RE: nRF51822 revisions backwards compatible with older soft devices?

Stefan Birnir Sverrisson — Tue, 07 Apr 2015 09:27:24 GMT

As at least an introduction to an answer, take a look at this thread

RE: nRF51822 revisions backwards compatible with older soft devices?

Mike Robbins — Fri, 03 Apr 2015 17:04:20 GMT

Hi Chris, this is an excellent question, and one for which I'm looking forward to hearing the official answer! We too have a product in production with S110 5.2.1. The compatibility matrix PDF suggests that the older silicon is not compatibile with the newest softdevices, and the newest silicon is not compatible with the oldest softdevices. (If true, that's ridiculous and will lead to lots of problems for lots of customers down the road -- no semi maker in their right mind would do that to their customers.) My guess is that Nordic just needs to update the compatibility matrix PDF to indicate that S110 5.2.1 will continue to be supported by newer silicon.