Migrating from STM32L0, STM32L1, and STM32L4 Series associated with SX12xx transceivers to STM32WL Series microcontrollers

2021-12-08
Migrating an application to a different microcontroller is often needed when product requirements grow, putting extra demands on memory size, or increasing the number of I/Os. On the other hand, cost reduction objectives may force the user to switch to smaller components and to shrink the PCB area.This application note details the steps needed to migrate:
●from an existing application based on a microcontroller of the STM32L0, STM32L1 or STM32L4 Series, associated withone SX12xx Semtech LoRa® transceiver
●to an application based on a microcontroller of the STM32WL Series
This document lists the main features that are necessary to build a LoRaWAN® application on STM32L0, STM32L1 or STM32L4 Series and the equivalent features of STM32WL Series devices. For more details, see the reference manuals and datasheets of the products.
A good knowledge of SX12xx Semtech transceivers is also needed.

ST

STM32WL SeriesSTM32WLSX12xxSTM32L0STM32L1STM32L4 SeriesSTM32L4STM32L0 SeriesSTM32L1 SeriesSX1276MB1MASSX1276MB1LASSX1272MB2DASSX1261DVK1BASSX1262DVK1CASSX1262DVK1DASE406V03ASX1261E428V03ASX1262E449V01ASTM32LxSX127xSTM32CubeCMWX1ZZABZSTM32SX1272SX126xSTM32L072SX1276STM32WLExSTM32WL5xSTM32CubeWLSTM32L073xxSTM32L152xxSTM32L476xxSTM32WLE5JCxxSTM32WL55JCxxSTM32WLE5J8I6

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microcontrollerSemtech transceiversMCUtransceivers

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Application note & Design Guide

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13-Nov-2020

Rev 2

AN5408

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