SILICON LABS 2.5.2.0 Open Thread SDK Instructions
- September 30, 2024
- SILICON LABS
Table of Contents
2.5.2.0 Open Thread SDK
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Specifications:
- Product: Silicon Labs OpenThread SDK
- Version: 2.5.2.0 GA
- Compatibility: GCC version 12.2.1
- Features: Thread mesh networking protocol, low-power operation,
Connected Home applications support
Product Information:
The Silicon Labs OpenThread SDK is a comprehensive solution for
developing products utilizing the Thread wireless IPv6 mesh
networking protocol. It is designed to provide secure, reliable,
and scalable connectivity for Connected Home applications,
optimized for low-power and battery-backed operation.
OpenThread, an open-source implementation by Google, forms the
foundation of this SDK. With a focus on portability and memory
efficiency, OpenThread accelerates the development of connected
home and commercial building products. Silicon Labs has enhanced
the OpenThread implementation to work seamlessly with their
hardware, offering broader hardware support and additional
documentation and example applications.
Product Usage Instructions:
1. Getting Started:
Before using the Silicon Labs OpenThread SDK, ensure you have
the required GCC version 12.2.1 compiler provided with Simplicity
Studio.
2. Development:
Utilize the SDK to develop products for Connected Home
applications, leveraging the features of the Thread mesh networking
protocol.
3. Testing and Validation:
Thoroughly test your applications developed using the SDK to
ensure compatibility and reliability.
4. Integration:
Integrate the developed applications with Silicon Labs hardware
for optimal performance.
FAQ:
Q: What are the key features of the Silicon Labs OpenThread
SDK?
A: The SDK offers compatibility with a range of hardware,
enhanced documentation, and example applications not found in the
GitHub version.
Q: How can I stay informed about security updates related to
the SDK?
A: Refer to the Security chapter of the Platform Release Notes
or visit https://www.silabs.com/developers/thread for security
updates. Subscribe to Security Advisories for real-time
information.
“`
Silicon Labs OpenThread SDK 2.5.2.0 GA
Simplicity SDK Suite 2024.6.2 September 18, 2024
Thread is a secure, reliable, scalable, and upgradeable wireless IPv6 mesh
networking protocol. It provides low-cost bridging to other IP networks while
optimized for low-power / battery-backed operation. The Thread stack is
designed specifically for Connected Home applications where IP-based
networking is desired, and a variety of application layers may be required.
OpenThread released by Google is an open-source implementation of Thread.
Google has released OpenThread to accelerate the development of products for
the connected home and commercial buildings. With a narrow platform
abstraction layer and a small memory footprint, OpenThread is highly portable.
It supports system-on-chip (SoC), network co-processor (NCP), and radio co-
processor (RCP) designs.
Silicon Labs has developed an OpenThread-based SDK tailored to work with
Silicon Labs hardware. The Silicon Labs OpenThread SDK is a fully tested
enhanced version of the GitHub source. It supports a broader range of hardware
than does the GitHub version, and includes documentation and example
applications not available on GitHub.
These release notes cover SDK version(s):
2.5.2.0 GA released on September 18, 2024 2.5.1.0 GA released on July 24, 2024
2.5.0.0 GA released on June 5, 2024
KEY FEATURES
OpenThread · Thread 1.3.0 certification compliance
with Thread Test Harness v59.0 for SoC and Host-RCP architectures · Thread 1.4
features – Alpha / Experimental · Coex Metrics enhancements · OpenThread Mesh
Performance Results (AN1408) · New Part support: · MG26 support Alpha ·
Removed support for Series 0/1 Multi-Protocol · ZigbeeD and OTBR support on
OpenWRT Alpha · DMP BLE + CMP ZB & Matter/OT Alpha · Removed support for
Series 0/1
Compatibility and Use Notices
For information about security updates and notices, see the Security chapter
of the Platform Release Notes installed with this SDK or on the TECH DOCS tab
on https://www.silabs.com/developers/thread . Silicon Labs also strongly
recommends that you subscribe to Security Advisories for up-to-date
information. For instructions, or if you are new to the Silicon Labs
OpenThread SDK, see Using This Release.
Compatible Compilers:
GCC (The GNU Compiler Collection) version 12.2.1, provided with Simplicity
Studio.
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Copyright © 2024 by Silicon Laboratories
OpenThread 2.5.2.0
Contents 1 New Items
…………………………………………………………………………………………………………………………………………………………………… 3
1.1 New Components ………………………………………………………………………………………………………………………………………………….. 3
1.2 New Features ……………………………………………………………………………………………………………………………………………………….. 3
1.3 New APIs……………………………………………………………………………………………………………………………………………………………… 3 1.4
New Radio Board Support ………………………………………………………………………………………………………………………………………. 3
2 Improvements………………………………………………………………………………………………………………………………………………………………. 4
3 Fixed Issues ………………………………………………………………………………………………………………………………………………………………… 5
4 Known Issues in the Current Release
……………………………………………………………………………………………………………………………… 6 5 Deprecated Items
…………………………………………………………………………………………………………………………………………………………. 7 6 Removed Items
……………………………………………………………………………………………………………………………………………………………. 8 7 Multiprotocol
Gateway and RCP …………………………………………………………………………………………………………………………………….. 9 7.1 New
Items…………………………………………………………………………………………………………………………………………………………….. 9 7.2
Improvements……………………………………………………………………………………………………………………………………………………….. 9 7.3
Fixed Issues …………………………………………………………………………………………………………………………………………………………. 9 7.4
Known Issues in the Current Release
…………………………………………………………………………………………………………………….. 10 7.5 Deprecated Items
………………………………………………………………………………………………………………………………………………… 10 7.6 Removed Items
…………………………………………………………………………………………………………………………………………………… 10 8 Using This
Release …………………………………………………………………………………………………………………………………………………….. 11 8.1
Installation and Use ……………………………………………………………………………………………………………………………………………… 11
8.2 OpenThread GitHub Repository
…………………………………………………………………………………………………………………………….. 11 8.3 OpenThread Border
Router GitHub Repository………………………………………………………………………………………………………… 11 8.4 Using
the Border Router ……………………………………………………………………………………………………………………………………….. 11 8.5
NCP/RCP Support……………………………………………………………………………………………………………………………………………….. 12 8.6
Security Information……………………………………………………………………………………………………………………………………………… 12
8.7 Support ………………………………………………………………………………………………………………………………………………………………. 13
8.8 Thread Certification
……………………………………………………………………………………………………………………………………………… 13
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OpenThread 2.5.2.0 | 2
New Items
1 New Items
Simplicity SDK is an embedded software development platform for building IoT
products based on our Series 2 and Series 3 wireless and MCU devices. It
integrates wireless protocol stacks, middleware, peripheral drivers, a
bootloader, and application examples a solid framework for building power-
optimized and secure IoT devices. The Simplicity SDK offers powerful features
such as ultra-low power consumption, strong network reliability, support for a
large number of nodes, and abstraction of complex requirements like
multiprotocol and pre-certification. Additionally, Silicon Labs provides over-
the-air (OTA) software and security updates to remotely update devices,
minimize maintenance costs, and enhance the end-user product experience.
Simplicity SDK is a follow-on from our popular Gecko SDK, which will continue
to be available providing long-term support for our Series 0 and Series 1
devices. For additional information on the Series 0 and Series 1 devices
please reference: Series 0 and Series 1 EFM32/EZR32/EFR32 device (silabs.com).
1.1 New Components
Added in release 2.5.0.0 · ot_core_vendor_extension – This component
implements the ot::Extension::ExtensionBase interface for EFR32. When used
with the
OT Crash Handler component, crash info will be printed after the OpenThread
instance is initialized.
1.2 New Features
Added in release 2.5.0.0 · The versions of OpenThread and the OpenThread
Border Router have been updated. See sections 8.2 and 8.3. · Libraries and
sample applications in this SDK default to Thread 1.3. Thread 1.4 version and
features, including credential sharing
and ephemeral key support, are supported but are not ready for certification
and still have ongoing development. · Optimization to the OpenThread API to
allow for thread-safe access to the OpenThread stack in a multi-threaded RTOS
environment. · A new platform component, Clock Manager, is integrated to all
the openthread sample applications for clock configuration. · A new platform
component, Memory Manager, is integrated to all the openthread sample
applications for dynamic memory manage-
ment. · OTBR on OpenWRT. A new multiprotocol openthread-br ipk package has
been added for use in the OpenWRT host environment. · Support for OpenThread
Coex metrics
1.3 New APIs
Added in release 2.5.0.0 · Support for OpenThread diag channel and transmit
power API and CLI commands: otPlatDiagTxPowerSet() and otPlatDiagChan-
nelSet().
1.4 New Radio Board Support
Added in release 2.5.0.0 Support has been added for the following radio
boards: · BRD4116A – EFR32MG26B410F3200IM48-A
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OpenThread 2.5.2.0 | 3
Improvements
2 Improvements
Changed in release 2.5.0.0 · The ot_rcp_gp_interface component has been
renamed to ot_gp_interface. · The openthread API includes all changes up to
and including the updates described here: https://openthread.io/reference/api-
up-
dates#may_17_2024. · The set of prebuilt demo sample applications has been
updated as follows:
· ot-ble-dmp (brd2703a, brd4116a, brd4180a, brd4186c) · ot-ble-dmp-no-
buttons (brd2703a, brd4116a, brd4180a, brd4186c) · ot-cli-ftd (brd2703a,
brd4116a, brd4180a, brd4186c) · ot-cli-mtd (brd2703a, brd4116a, brd4180a,
brd4186c) · ot-rcp (brd2703a, brd4116a, brd4180a, brd4180b, brd4186c) · rcp-
spi-802154 (brd4116a, brd4180a, brd4180b, brd4186c) · rcp-spi-802154-blehci
(brd4116a, brd4180a, brd4180b, brd4186c) · rcp-uarti-802154 (brd2703a,
brd4116a, brd4180a, brd4180b, brd4186c) · rcp-uart-802154-blehci (brd2703a,
brd4116a, brd4180a, brd4180b, brd4186c) · sleepy-demo-ftd (brd2703a,
brd4116a, brd4180a, brd4186c) · sleepy-demo-mtd (brd2703a, brd4116a,
brd4180a, brd4186c) · sleepy-demo-ssed (brd2703a, brd4116a, brd4180a,
brd4186c) · Increased OPENTHREAD_CONFIG_CSL_RECEIVE_TIME_AHEAD to 750 us. for
default FTD and MTD certification libraries for use with devices under test
using library-based certification. · For older project files (.slcps) the
default config value of CIRCULAR_QUEUE_LEN_MAX must be greater than or equal
to SL_OPENTHREAD_RADIO_RX_BUFFER_COUNT (i.e. 16). Otherwise, the validation
script will fail the project generation. This can be done by adding the config
value entry in the .slcp directly or from Simplicity Studio: go to the
`Circular Queue’ component, then go to configuration, and set the max length
as per SL_OPENTHREAD_RADIO_RX_BUFFER_COUNT. · For multipan RCP applications,
replace existing app.c with
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OpenThread 2.5.2.0 | 4
3 Fixed Issues
Fixed Issues
Fixed in release 2.5.2.0
ID # 1238120 / 1334227
1289835 / 1334618 1295848 / 1334987
1327029 / 1337439 1329286 / 1334038
Description
In a multiprotocol RCP environment certain incoming packets were wrongly
interpreted as Zigbee Green Power packets triggering a random outgoing packet.
The issue is fixed by strengthening the Zigbee Green Power packet detection on
the RCP.
Fixed issue with the openthread border router dropping more packets than
expected when running within a docker container and under duress.
Fixed occasional occurrence of duplicate header bytes that were causing rcp
resets in busy networks with a lot of traffic over SPI. Also, it is
recommended to use a higher spi-bus speed (such as 4Mhz – depending on the
network traffic) with a reduced debug logging level to have stable
communication between host and rcp. Higher spi speed on OTBR can be set in
radio-url as ‘spi-speed=<>’ argument.
Added support for uartdrv_eusart:vcom instance in OpenThread applications.
Removed the “-Werror=unused-parameter” GCC compiler option so that
applications that have unused parameters can build.
Fixed in release 2.5.1.0
ID # 1295833
Description
The following was added to NCP README to better reflect the actual status of
the NCP samples apps. “Note that the NCP design model is not supported or
tested, although experimental support is available with the OpenThread stack.”
Fixed in release 2.5.0.0
ID # 1208578 1235923 1238120
1243597 1249346 1255247 1249492 1251926
1251952 1255595 1263222 1277790 1287331
Description Added support for linking the CPC library to Posix host apps by
using provided paths, and by using pkg-config.
Fixed a wrapping bug in calls to otPlatAlarmMilliStartAt and
otPlatAlarmMicroStartAt.
In a multiprotocol RCP environment, certain incoming packets were wrongly
interpreted as Zigbee Green Power packets, triggering a random outgoing
packet. The issue is fixed by strengthening the Zigbee Green Power packet
detection on the RCP. Removed extra ot-ble-dmp-no-buttons sample apps from
demos folder.
Addressed an issue where the RCP could incorrectly dequeue packets destined
for the host, resulting in a parse error in the OTBR and unexpected
termination. The dBus FactoryReset command no longer causes the openthread
border router to terminate.
When using the crash handler feature in a Host / RCP environment, the RCP was
attempting to send the crash info to the Host too early after reboot, causing
the info to be dropped prior to logging. This issue is addressed by
introducing a new spinel property to the upstream openthread stack. The
property allows the Host to request crash logs from the RCP once the Host is
ready for them. See https://github.com/openthread/openthread/pull/10061 for
more information on the new spinel property. Fixed undefined reference to
otInstanceResetToBootloader when building with ot_cert_libs and
bootloader_interface.
Fix a type promotion issue when handling large values in otPlatAlarm APIs
Fixed coex metric “Average Request To Grant Time”.
Fixed coex metric “Grant Immediate”.
The ot-ble-dmp sample application is now only supported on parts with at least
768k of flash.
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OpenThread 2.5.2.0 | 5
Known Issues in the Current Release
4 Known Issues in the Current Release
Issues in bold were added since the previous release. If you have missed a
release, recent release notes are available on
https://www.silabs.com/developers/thread in the Tech Docs tab.
ID # 482915 495241 1295252
815275
1286531 1295725
Description
A known limitation with the UART driver can cause characters to be lost on CLI
input or output. This can happen during particularly long critical sections
that may disable interrupts, so it can be alleviated by repeating the CLI or
waiting long enough for state changes.
Ability to modify the Radio CCA Modes at compiletime using a configuration
option in Simplicity Studio is currently not supported.
Workaround No known workaround
Use the SL_OPENTHREAD_RADIO_CCA_MODE configuration option defined in
openthread-core-efr32-config.h header file included with your project.
CSL/SSED instability.
Adjust settings of CSL related configuration macros.
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5 Deprecated Items
Deprecated in release 2.5.0.0 None.
Deprecated Items
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6 Removed Items
Removed in release 2.5.0.0 · Support for Series 0 and Series 1 parts · Support
for Proprietary Sub-GHz Support
Removed Items
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OpenThread 2.5.2.0 | 8
7 Multiprotocol Gateway and RCP
Multiprotocol Gateway and RCP
7.1 New Items
Added in release 2.5.0.0
OpenWRT alpha support has been added for zigbeed, OTBR and Z3Gateway
applications. Zigbeed and OTBR are now provided in IPK package format as well.
See AN1333: Running Zigbee, OpenThread, and Bluetooth Concurrently on a Linux
Host with a Multiprotocol Co-Processor for details.
7.2 Improvements
Changed in release 2.5.2.0 In Zigbeed, the halCommonGetInt32uMillisecondTick()
tick API is now updated to use MONOTONIC clock so that it does not get
affected by the NTP in a host system.
Changed in release 2.5.1.0 The zb_ble_dmp_print_ble_connections() API is
defined in the zigbee_ble_event_handler component and referenced in the
zigbee_ble_dmp_cli component. For applications that use the zigbee_ble_dmp_cli
component, but NOT the zigbee_ble_event_handler, you will need to add an empty
stub for this function in your app.c file as follows:
void zb_ble_dmp_print_ble_connections(void) { }
Changed in release 2.5.0.0 None.
7.3 Fixed Issues
Fixed in release 2.5.2.0
ID # 1332330 1337228
Description
Fixed an issue where a 15.4+BLE RCP operating in an environment with heavy
network traffic could occasionally encounter a race condition that would leave
it unable to send messages up to CPCd until rebooting the device. (Other ref:
1333150)
In Zigbeed the halCommonGetInt32uMillisecondTick() tick API is now updated to
use MONOTONIC clock, so that it does not get affected by the NTP in a host
system. (Other ref: 1346711)
Fixed in release 2.5.1.0
ID # 1300848
Description
An issue was fixed where Z3Gateway in OpenWRT environment couldn’t start EZSP
communication caused by mismatching termios control characters running on
OpenWRT and other environments.
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OpenThread 2.5.2.0 | 9
Fixed in release 2.5.0.0
Multiprotocol Gateway and RCP
ID # 1231021 1242948 1244459 1245988 1282264
1288653 1292537 1252365 1293853 1124140
Description Fixed an issue to avoid an OTBR assert by recovering the RCP
rather than passing unhandled transmit errors to the sub mac.
Removed spurious test asserts from zigbeed.
Fixed issue where MAC-retried Indirect transmissions via RCP can result in a
source match table entry for child being removed despite messages pending.
Fixed an issue where Zigbeed did not restart when performing a Trust Center
Backup and Restore Reset Node action.
Fixed issue that could have interrupted radio transmit operations by clearing
the transmit fifo prematurely, causing underflow. Zigbee/OT/BLE SOC app will
now print connection info upon receiving the CLI command “plugin ble gap
printconnections”.
Zigbee/BLE NCP application is now properly showing up in Simplicity Studio UI.
Added Coexistence plugin back into Zigbee NCP/OpenThread RCP sample
application.
Reduced RAM footprint for zigbee_ncp-ot_rcp-spi and zigbee_ncp-ot_rcp_uart on
MG21.
Fixed an issue where setting SL_OPENTHREAD_RADIO_RX_BUFFER_COUNT to a value
other than 1 caused z3light_ot-ftd_soc to not send Zigbee beacons after the
OpenThread network is up.
7.4 Known Issues in the Current Release
Issues in bold were added since the previous release. If you have missed a
release, recent release notes are available on
https://www.silabs.com/developers/simplicity-software-development-kit.
ID # 937562 1074205 1122723
1209958 1221299
Description
Bluetoothctl `advertise on’ command fails with rcp-uart802154-blehci app on
Raspberry Pi OS 11.
The CMP RCP does not support two networks on the same PAN id.
In a busy environment, the CLI may become unresponsive in the z3-light_ot-
ftd_soc app.
The ZB/OT/BLE RCP on MG24 and MG21 can stop working after a few minutes when
running all three protocols.
Mfglib RSSI readings differ between RCP and NCP.
Workaround Use btmgmt app instead of bluetoothctl. Use different PAN ids for
each network. Support is planned in a future release. No known workaround.
Will be addressed in a future release.
Will be addressed in a future release.
7.5 Deprecated Items
None.
7.6 Removed Items
Removed in release 2.5.0.0 None.
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OpenThread 2.5.2.0 | 10
Using This Release
8 Using This Release
This release contains the following · Silicon Labs OpenThread stack · Silicon
Labs OpenThread sample applications · Silicon Labs OpenThread border router
For more information about the OpenThread SDK see QSG170: Silicon Labs
OpenThread QuickStart Guide. If you are new to Thread see UG103.11: Thread
Fundamentals.
8.1 Installation and Use
The OpenThread SDK is part of the Simplicity SDK, the suite of Silicon Labs
SDKs. To quickly get started with OpenThread and the Simplicity SDK, start by
installing Simplicity Studio 5, which will set up your development environment
and walk you through Simplicity SDK installation. Simplicity Studio 5 includes
everything needed for IoT product development with Silicon Labs devices,
including a resource and project launcher, software configuration tools, full
IDE with GNU toolchain, and analysis tools. Installation instructions are
provided in the online Simplicity Studio 5 User’s Guide. Alternatively,
Simplicity SDK may be installed manually by downloading or cloning the latest
from GitHub. See https://github.com/SiliconLabs/simplicity_sdk for more
information. The GSDK default installation location has changed beginning with
Simplicity Studio 5.3. · Windows:
C:Users
8.2 OpenThread GitHub Repository
The Silicon Labs OpenThread SDK includes all changes from the OpenThread
GitHub repo (https://github.com/openthread/openthread) up to and including
commit 1fceb225b. An enhanced version of the OpenThread repo can be found in
the following Simplicity Studio 5 GSDK location: <GSDK Installation
Location>utilthird_partyopenthread
8.3 OpenThread Border Router GitHub Repository
The Silicon Labs OpenThread SDK includes all changes from the OpenThread
border router GitHub repo (https://github.com/openthread/ot-br-posix) up to
and including commit e56c02006. An enhanced version of the OpenThread border
router repo can be found in the following Simplicity Studio 5 GSDK location:
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OpenThread 2.5.2.0 | 11
Using This Release
8.5 NCP/RCP Support
The OpenThread NCP support is included with OpenThread SDK but any use of this
support should be considered experimental. The OpenThread RCP is fully
implemented and supported.
8.6 Security Information
Secure Vault Integration
When deployed to Secure Vault High devices, sensitive keys are protected using
the Secure Vault Key Management functionality. The following table shows the
protected keys and their storage protection characteristics.
Wrapped Key Thread Master Key PSKc Key Encryption Key MLE Key Temporary MLE Key MAC Previous Key MAC Current Key MAC Next Key
Exportable / Non-Exportable Exportable Exportable Exportable Non-Exportable Non-Exportable Non-Exportable Non-Exportable Non-Exportable
Notes Must be exportable to form the TLVs Must be exportable to form the TLVs Must be exportable to form the TLVs
Wrapped keys that are marked as “Non-Exportable” can be used but cannot be viewed or shared at runtime. Wrapped keys that are marked as “Exportable” can be used or shared at runtime but remain encrypted while stored in flash. For more information on Secure Vault Key Management functionality, see AN1271: Secure Key Storage.
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OpenThread 2.5.2.0 | 12
Using This Release
Security Advisories
To subscribe to Security Advisories, log in to the Silicon Labs customer
portal, then select Account Home. Click HOME to go to the portal home page and
then click the Manage Notifications tile. Make sure that `Software/Security
Advisory Notices & Product Change Notices (PCNs)’ is checked, and that you are
subscribed at minimum for your platform and protocol. Click Save to save any
changes.
The following figure is an example:
8.7 Support
Development Kit customers are eligible for training and technical support. Use
the Silicon Laboratories Thread web page to obtain information about all
Silicon Labs OpenThread products and services, and to sign up for product
support.
You can contact Silicon Laboratories support at http://www.silabs.com/support.
8.8 Thread Certification
This release has been qualified for Thread 1.3.0 with Thread Test Harness
v60.0 (Member Release). For Thread Product certifications tied to this major
release and associated patch releases (with no OpenThread stack updates),
Silicon Labs recommends using the above TH version for qualification. Also
included with this release is a set of OpenThread stack and PAL libraries that
may be used for Thread certification by inheritance.
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OpenThread 2.5.2.0 | 13
Simplicity Studio
One-click access to MCU and wireless tools, documentation, software, source
code libraries & more. Available for Windows, Mac and Linux!
IoT Portfolio
www.silabs.com/IoT
SW/HW
www.silabs.com/simplicity
Quality
www.silabs.com/quality
Support & Community
www.silabs.com/community
Disclaimer Silicon Labs intends to provide customers with the latest,
accurate, and in-depth documentation of all peripherals and modules available
for system and software implementers using or intending to use the Silicon
Labs products. Characterization data, available modules and peripherals,
memory sizes and memory addresses refer to each specific device, and “Typical”
parameters provided can and do vary in different applications. Application
examples described herein are for illustrative purposes only. Silicon Labs
reserves the right to make changes without further notice to the product
information, specifications, and descriptions herein, and does not give
warranties as to the accuracy or completeness of the included information.
Without prior notification, Silicon Labs may update product firmware during
the manufacturing process for security or reliability reasons. Such changes
will not alter the specifications or the performance of the product. Silicon
Labs shall have no liability for the consequences of use of the information
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applications for which FDA premarket approval is required or Life Support
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References
- Silicon Labs
- Silicon Labs
- Silicon Labs Community
- IoT – Internet of Things - Silicon Labs
- Simplicity Studio - Silicon Labs
- Technical Support - Silicon Labs
- GitHub - openthread/openthread: OpenThread released by Google is an open-source implementation of the Thread networking protocol
- [spinel] add support for logging crash dumps by lmnotran · Pull Request #10061 · openthread/openthread · GitHub
- GitHub - openthread/ot-br-posix: OpenThread Border Router, a Thread border router for POSIX-based platforms.
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