nRF9160: nRF Cloud REST FOTA
The REST FOTA sample demonstrates how to use the nRF Cloud REST API to perform Firmware Over-the-Air (FOTA) updates on your device.
The sample supports the following development kits:
When built for an
_ns build target, the sample is configured to compile and run as a non-secure application.
Therefore, it automatically includes Trusted Firmware-M that prepares the required peripherals and secure services to be available for the application.
Full modem FOTA requires development kit version 1.0.1 or higher.
The sample requires an nRF Cloud account.
This sample requires modem firmware v1.3.x or later.
This sample requires the network carrier to provide date and time to the modem. Without a valid date and time, the modem cannot generate JWTs with an expiration time.
If you want to perform an update check immediately, press the button configured by the Kconfig option CONFIG_REST_FOTA_BUTTON_EVT_NUM. This will bypass the wait time specified by the CONFIG_REST_FOTA_JOB_CHECK_RATE_MIN option.
If you have the option CONFIG_REST_FOTA_DO_JITP enabled and you press the button configured by the CONFIG_REST_FOTA_BUTTON_EVT_NUM option when prompted at startup, it will request just-in-time provisioning (JITP) through REST with nRF Cloud. This is useful when initially provisioning and associating a device on nRF Cloud. You only need to do this once for each device.
When you start up your device and have not requested JITP, the sample will ask if FOTA should be enabled in the device’s shadow. Press the button configured by CONFIG_REST_FOTA_BUTTON_EVT_NUM to perform the shadow update. Depending on how you provisioned your device with nRF Cloud, this step might not be needed. You only need to do this once for each device.
See Configuring your application for information about how to permanently or temporarily change the configuration.
Check and configure the following configuration options for the sample:
- CONFIG_REST_FOTA_JOB_CHECK_RATE_MIN - Update check rate
This configuration option defines how often the sample checks for FOTA updates.
- CONFIG_REST_FOTA_DL_TIMEOUT_MIN - Download timeout value
This configuration option defines how long to wait for a download to complete.
- CONFIG_REST_FOTA_ENABLE_LED - Enable LED
This configuration option defines if the LED will be used to indicate connection to the LTE network.
- CONFIG_REST_FOTA_LED_NUM - Enable LED
This configuration option defines if the LED is to be used.
- CONFIG_REST_FOTA_DO_JITP - Enable prompt to perform JITP via REST
This configuration option defines if the application will prompt the user for just-in-time provisioning on startup.
This sample can be found under
samples/nrf9160/nrf_cloud_rest_fota in the nRF Connect SDK folder structure.
When built as a non-secure firmware image for the
_ns build target, the sample automatically includes the Trusted Firmware-M (TF-M).
To build the sample with Visual Studio Code, follow the steps listed on the Building nRF Connect SDK application quick guide page in the nRF Connect for VS Code extension documentation. See Building and programming an application for other building and programming scenarios and Testing and debugging an application for general information about testing and debugging in the nRF Connect SDK.
The configuration file for this sample is located in
See Configuring your application for information on how to configure the parameters.
To create a FOTA test version of this sample, add the following parameter to your build command:
To enable full modem FOTA, add the following parameter to your build command:
This sample uses the following nRF Connect SDK libraries:
In addition, it uses the following secure firmware component: