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Generic Attribute Profile (GATT)
61
SWRU271H–October 2010–Revised April 2019
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The Bluetooth Low Energy Protocol Stack
5.5.4.2.5 Get and Set Functions
The profile containing the characteristics provides set and get abstraction functions for the application to
read and/or write a characteristic. The set parameter function should include logic to check for and
implement notifications and/or indications if the relevant characteristic has notify and/or indicate properties.
Figure 5-13 and the following code depict how to set the simpleProfileChacteristic4 in the
simpleGATTProfile.
Figure 5-13. Get and Set Profile Parameter Usage
The application initializes simpleProfileCharacteristic4 to 0 in SimpleBLEPeripheral.c through the following:
The code for this function is displayed in the following code from simpleGATTProfile.c. Other than setting
the value of the static simpleProfileChar4, this function also calls GATTServApp_ProcessCharCfg
because it has GATT_PROP_NOTIFY properties. This call forces GATTServApp to check if notifications
have been enabled by the GATT client. If so, the GATTServApp sends a notification of this attribute to the
GATT client.
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