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Documentation > GR5525 Starter Kit User Guide/ Introduction Copy URL


The GR5525 Starter Kit (GR5525 SK) is a development platform based on GR5525 System-on-Chips (SoCs) (supporting Bluetooth 5.3). It contains a GR5525 Starter Kit Board (GR5525 SK Board), design documents, and a user guide. This helps users quickly develop product prototype and verify related functions/performance, shortening product development and go-to-market periods.

The figure below shows the photo of a GR5525 SK Board:

Figure 1 GR5525 SK Board

By default, no application firmware has been pre-downloaded to a GR5525 SK Board. It is recommended to compile the example projects provided in Software Development Kit (SDK) to generate firmware and then download the firmware to a GR5525 SK Board for debugging/testing.

Before you get started, it is recommended to refer to the following documents.

Table 1 Reference documents
Name Description

GR5525 Developer Guide

Introduces the software/hardware and quick start guide of GR5525 SoCs.

J-Link/J-Trace User Guide

Provides J-Link operational instructions. Available at


Offers GR5525 SK Board schematic diagrams.

GR5xx DTM Test Application Note Introduces the test framework and test methods of Direct Test Mode (DTM) in Bluetooth Low Energy (Bluetooth LE) applications, and how to use a Bluetooth tester and DTMTool (an RF test tool) to test the radio frequency (RF) performances of GR5xx SoCs.

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