# Release Notes for

# STM32WLxx SubGHz Physical Layer Middleware

Copyright © 2021 STMicroelectronics

# Purpose

This Middleware provides the SubGHz Physical Layer for the stm32wlxx products. This covers

- STM32WLxx devices

This driver is composed of the radio driver and radio interface under “stm32_radio_driver” directory.

# Update History

V1.3.1 / 28-Aug-2024

## Main Changes

- Fix: Application hangs because MBMUXIF_LoraSendCmd() command stuck
- Fix: typo in setting MaxPayloadLength for GENERIC_LORA in RadioSetRxGenericConfig
- Release Notes update

## Known limitations:

None

V1.3.0 / 21-Oct-2022

## Main Changes

- Feature: 169MHz validation support
- Feature: Add LoRa-E support (LR-FHSS)
- Feature: RF output optimization
- Chore: Sync Word register addresses not matching Semtech SX1261/2 datasheet
- Fix: SUBGHz GCFO registers not in line with the RM
- Fix: AGC of radio stuck when jammed
- Release Notes update

## Known limitations:

None

V1.2.0 / 14-Dec-2021

## Main Changes

- Feature: Add defines RADIO_SIGFOX_ENABLE and RADIO_GENERIC_CONFIG_ENABLE to reduce code size when not needed
- Feature: Add Tx GMSK support
- Chore: Align register names with Reference Manual
- Chore: Clarify node/broadcast address
- Fix: Set_RxDutyCycle() function (Rx timeout Issue)
- Licensing update: New way to declare licenses
- Release Notes update

## Known limitations:

None

V1.1.0 / 29-Apr-2021

## Main Changes

- fix: SMPS drive level init
- fix: GENERIC_BPSK in RadioSetTxGenericConfig function (test mode)
- fix: MODEM_BPSK is not handled in RadioSetModem in radio.c
- feature: add cfo calculation
- fix: reduce interrupt scope to minimize privilege stack code execution
- feature:add long packet in radio_fw
- feature: Support IBM whitening by firmware radio_fw
- fix: Channel Activity Detection: antenna switch set in rx mode
- fix: Deadlock of WL RF driver
- fix: PingPong RxErrors when SF12, BW500, CR 4/8
- feature: move GetFskBandwidthRegValue in radio_driver
- fix: Incorrect LoRa PER Results
- feature: align to LoRaWAN Semtech stack v4.4.7 integration - Radio Part

## Known limitations:

None

V1.0.0 / 21-Oct-2020

## Main Changes

- First Release

## Known limitations:

None