Middleware
RTOS
The MCUXpresso SDK is integrated with the FreeRTOS OS.
Parent topic:Middleware
Wireless connectivity middleware overview
Component versions:
Wireless connectivity component |
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The following connectivity-supporting documentation is included with this release:
Bluetooth Low Energy Quick Start Guide
Bluetooth Low Energy Demo Applications User’s Guide
Bluetooth Low Energy Application Developer’s Guide
Bluetooth Low Energy Host Stack API Reference Manual
Bluetooth Low Energy Host Stack FSCI Application Programming
Bluetooth Low Energy Host Stack FSCI Reference Manual
Bluetooth Low Energy CCC Digital Key Application Note
Generic FSK Link Layer Quick Start Guide
Generic FSK Link Layer API Reference Manual
Connectivity Framework Reference Manual
Connectivity Framework API Documentation
Low Power Connectivity Reference Design User’s Guide
Bluetooth LE host stack and applications
The Bluetooth LE Host Stack component provides an implementation for a Bluetooth LE mandatory and some optional, proprietary, and experimental features. The Bluetooth LE Host Stack component provides application examples, services, and profiles.
Main features supported:
Automotive Compliance
MISRA Compliance
HIS CCM <= 20
Advanced Secure Mode
Enhanced ATT
GATT Caching
Bluetooth LE Host GCC Libraries
Bluetooth LE Host IAR Libraries
Bluetooth LE Host Peripheral Libraries
Bluetooth LE Central Libraries
Bluetooth LE Host Full Host Features Libraries
Bluetooth LE Host Optional Features Libraries
Bluetooth LE Host Mandatory Features Libraries
Bare-metal and FreeRTOS Support
Bluetooth LE Privacy Support
CCC Sample Applications
Enhanced Notifications
Dynamic Database
OTA Support - Sample Applications
Decision based Advertising Filtering (DBAF) - Experimental feature
Advertising Coding Selection (ACS) - Experimental feature
Channel Sounding - Experimental feature with controlled access (contact your NXP representative for access)
Bluetooth LE Controller main and experimental features and capabilities described below are supported by the Bluetooth LE Host.
Note: For evaluating DBAF and ACS experimental features, replace the Bluetooth LE Host default example projects libraries with the libraries from the SDK folder ..\middleware\wireless\bluetooth\host\lib_exp and enable the features in the application. The Radio Subsystem (NBU) Firmware with experimental features is required.
Parent topic:Wireless connectivity middleware overview
Bluetooth LE controller
Main features supported:
Peripheral Role
Central Role
Multiple PHYs (1 Mbps, 2 Mbps, Coded PHY)
Asymmetric Connections
Public/Random/Static Addresses
Network/Device Privacy Modes
Extended Advertising
Extended Scanning
Passive/Active Scanning
LE Encryption
LE Ping Procedure
HCI Test Interface
UART Test Interface
Randomized Advertising Channel Indexing
Sleep Clock Accuracy Update - Mechanism
ADI Field in Scan Response Data
HCI Support for Debug Keys in LE - Secure Connections
Main capabilities supported:
Simultaneous scanning 1 Mbps and Long Range
Scanning and advertising in parallel
24 connections as a central role
24 connections as a peripheral role
Any combination of central and peripheral roles (24 connections maximum)
8 connections with a 7.5 ms connection interval
Two advertising sets in parallel
26 Accept List entries
36 Resolvable Private Address (RPA) entries
Up to six Chain Packets per Extended Advertising set
Enhanced Notification on end of - Scanning/Advertising/Connection events
Connection event counters associated to Bluetooth LE packet reception
Timestamp associated to Bluetooth LE packet reception
RF channel info associated to Bluetooth LE packet reception
NXP proprietary Bluetooth LE Handover feature
Decision Based Advertising Filtering (DBAF) - Experimental feature
Advertising Coding Selection (ACS) - Experimental feature
Channel Sounding - Experimental feature
Note:
Project configurations that require usage of the Bluetooth LE controller including all Bluetooth LE examples require the Radio Subsystem (NBU) Firmware to be re-programmed with the firmware provided in the SDK under middleware\wireless\ble_controller\bin.
Parent topic:Wireless connectivity middleware overview
XCVR
The XCVR component provides a base Transceiver Driver for the 2.4 GHz narrowband radio.
Parent topic:Wireless connectivity middleware overview
GenFSK link layer
The Generic FSK protocol enables radio operation using a custom GFSK/GMSK or MSK modulation format.
Main Features supported:
Highly configurable packet structure
Optimized Sequence Command Set
High-precision timebase to maintain network timing
Two timer-compare mechanisms for Interrupt Generation and Sequence Launching
Hardware automation for packet transmit and receive, CRC and Whitening
Up to four network addresses to synchronize to, can be 8-bit, 16-bit or 32-bit
Packet Lengths up to 2047 Bytes
Support complex auto-sequence, like CCA before TX, Auto-ACK, TR.
Many operating modes can support the sending and receiving of multiple protocol packets, such as Bluetooth LE.
Parent topic:Wireless connectivity middleware overview
Low-power reference design applications (central and peripheral)
The Low-Power Reference Design Applications provide reference design source code and projects showcasing how to implement optimized low power functionality based on a Bluetooth LE application. For additional details, see the README.md in the boards\kw47evk\wireless_examples\reference_design\bluetooth folder.
Parent topic:Wireless connectivity middleware overview
Connectivity framework
The Connectivity Framework is a software component that provides hardware abstraction modules to the upper layer connectivity stacks and components. It also provides a list of services and APIs, such as, Low power, Over the Air (OTA) Firmware update, File System, Security, Sensors, Serial Connectivity Interface (FSCI), and others. The Connectivity Framework modules are located in the middleware\wireless\framework SDK folder.
Parent topic:Wireless connectivity middleware overview
Parent topic:Middleware
Other middleware
Optional middleware packages can be included in the release based on the user selection. See <install_dir>/SW-Content-Register.txt for a list of components and associated licenses.
Parent topic:Middleware
Parent topic:MCUXpresso SDK release package