Implementing DFU OTA for beacon

[arjun]

Hi Nordic,

I am trying to extend DFU feature to my beacon application. Please help me with how to go about it. I went through the given tutorials on DFU/OTA, but I haven't got a clear idea on how to implement it for beacon.

Also I have a doubt..

Is DFU code snippet alone, enough for the beacon application, or is it to necessary to add the device manager snippets too, as given in of the peripheral examples?

[Petter Myhre]

I did a quick test, seems to be working without Device Manager. I just skipped calling dfu_app_dm_appl_instance_set() after removing Device Manager.

Here is my main.c, can be used with the ble_app_hrs dfu example.

The first step is to see add the DFU service and get it to appear in nRF Connect.

You need a trigger. You need a way to tell the application that it should go into bootloader mode. This is typically done by a button, or you can go buttonless by using DFU service. The DFU service can only be accessed in a connection.

You can implement buttonless DFU in a beacon application, but then it must be connectable. A beacon is typically not connectable, only advertises.

[Petter Myhre]

I'm not too familiar with IAR, but it seems you can add the define in the .ewp file

    <option>
      <name>CCDefines</name>
      <state>BLE_DFU_APP_SUPPORT</state>
      <state>BLE_STACK_SUPPORT_REQD</state>
      <state>S132</state>
      <state>BOARD_PCA10040</state>
      ...
      <state>CONFIG_GPIO_AS_PINRESET</state>
      <state>NRF_LOG_USES_UART=1</state>
      <state>SWI_DISABLE0</state>
      <state>SOFTDEVICE_PRESENT</state>
      <state>NRF52</state>
    </option>