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Introduction

Serial Port Profile (SPP) defines how to pass through data from virtual serial ports to peer Bluetooth Low Energy (Bluetooth LE) devices by adopting Bluetooth LE technology.

Bluetooth Special Interest Group (Bluetooth SIG) does not define standard profiles for Bluetooth LE serial port pass-through. Therefore, to make Goodix-customized SPP user-friendly, this document introduces how to use and verify the Goodix SPP example in the GR55xx SDK.

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

Table 1 Reference documents
Name Description

GR55xx Sample Service Application and Customization

Introduces how to apply and customize Goodix Sample Service in developing Bluetooth LE applications based on GR55xx SDK.

Developer guide of the specific GR55xx SoC

Introduces the software/hardware and quick start guide of the specific GR55xx SoC in use.

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 www.bluetooth.com/specifications/gatt.

J-Link/J-Trace User Guide

Provides J-Link operational instructions. Available at 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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