nRF52832 Function (DFU)

RE: nRF52832 Function (DFU)

Sigurd — Tue, 02 Apr 2019 13:27:03 GMT

A bond has a variable length (~100 bytes, with 1 CCCD it can be ~ 152 bytes) based on what type of connection, central settings, etc.

If FDS is configured to use 3 pages of flash (2 x 4K for data storage, and 1 x 4K for swap), then you have a total of 8 kBytes (8192 bytes) of storage. This can however be configured in your sdk_config.h to match your needs.

RE: nRF52832 Function (DFU)

CFF.K — Tue, 02 Apr 2019 07:12:17 GMT

Thanks for your reply.

I solve finish these question except 1.

I know the maximum number of bonds depends on FDS. but I still don't how to calculate the maximum number of bonds for my customer?

RE: nRF52832 Function (DFU)

Sigurd — Wed, 20 Mar 2019 15:23:38 GMT

Hi,

1) The maximum number of bonds is limited by the available flash space to store the bond data. The amount of space reserved for storing bond data is limited by FDS_VIRTUAL_PAGES. See this page.

2) Yes, take a look at the buttonless DFU example. See this link. This post could also be helpful.

3) nrfgo studio is deprecated, I recommend nRF Connect and the programmer app. See this link.

[quote userid="17496" url="~/f/nordic-q-a/44996/nrf52832-function-dfu"]but my code still in the bootload. how leave this situation?[/quote]

It could be that you forgot the settings page. You can create it like this:

nrfutil settings generate --family NRF52 --application my_app.hex --application-version 0 --bootloader-version 0 --bl-settings-version 1 settings.hex

4) Yes, you can consider it unique. See this post.