How are the DEVICEID, DEVICEADDR, ER, & IR values set in the FICR?

RE: How are the DEVICEID, DEVICEADDR, ER, & IR values set in the FICR?

awneil — Fri, 12 Jul 2019 08:42:37 GMT

[quote userid="3665" url="~/f/nordic-q-a/7512/how-are-the-deviceid-deviceaddr-er-ir-values-set-in-the-ficr/26721"]I had seen several comments in the forum that said DEVICEID and DEVICEADDR were "random" or "unique", and it wasn't clear precisely what was meant.[/quote]

The Product Specifications incorrectly state that the DEVICEID is "unique".

https://devzone.nordicsemi.com/f/nordic-q-a/49664/deviceid-is-unique---but-is-it-random/198061#198061

RE: How are the DEVICEID, DEVICEADDR, ER, & IR values set in the FICR?

Andrew Fernandes — Tue, 09 Jun 2015 20:20:39 GMT

That's awesome, Aryan, thank you!

I had seen several comments in the forum that said DEVICEID and DEVICEADDR were "random" or "unique", and it wasn't clear precisely what was meant.

The phrase "FIPS-compliant random" tells me very precisely how they are generated. Cheers!

RE: How are the DEVICEID, DEVICEADDR, ER, & IR values set in the FICR?

Susheel Nuguru — Tue, 09 Jun 2015 07:55:39 GMT

DEVICEID, DEVICEADDR , ER and IR are randomly generated (FIPS compliant) at time of production. devzone.nordicsemi.com/.../ devzone.nordicsemi.com/.../

DEVICEADDRTYPE is having its lowest bit as '1' set to random. You cannot change these values.