Developing a Bluetooth Low Energy Application

Table of contents

• Overview
  • Introduction
  • Bluetooth low energy Protocol Stack Basics
• The Application
  • Pre-main initialization
  • ICall
  • Simple Peripheral Task
  • Intertask Messages

The Stack

Table of contents

• Generic Access Profile (GAP)
  • GAP Roles
  • GAP Constraints
  • GAP Advertiser
  • GAP Peripheral
  • GAP Scanner
  • GAP Initiator
  • GAP Central
  • GAP Connection State
• Generic Attribute Profile (GATT)
  • GATT Characteristics and Attributes
  • GATT Client Abstraction
  • GATT Server Abstraction
  • GATT Services and Profile
  • GATT Security
  • Using the GATT Layer Directly
• GAP GATT Service (GGS)
  • Using the GGS
• Generic Attribute Profile Service (GATT Service)
  • Using the GATT Service
• GATTServApp Module
  • Building up the Attribute Table
  • Implementing Profiles in Attributes Table
  • Add Service Function
  • Register Application Callback Function
  • Read and Write Callback Functions
  • Read Request from Client
  • Write Request from Client
  • Get and Set Functions
  • Queued Writes
  • Allocating Memory for GATT Procedures
  • Registering to Receive Additional GATT Events in the Application
• GAP Bond Manager and LE Secure Connections
  • Selection of Pairing Method
  • Using GAPBondMgr
  • GAPBondMgr Examples for Different Pairing Methods
  • GAPBondMgr Example With Bonding Enabled
  • GAPBondMgr and SNV
• Privacy
  • Resolvable Private Addresses
  • Resolving List
  • White List
  • Network Privacy Mode vs. Device Privacy Mode
  • Using Privacy in BLE5-Stack
• Logical Link Control and Adaptation Layer Protocol (L2CAP)
  • General L2CAP Terminology
  • Maximum Transmission Unit (MTU)
  • Configuring for Larger MTU Values
  • L2CAP Channels
  • L2CAP Connection-Oriented Channel (CoC) Example
• LE Data Length Extension (DLE)
  • DLE Update Procedure and Definitions
  • Default Application DLE Behavior
  • Utilizing DLE in the Application
  • Disabling DLE at Runtime
  • Interoperability with Legacy Peers
  • RAM Considerations when using DLE
• Channel Selection Algorithm #2
  • Summary
  • Default Configuration
  • Disabling CSA #2
• Host Controller Interface (HCI)
  • Using HCI and HCI Vendor-Specific Commands in the Application
  • Standard LE HCI Commands and Events
  • HCI Vendor-Specific Commands
• LE Coded PHY
  • Introduction
  • LE Coded S2 and S8
  • PHY Comparison
  • Advertise on LE Coded PHY
  • Scan on LE Coded PHY
  • Initiate a Connection on LE Coded PHY
  • Default PHY
  • Changing PHY
• LE 2M PHY
  • Introduction
  • LE 2M PHY vs LE 1M PHY
  • PHY Limitations
  • Default PHY
  • Changing PHY

Creating a Custom Bluetooth low energy Application

• Defining Application Behavior
  • Directed Advertisements as GATT Server
• Compiler Options
• Linker Options
  • CCS
  • IAR
• Creating Additional ICall Enabled Tasks
• Using Production Test Mode (PTM)
  • Stack Project Changes
  • Application Project Changes
• Optimizing Bluetooth low energy Stack Memory Usage
  • Additional Memory Configuration Options
• Defining Bluetooth Low Energy Behavior
• Stack Configurations
  • Configuring Bluetooth low energy Protocol Stack Features
  • Run-Time Bluetooth low energy Protocol Stack Configuration

Memory Management

• Memory Map
• Flash
  • Flash Vector Table
  • Using Simple NV for Flash Storage
  • Customer Configuration (CCFG) Table
• RAM
  • RAM Vector Table
  • System Stack
  • Dynamic Memory Allocation
• Cache
• AUX RAM

Running the SDK on Custom Boards

• Creating a Custom Board File
• Board Level Middleware
• Using 32-kHz Crystal-Less Mode
• Configuring the RF Front-End for Custom Hardware
• Configuring Device Parameters for Custom Hardware
• Initial Board Bring Up