Application Version from Bootloader Unavailable through recommended approach

RE: Application Version from Bootloader Unavailable through recommended approach

snoopy20 — Sat, 18 Jul 2020 18:07:26 GMT

I've always used 16.0.

Application version for dfu = --application-version 200

I redid and checked again...

0x0002F000: 3CDED09E 00000002 000000C8 00000000

So it is working but the code I lifted from another example isn't. I'll use memcpy instead!

RE: Application Version from Bootloader Unavailable through recommended approach

Sigurd — Fri, 17 Jul 2020 13:45:00 GMT

[quote userid="89627" url="~/f/nordic-q-a/63642/application-version-from-bootloader-unavailable-through-recommended-approach/259525"]I had a look at the raw memory with

nrfjprog --memrd 0x0002F000 --n 4048 -f NRF52

And can't see the number.[/quote]

Was it all 0xFFFFFFFF, or was it only the app_version you didn't see ?

What's the content at address 0x00000FFC ?

Have you been using SDK 16.0 all time, or did you update to SDK 16.0 recently ?

RE: Application Version from Bootloader Unavailable through recommended approach

snoopy20 — Mon, 13 Jul 2020 21:09:15 GMT

Can't recall, something like 3010001. It is working though as it errored on an attempt to downgrade.

I'm using the same code as that already, it reports as zero. Plus I read using nrfjprog and it shows as zero.

static nrf_dfu_settings_t *p_dfu_settings = (nrf_dfu_settings_t *) FLASH_BOOTLOADERSETTINGS_START;

device.firmware.version = p_dfu_settings->app_version;

RE: Application Version from Bootloader Unavailable through recommended approach

Sigurd — Mon, 13 Jul 2020 20:56:09 GMT

What app_version did you set when you generated the DFU package with nrfutil?

You can try to read it from your application code like this:

     nrf_dfu_settings_t my_dfu_settings;
     memcpy(&my_dfu_settings, (uint32_t *)BOOTLOADER_SETTINGS_ADDRESS, sizeof(nrf_dfu_settings_t)); 

     uint32_t my_app_version = my_dfu_settings.app_version;

RE: Application Version from Bootloader Unavailable through recommended approach

snoopy20 — Mon, 13 Jul 2020 14:39:44 GMT

nRF5SDK160098a08e2

I thought UICR was to be thought as of a one time flash, but a updating software version held in it? Anyhow, it's not there but it is being saved, somewhere...

RE: Application Version from Bootloader Unavailable through recommended approach

Sigurd — Mon, 13 Jul 2020 12:32:10 GMT

[quote user="snoopy20"]Has it moved into mbr settings?[/quote]

What SDK version are you using ? It was moved into MBR in SDK 15.3, but back to UICR in SDK 16

RE: Application Version from Bootloader Unavailable through recommended approach

snoopy20 — Fri, 10 Jul 2020 17:59:59 GMT

I had a look at the raw memory with

nrfjprog --memrd 0x0002F000 --n 4048 -f NRF52

And can't see the number. Has it moved into mbr settings?