CC2651R3: Help Needed: Configuring Notifications in CC2651R3

aarohi shirbavikar

Prodigy 100 points

Part Number: CC2651R3

Tool/software:

Hello TI Team,

I am currently working on a project using the CC2651R3,details mention below.

Device: CC2651R3.
Development Environment: Code Composer Studio (CCS) Version 12.
SDK Version:simplelink_cc13xx_cc26xx_sdk_7_41_00_17.

I need assistance in configuring a characteristic with notification capabilities. Specifically, I want to implement the following:

Create a characteristic that supports notifications.
Send a default notification to the BLE central device when it subscribes to the characteristic.
Ensure that the notification is automatically displayed in the central's UI (e.g., in a down box) upon subscription.

I have started defining the characteristic and handling the subscription, but I would appreciate guidance on the exact implementation details, especially how to trigger and send notifications correctly.

Thank you for your assistance!

Best regards,
Aarohi shirbavikar

3 months ago

+1 Jan 3 months ago

TI__Mastermind 37850 points

Hi Aarohi Shirbavikar,

Thank you for reaching out. I would highly recommend referencing the custom profile SLA (link below):

https://dev.ti.com/tirex/content/simplelink_academy_cc13xx_cc26xxsdk_6_40_00_00/modules/ble5stack/ble_01_custom_profile/ble_01_custom_profile.html

This module contains a profile/service builder that allows you to create your own service and copy-paste the code into your project. This will allow you to easily configure the GATT table to have characteristics that can have notifications/indications.

I would then suggest referencing the Simple Serial Socket Server example as this example uses notifications to function:

https://github.com/TexasInstruments/ble_examples/tree/simplelink_cc13xx_26xx_sdk-6.40/examples/rtos/LP_CC2651R3SIPA/ble5apps/simple_serial_socket_server

The SimpleStreamServer_transmitNode() function inside the simple_stream_profile_service.c file (found here: https://github.com/TexasInstruments/ble_examples/blob/simplelink_cc13xx_26xx_sdk-6.40/source/ti/ble5stack/profiles/simple_serial_stream/simple_stream_profile_server.c) shows how a notification may be allocated and sent.

Best Regards,

Jan

Bluetooth®︎

Bluetooth forum

CC2651R3: Help Needed: Configuring Notifications in CC2651R3