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Introduction

The Apple Media Service (AMS) is applied to intelligent Bluetooth-enabled devices such as wristbands and smart watches that connect to iOS devices. Through a Bluetooth Low Energy (Bluetooth LE) link, the Bluetooth devices can access media notifications from iOS devices and send AMS-related control commands to iOS devices.

This document introduces the approaches to implementing AMS Client based on a GR551x System-on-Chip (SoC) with details shown in running procedures and major code.

Before getting started, you can refer to the following documents.

Table 1 Reference documents
Name Description

Apple Media Service Reference

Offers Apple Media Service specification. Available at Apple Media Service(AMS) Specification.

GR551x Developer Guide

Introduces GR551x Software Development Kit (SDK) and how to develop and debug applications based on the SDK.

Bluetooth Core Spec

Offers official Bluetooth standards and core specification from Bluetooth SIG.

Bluetooth GATT Spec

Provides details about Bluetooth profiles and services. Available at https://www.bluetooth.com/specifications/gatt.

J-Link/J-Trace User Guide

Provides J-Link operational instructions. Available at http://www.segger.com/downloads/jlink/UM08001_JLink.pdf.

Keil User Guide

Offers detailed Keil operational instructions. Available at www.keil.com/support/man/docs/uv4/.

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