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burn-initial-firmware-nordic.md

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Install the initial version of firmware on the Nordic nRF52840 DK

This guide is written with the assumption that you have already performed the steps in Getting started with the Nordic nRF52840-DK and Over-the-Air Update Prerequisites. Before you attempt an OTA update, you might want to run the MQTT demo project described in Getting Started with FreeRTOS to ensure that your board and toolchain are set up correctly.

To flash an initial factory image to the board

  1. Open freertos/vendors/nordic/boards/nrf52840-dk/aws_demos/config_files/aws_demo_config.h.

  2. Replace #define CONFIG_CORE_MQTT_MUTUAL_AUTH_DEMO_ENABLED with CONFIG_OTA_MQTT_UPDATE_DEMO_ENABLED or CONFIG_OTA_HTTP_UPDATE_DEMO_ENABLED.

  3. With the OTA Update demo selected, follow the same steps outlined in Getting started with the Nordic nRF52840-DK to build and flash the image.

    You should see output similar to the following.

    9 1285 [OTA Task] [prvSubscribeToJobNotificationTopics] OK: $aws/things/your-thing-name/jobs/notify-next
10 1286 [OTA Task] [OTA_CheckForUpdate] Request #0
11 1289 [OTA Task] [prvParseJSONbyModel] Extracted parameter [ clientToken: 0:your-thing-name ]
12 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: execution
13 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: jobId
14 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: jobDocument
15 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: afr_ota
16 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: streamname
17 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: files
18 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: filepath
19 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: filesize
20 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: fileid
21 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: certfile
22 1289 [OTA Task] [prvParseJSONbyModel] parameter not present: sig-sha256-ecdsa
23 1289 [OTA Task] [prvParseJobDoc] Ignoring job without ID.
24 1289 [OTA Task] [prvOTA_Close] Context->0x3ffbb4a8
25 1290 [OTA] [OTA_AgentInit] Ready.
26 1390 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
27 1490 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
28 1590 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0
29 1690 [OTA] State: Ready Received: 1 Queued: 1 Processed: 1 Dropped: 0

    Your board is now listening for OTA updates.