Proprietary Flex SDK 3.2.3.0 GA

Gecko SDK Suite 3.2

October 13, 20 21

The Proprietary Flex SDK is a complete software development suite for proprietary wire-

less applications. Per its namesake, Flex offers two implementation options.

The first uses S il icon Labs RAIL (Radi o A bs traction Interface Layer ), an i ntuitive and e as-

ily-customizable radio i nt er face l aye r de si gned to support both pro priet ary and standa rds -

based wireless protocols.

The second uses Silicon Labs Connect, an IEEE 802.15.4-based networking stack de-

signed for customizable broad-based proprietary wireless networking solutions that re-

quire low power consumption and operates in either the sub-GHz or 2.4 GHz frequency

bands. The solution is target ed towards simple network topologies.

The Flex SDK is supplied with ext ensive documentat ion and sample applications. All ex-

amples are provided in source code within the Flex SDK sample applicat ions.

These release notes cover SDK version(s):

3.2.3.0 released Octo ber 13, 2021

3.2.2.0 released September 8, 2021

3.2.1.0 released July 21, 2021

3.2.0.0 released June 16, 2021

Compatibility and Use Notices

For information aboutsecurity updates and notices, see the Security chapter of the Gecko Platform Release notes installed with this

SDK or on the Silicon Labs Release Notes page

. Silicon Labs also strongly r ecommends that you subscribe to Security Advisories f or

up-to-dat e infor mation. For instruct ions, or if you are new to the Silicon Labs Flex SDK, see Using This Release.

Compatible Compilers:

IAR Embedded Wo rkben ch fo r ARM (IAR-EWARM) version 8.50.91

• Using wine to build with the IarBuild.exe command line utility or IAR Embedded Workbench GUI on macOS or Linux could result in

incorrect files being used due to collisions in wine’s hashing algor ithm for generating short file names.

• Customers on macOS or Linux are advised not to build with IAR out side of Simplicity Studio. Cust omers who do should car efully

verify t hat the correct files are being used.

GCC (The GNU Compiler Collection) version 10.2.0, provided with Simplicity Studio.

CONNECT APPS AND STACK KEY FEATURES

• EFR32xG23 GA support

• EFR32xG21 and MGMx CONNECT GA

support

• FreeRTOS Su pport for CONNECT

• Long Range PHY Support for CONNECT

• New example: ECDH key exchange

• Example ported from Flex 2.7: DMP

Light/Switch

• Support for the RAIL-embedde d IEEE

802.15.4 PHY

RAIL APPS AND LIBRARY KEY FEATURES

• Wi-SUN Profile and Certified PHYs in

Radio Configurator

• New example: SimpleTRX S tand ar ds for

demonstr ating 15.4/BLE usage

Contents

silabs.com | Bu il din g a more co n nec ted w orl d. Proprietary Flex 3.2.3.0 | 2

Contents

1 Connect Applications .................................................................................................................................................................. 1

1.1 New Items ........................................................................................................................................................................... 1

1.2 Improvements ..................................................................................................................................................................... 1

1.3 Fixed Issues ........................................................................................................................................................................ 1

1.4 Known Issues in the Current Release .................................................................................................................................. 1

1.5 Deprecated It ems ................................................................................................................................................................ 1

1.6 Removed Items ................................................................................................................................................................... 1

2 Connect Stack ............................................................................................................................................................................ 2

2.1 New Items ........................................................................................................................................................................... 2

2.2 Improvements ..................................................................................................................................................................... 2

2.3 Fixed Issues ........................................................................................................................................................................ 2

2.4 Known Issues in the Current Release .................................................................................................................................. 2

2.5 Deprecated It ems ................................................................................................................................................................ 2

2.6 Removed Items ................................................................................................................................................................... 2

3 RAIL Applications ....................................................................................................................................................................... 3

3.1 New Items ........................................................................................................................................................................... 3

3.2 Improvements ..................................................................................................................................................................... 3

3.3 Fixed Issues ........................................................................................................................................................................ 3

3.4 Known Issues in the Current Release .................................................................................................................................. 3

3.5 Deprecated It ems ................................................................................................................................................................ 3

3.6 Removed Items ................................................................................................................................................................... 3

4 RAIL Library ............................................................................................................................................................................... 4

4.1 New Items ........................................................................................................................................................................... 4

4.2 Improvements ..................................................................................................................................................................... 4

4.3 Fixed Issues ........................................................................................................................................................................ 5

4.4 Known Issues in the Current Release .................................................................................................................................. 6

4.5 Deprecated It ems ................................................................................................................................................................ 7

4.6 Removed Items ................................................................................................................................................................... 7

5 Using Th is Release .................................................................................................................................................................... 8

5.1 I nstallation and Use ............................................................................................................................................................. 8

5.2 Security Information ............................................................................................................................................................ 8

5.3 Support ............................................................................................................................................................................... 9