changed. Each ID is associated with an account with a public/private key pair along with access tokens. So by simply knowing someone’s device ID will not give you access to their Core. We are currently thinking about using names instead/in-additon to the device IDs to make things easier. Hope this helps!

Device ID Question - Where is the device ID stored? And what are the priv/pub keys for?

Hey Guys, I just have one quick question, how is the Device ID stored on the Photon? Would it fused in via a OTP region? After completely erasing the entire Photon, including the boot loader, then getting it back up again, it still remembered my device ID. One more question, what are the pub/priv keypair used for? As I understand there are 3 keys? The device priv and pub, and the server’s pubkey, I assume the server’s pubkey is for SSLing communication to and from the Particle Servers?

and for Gen3 it'll be not too different.

And no, you can't clone a device ID as it is a unique number directly related to a hardwired ID in the silicon which the manufacurer of the controllers provides to Particle in order to provision their devices. Any attempt to cicrumvent that (if at all possible) won't be supported by this community.

BTW

@kenmacd

I’m not yet sure why I couldn’t flash a xenon version to an argon

For starters, there are some not-exposed but internally used pins that will be mapped differently.
e.g.

ANTSW1
ANTSW2
BATT
PWR
CHG
NFC_PIN1
NFC_PIN2
TX1
RX1

While the port/pin mappings seem to be the same (apart from the ones only available either on Argon or Xenon) the internal numbers don't match up potentially causing incompatibilities with application code.
See https://github.com/particle-iot/device-os/blob/v0.9.0-rc.3/hal/inc/pinmap_hal.h#L128