Can I erase UICR in ble app?

RE: Can I erase UICR in ble app?

Vidar Berg — Thu, 04 Aug 2016 06:59:41 GMT

update: nrf52 has a different memory protection implementation and allows the UICR section to be erased at runtime.

RE: Can I erase UICR in ble app?

Jose Xavier — Tue, 12 May 2015 14:21:05 GMT

So can't I use the customer registers? I mean use it to save user data?

RE: Can I erase UICR in ble app?

Moloch — Tue, 17 Mar 2015 02:36:46 GMT

I received an answer on Nordic's support portal. To erase the UICR, you must erase all flash. Nordic reasons that if the UICR can be erased while running then the readback protection configured in the UICR can be defeated.

RE: Can I erase UICR in ble app?

Moloch — Wed, 11 Mar 2015 00:25:10 GMT

I have the same question. I'm using a mix of rev 2 and rev 3 nRF51822s (XXAA). Using NRF_NVMC->ERASEUICR = 1 doesn't do anything. It's critical that I reset the BOOTLOADERADDR field, the Nordic MBR must not execute my bootloader while I update it if the system is reset accidentally.

RE: Can I erase UICR in ble app?

Susheel Nuguru — Fri, 06 Mar 2015 11:23:51 GMT

Edited

Yes, UICR registers can only be erased by ERASEALL.