2. Abstract

This guide introduces DA14531 BLE FIT module drivers and middleware designed for the DA1453x Bluetooth Low Energy (LE) devices. It shows how they can boot from host Renesas microcontroller through a UART interface and how to run a Bluetooth Low Energy application from the RX microcontroller using the GTL interface. GTL is a GAP like protocol which is natively supported in DA1453x Bluetooth devices. With GTL, all BLE operations, like advertising, disconnection, connection confirmation, security request, and pairing/encryption, can be controlled by the Renesas microcontroller. The Middleware for the Bluetooth peripheral on the Renesas microcontroller MCU is described in the US159-DA14531EVZ BLE Control Module Using Firmware Integration Technology Application note.

Note

• DA1453x here is referring to DA14531-00, DA14531-01 , DA14530

• The DA14531-00 is the main DA14531 device. The -00 is just a new naming to introduce the variant DA14531-01. The DA14531-01 is a ROM variant of the main DA14531-00.