Can the NRFFW / NRFHW registers be used for customer config on a custom PCB with custom FW?https://devzone.nordicsemi.com/f/nordic-q-a/14523/can-the-nrffw-nrfhw-registers-be-used-for-customer-config-on-a-custom-pcb-with-custom-fwIn table 32 on page 25 of the NRF51 Reference Manual, there are a bunch of registers with the description &quot;Reserved for Nordic firmware design&quot; or &quot;Reserved or Nordic hardware design&quot;. Can those registers be used for customer configuration if a NRF51en-USTelligent Community 13Thu, 16 Jun 2016 12:24:19 GMTRE: Can the NRFFW / NRFHW registers be used for customer config on a custom PCB with custom FW?https://devzone.nordicsemi.com/thread/55477?ContentTypeID=1Thu, 16 Jun 2016 12:24:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d6b3cc5b-23ec-411c-879d-7b37e22c580eHung Bui<p>Hi Curtis,</p> <p>Those registers can be used but it&#39;s not recommended. We may use some of them in our SDk/Softdevice in the future.</p> <p>If the customer want to store large amount of data, they can use a normal flash page for the purpose. The only difference between a normal flash page and the UICR is that the UICR can&#39;t be rewritten without a full erase of the chip.</p><div style="clear:both;"></div>