Loading data into Application Data block during programming

RE: Loading data into Application Data block during programming

Einar Thorsrud — Wed, 12 Sep 2018 06:43:51 GMT

Hi,

If you have a binary file then you might want to use J-Link Commander instead, as that will let you take a binary blob and specify which address you want to write it to using the "loadbin" command. I am sure there are other tools from other vendors as well, but at least that is one way to do it. (Remember that you still need to reserve the flash space so that it is not overwritten by either the bootloader during DFU or FDS as described in my previous post.)

RE: Loading data into Application Data block during programming

bgarrood — Tue, 11 Sep 2018 15:14:51 GMT

hello. Thank you for your reply. I need to program quite a large block of data, about 4kb, into the application data block of the flash memory. "nrfjprog --memwr" programs one byte at a time as far as I can tell. Is there a way to program a whole binary file into flash memory? Thank you.

RE: Loading data into Application Data block during programming

Einar Thorsrud — Fri, 31 Aug 2018 08:12:04 GMT

Hi Barney,

You have several options to code data into the flash during production. You can for example write the data using "nrfjprog --memwr". The only thing you need to make sure is that the flash page you write to is free. So no other hex files should be programmed there, and it should not be used for other flash storage (such as FDS which is for instance used by the Peer manager to store BLE bonding information). If you use a bootloader you need to set DFU_APP_DATA_RESERVED in nrf_dfu_types.h accordingly, so that the bootloader does not overwrite your data during a DFU upgrade.