UICR.BOOTLOADERADDR writing specifics

RE: UICR.BOOTLOADERADDR writing specifics

Elkana — Thu, 20 Sep 2018 05:16:28 GMT

Currently PE-Micro doesn't support NRF52840 at all (not to mention UICR).
Please forward it to the relevant team in NordicSemi.

www.pemicro.com/.../index.cfm

RE: UICR.BOOTLOADERADDR writing specifics

Elkana — Thu, 20 Sep 2018 05:07:18 GMT

In this case, Nordic can write a new flash loader (or board descriptor) to allow IAR writing to these addresses.

You can have a look in http://supp.iar.com/FilesPublic/UPDINFO/004916/arm/doc/FlashLoaderGuide.pdf.
On page 13 there is an example how to define more than 1 flash address spaces.

RE: UICR.BOOTLOADERADDR writing specifics

Einar Thorsrud — Tue, 18 Sep 2018 12:00:40 GMT

Hi Elkana,

a) The root cause of this issue is that the flash algorithm in IAR does not know that the UICR address range is flash memory, therefore it will not write to it.

b) I do not have any experience with the PE Micro Cyclone Pro, but I would expect that if it does not work out of the box there should be some way to configure it so that it will be able to program flash in the UICR memory range as well.

c) It is just a matter of configuring the tools properly. The UICR is just normal flash, but you need to tell it to the programming tool.

Best regards,

Einar