DFU OVER BLE

RE: DFU OVER BLE

user72692 — Mon, 16 May 2022 11:51:33 GMT

[quote user="Vinay S"]can you explain here what is happening. and what i have to change for my bl653dvk board.[/quote]

Let's continue the discussion in DFU-OTA on bl653dvk with external flash and BLE, since this is unrelated to the initial question.

RE: DFU OVER BLE

user106945 — Mon, 16 May 2022 06:17:50 GMT

Hi Simon,

Thanks for the reply.

[quote userid="72692" url="~/f/nordic-q-a/87900/dfu-over-ble/367786#367786"]I would recommend you to first follow DFU over Bluetooth,[/quote]

yes i had followed that and i am able to perform task succusfully.

[quote userid="72692" url="~/f/nordic-q-a/87900/dfu-over-ble/367786#367786"]you'll find the sample Serial DFU using external flash, which shows how to put the secondary slot in external flash. [/quote]

yes, i got struck at this place only, am not able to understand that pm_static.yml file. that for defining the external flash.

here is the code

pm_static.yml (for nrf52840dk_nrf52840)

external_flash:
  address: 0xf4000
  end_address: 0x800000
  region: external_flash
  size: 0x70c000

mcuboot_secondary:
  address: 0x00000
  device: MX25R64
  end_address: 0xf4000
  region: external_flash
  size: 0xf4000

can you explain here what is happening. and what i have to change for my bl653dvk board.

RE: DFU OVER BLE

user72692 — Fri, 13 May 2022 09:41:01 GMT

If you look at the bottom of the guide, you'll find the sample Serial DFU using external flash, which shows how to put the secondary slot in external flash.

I would recommend you to first follow DFU over Bluetooth, then you modify that according to Serial DFU using external flash and you will end up with a sample that performs DFU over BLE and has the secondary slot in external flash.