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Silicon Labs Bluetooth: What is the GATT Database File (gatt.xml)?

EFx32

Bluetooth® LE uses the GATT base profile for communication, and the GATT database file (gatt.xml) specifies the service and characteristics of the profile to be used. A list of profiles, services, and characteristics can be found on the Bluetooth SIG website. The figure below is a description example.

Article header gatt.xml%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%81%ab%e3%81%a4%e3%81%84%e3% 81%a6%e6%95%99%e3%81%88%e3%81%a6%e3%81%8f%e3%81%a0%e3%81%95%e3%81%84 1

The items that can be set in gatt.xml and the syntax (grammar) for writing are described in the document below.

  • BGM111

"2. Building the GATT Database with Profile Toolkit" in "UG118: Blue Gecko Bluetooth® Smart Profile Toolkit Developer User's Guide"

  • BT121

"3 GATT Database file (gatt.xml)" in "Bluetooth Smart Profile Toolkit"

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