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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta charset="utf-8" />
<meta name="generator" content="pandoc" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" />
<title>Release Notes for STM32CubeU3 Firmware Package</title>
<style type="text/css">
code{white-space: pre-wrap;}
span.smallcaps{font-variant: small-caps;}
span.underline{text-decoration: underline;}
div.column{display: inline-block; vertical-align: top; width: 50%;}
</style>
<link rel="stylesheet" href="_htmresc/mini-st_2020.css" />
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<![endif]-->
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</head>
<body>
<div class="row">
<div class="col-sm-12 col-lg-4">
<center>
<h1 id="release-notes-for">Release Notes for</h1>
<h1 id="stm32cubeu3-firmware-package"><mark>STM32CubeU3 Firmware Package</mark></h1>
<p>Copyright © 2024-2026 STMicroelectronics<br />
</p>
<a href="https://www.st.com" class="logo"><img src="_htmresc/st_logo_2020.png" alt="ST logo" /></a>
</center>
<h1 id="purpose">Purpose</h1>
<p><strong>STM32Cube is an STMicroelectronics original initiative to ease developers life by reducing development efforts, time and cost.</mark></strong></p>
<p>STM32Cube covers STM32 portfolio.</p>
<p>STM32Cube Version 1.x includes:</p>
<ul>
<li>The STM32CubeMX, a graphical software configuration tool that allows to generate C initialization code using graphical wizards.</li>
<li>A comprehensive embedded software platform, delivered per series
<ul>
<li>The STM32Cube HAL, an STM32 abstraction layer embedded software, ensuring maximized portability across STM32 portfolio.</li>
<li>Low-layer APIs (LL) offering a fast light-weight expert-oriented layer which is closer to the hardware than the HAL.</li>
<li>A consistent set of middleware libraries such as ThreadX, USBX…</li>
</ul></li>
</ul>
<p>All embedded software utilities, delivered with a full set of examples.</p>
<p>The STM32Cube firmware solution offers a straightforward API with a modular architecture, making it simple to fine tune custom applications and scalable to fit most requirements.</p>
<figure>
<img src="_htmresc/STM32Cube_2020.bmp" alt="STM32Cube" /><figcaption>STM32Cube</figcaption>
</figure>
<p><br />
</p>
<p>The HAL (Hardware Abstraction Layer) & LL (Low Layers) drivers provided within this package support the STM32U3xx lines.</p>
<p>The HAL and LL drivers provided within this package are compliant with MISRA-C:2012 guidelines, and have been reviewed with a static analysis tool to eliminate possible run-time errors. Reports are available on demand.</p>
<p>For quick getting started with the STM32CubeU3 firmware package, you can refer to UM3294 and download firmware updates and all the latest documentation from <a href="https://www.st.com/content/st_com/en/products/embedded-software/mcu-mpu-embedded-software/stm32-embedded-software/stm32cube-mcu-mpu-packages/stm32cubeu3.html">www.st.com/stm32cubeU3</a></p>
<p>Here is the list of references to user documents:</p>
<ul>
<li><a href="Documentations/STM32CubeU3GettingStarted.pdf">UM3427:</a> Getting started with STM32CubeU3 for STM32U3 Series</li>
<li><a href="https://www.st.com/resource/en/user_manual/DM01132685.pdf">UM3439:</a> Description of STM32U3xx HAL and LL drivers</li>
<li><a href="https://www.st.com/resource/en/application_note/DM01134275.pdf">AN6215:</a> STM32Cube MCU Package examples for STM32U3 series</li>
</ul>
</div>
<div class="col-sm-12 col-lg-8">
<h1 id="update-history">Update History</h1>
<div class="collapse">
<input type="checkbox" id="collapse-section4" checked aria-hidden="true"> <label for="collapse-section4" aria-hidden="true"><strong>V1.3.0 / 04-February-2026</strong></label>
<div>
<h2 id="official-release">Official Release</h2>
<p>Official release of <strong>STM32CubeU3</strong> (STM32Cube for STM32U3 Series) supporting <strong>STM32U375xx/STM32U385xx/STM32U3B5xx/STM32U3C5xx</strong> devices.</p>
<ul>
<li>Added Support of new device STM32U3 2M</li>
<li>Deliver new <strong>HSP</strong> HAL driver</li>
</ul>
<h2 id="contents">Contents</h2>
<ul>
<li><strong>SBOM</strong>
<ul>
<li>Deliver SBOM in <a href="./sbom_cdx.json">CycloneDX v1.5 format</a></li>
</ul></li>
<li><strong>CMSIS Devices Drivers</strong> updates (Please refer to the <a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/cmsis-device-u3/blob/main/Release_Notes.html">release notes</a> for details)
<ul>
<li>Support of <strong>STM32U375xx/STM32U385xx/STM32U3B5xx/STM32U3C5xx</strong> devices</li>
<li>Update CMSIS devices to include latest corrections</li>
</ul></li>
<li><strong>HAL/LL Drivers</strong> (Please Refer to the <a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-hal-driver/blob/main/Release_Notes.html">release notes</a> for details)
<ul>
<li>HAL and LL drivers are available for all peripherals:
<ul>
<li><strong>HAL Drivers</strong>: ADC, CCB, COMP, CORTEX, CRC, CRS, CRYP, DAC, DELAYBLOCK, DMA, EXTI, FDCAN, FLASH, GPIO, GTZC, HASH, HSP, I2C, I3C, ICACHE, IRDA, IWDG, LCD, LPTIM, MDF, OPAMP, PKA, PWR, RAMCFG, RCC, RNG, RTC, SAI, SDMMC, SMARTCARD, SPI, TIM, TSC, UART, USART, USB, WWDG, XSPI</li>
<li><strong>LL Drivers</strong> : ADC, COMP, CRC, CRS, DAC, DELAYBLOCK, DMA, EXTI, GPIO, I2C, I3C, ICACHE, LPTIM, OPAMP, PKA, PWR, RCC, RNG, RTC, SDMMC, SPI, TIM, UART, USART, USB</li>
</ul></li>
<li>Update HAL/LL drivers to include latest corrections</li>
<li>Added New HSP Driver</li>
</ul></li>
<li><strong>BSP drivers</strong> update
<ul>
<li>Update BSP component for STM32U3B5/C5</li>
</ul></li>
<li><strong>Middlewares</strong> updates
<ul>
<li>Update <strong>ThreadX</strong> version to <strong>threadx-6.4.0.250822</strong></li>
<li>Update <strong>USBX</strong> version to <strong>usbx-6.4.0.260116</strong></li>
<li>Update <strong>NetX Duo</strong> version to <strong>netxduo-6.4.0.250619</strong></li>
<li>Update <strong>FileX</strong> version to <strong>filex-6.4.0.251006</strong></li>
<li>Update <strong>LevelX</strong> version to <strong>levelx-6.4.0.251006</strong></li>
<li>Update <strong>CMSIS-RTOS ThreadX wrapper</strong> version to <strong>tx-cmsis-1.4.0.251114</strong></li>
<li>Update <strong>USBX STM32 Host Controllers</strong> version to <strong>v3.1.1.260116</strong></li>
<li>Update <strong>NetX Drivers</strong> version to <strong>v4.1.0.250618</strong></li>
<li>Update <strong>FileX Drivers</strong> version to <strong>v4.0.0.251003</strong></li>
<li>Update <strong>LevelX Drivers</strong> version to <strong>v3.2.3.251003</strong></li>
<li>Update <strong>mbed-crypto</strong> version to <strong>mbed-tls-v3.6.4_20250701</strong></li>
<li>Update <strong>mcuboot</strong> version to <strong>v1.7.2.38</strong></li>
<li>Add new component <strong>hsp_engine</strong> version <strong>v1.0.0</strong></li>
</ul></li>
<li><strong>Utilities</strong> updates
<ul>
<li>Update <strong>ROT_AppliConfig </strong> version to <strong>v1.1.4</strong></li>
</ul></li>
<li><strong>Applications</strong> updates
<ul>
<li>Applications for OEMiROT_Appli, OEMiROT_Appli_TrustZone, and OEMiROT_Boot ported to STM32U3 2M</li>
<li>Applications for ThreadX, FileX, USBX applications ported to STM32U3 2M</li>
<li>New Applications for HSP - biquad_acc, cfft_acc, fir_acc, fir_rfft_seq, fir_seq and rfft_acc</li>
<li>Improve power consumption</li>
<li>Enabled SMPS for all Applications for the improvement in low power consumption</li>
<li>Enabled ICACHE-1WAY for HSP, Filex, ThreadX and USBX applications for the improvement in low power consumption</li>
</ul></li>
<li><strong>ROT_Provisionning</strong> updates
<ul>
<li>Update OEMiROT and OEMiRoT_OEMuRoT for STM32U3 2M</li>
</ul></li>
<li><strong>Examples</strong> update
<ul>
<li>IP HAL Examples for STM32U3 2M</li>
<li>Enabled SMPS for the improvement in low power consumption of all the examples</li>
<li>Enabled ICACHE-1WAY for the improvement in low power consumption of all the examples</li>
<li>STM32U3 2M: XSPI Example demonstrating usage of
<ul>
<li>XSPI_MemoryToolbox_M2_MX25UW25645G</li>
<li>XSPI_MemoryToolbox_M2_MX25LM51245G</li>
<li>XSPI_MemoryToolbox_M2_M95P32</li>
<li>XSPI_MemoryToolbox_M2_W25Q16JV</li>
<li>XSPI_MemoryToolbox_M2_IS25LP032D</li>
</ul></li>
</ul></li>
<li><strong>Templates</strong> updates
<ul>
<li>OEMiROT_Appli for STM32U3 2M</li>
<li>OEMiROT_Appli_TrustZone and TrustZoneEnabled_NoIsolation for STM32U3 2M</li>
<li>Enabled SMPS for the improvement in low power consumption of all the templates</li>
<li>Enabled ICACHE-1WAY for the improvement in low power consumption of all the templates</li>
</ul></li>
<li><strong>Templates_Board</strong> updates
<ul>
<li>Templates_Board for STM32U3 2M</li>
<li>Enabled SMPS for the improvement in low power consumption</li>
<li>Enabled ICACHE-1WAY for the improvement in low power consumption</li>
</ul></li>
<li><strong>Templates_LL</strong> updates
<ul>
<li>Templates_LL for STM32U3 2M</li>
<li>Enabled ICACHE-1WAY for the improvement in low power consumption</li>
</ul></li>
</ul>
<p><br />
</p>
<h2 id="projects">Projects</h2>
<p><small>The projects flagged by “<span class="icon-st-update"></span>” have changed since the previous release. “<span class="icon-st-add"></span>” are new.</small></p>
<p><br />
</p>
<ul>
<li>The STM32CubeU3 Firmware package comes with a rich set of examples running on STMicroelectronics boards, organized by board and provided with preconfigured projects for the main supported toolchains.</li>
<li><p>The exhaustive list of projects and their short description is provided in this table (<a href="Projects/STM32CubeProjectsList.html">STM32CubeProjectsList.html</a>).</p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">Projects</td>
<td style="text-align: left;">V1.3.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Projects/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table></li>
</ul>
<p><br />
</p>
<h2 id="components">Components</h2>
<p><small>The components flagged by “<span class="icon-st-update"></span>” have changed since the previous release. “<span class="icon-st-add"></span>” are new.</small></p>
<p><br />
</p>
<p><strong>Drivers</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">CMSIS</td>
<td style="text-align: left;">V5.9.0</td>
<td style="text-align: left;"><a href="Drivers/CMSIS/Documentation/index.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">STM32U3xx CMSIS</td>
<td style="text-align: left;">V1.3.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/cmsis-device-u3/blob/main/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">STM32U3xx_HAL_Driver</td>
<td style="text-align: left;">V1.3.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-hal-driver/blob/main/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<p><strong>BSP Drivers</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th>Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">STM32U3xx_NUCLEO</td>
<td style="text-align: left;">V1.1.0 <span class="icon-st-update"></span></td>
<td><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-nucleo-bsp/blob/main/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">Common</td>
<td style="text-align: left;">V7.2.1</td>
<td><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32-bsp-common/blob/v7.2.1/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">mx25lm51245g</td>
<td style="text-align: left;">V3.0.3</td>
<td><a href="Drivers/BSP/Components/mx25lm51245g/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<p><strong>Middlewares</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">mcuboot</td>
<td style="text-align: left;">V1.7.2</td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mcuboot/docs/release-notes.md">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 250722 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mcuboot/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">MbedTLS</td>
<td style="text-align: left;">V3.6.4 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mbedtls/README.md">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 250701 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mbedtls/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">MbedTLS_KWE</td>
<td style="text-align: left;">V1.0.2 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/mbedtls_key_wrap_engine/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">MbedTLS_ALT</td>
<td style="text-align: left;">V1.1.1 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/mbedtls_alt/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">cmsis rtos threadx</td>
<td style="text-align: left;">V1.4.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/cmsis_rtos_threadx/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">FileX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/filex/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 251006 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/filex/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">LevelX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/levelx/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 251006 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/levelx/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">ThreadX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/threadx/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 250822 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/threadx/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">USBX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/usbx/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 260116 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/usbx/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">NetX duo</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/netxduo/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 250619 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/netxduo/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">STM32 TouchSensing Library</td>
<td style="text-align: left;">V2.2.13 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/STM32_TouchSensing_Library/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">STM32 Audio PDM</td>
<td style="text-align: left;">V3.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/STM32_Audio/Addons/PDM/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">openBootloader</td>
<td style="text-align: left;">V6.1.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/OpenBootloader/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">HSP engine</td>
<td style="text-align: left;">V1.0.0 <span class="icon-st-add"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/hsp_engine/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<p><strong>Utilities</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th>Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">ROT_AppliConfig</td>
<td>V1.1.4 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Utilities/PC_Software/ROT_AppliConfig/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">Certificates</td>
<td>V1.0.0</td>
<td style="text-align: left;"><a href="Utilities/Certificates/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<h2 id="development-toolchains-and-compilers">Development Toolchains and Compilers</h2>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Toolchain + ST-Link</th>
<th>Version</th>
<th style="text-align: left;">Patch (if available)</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">IAR Embedded Workbench for ARM (EWARM)</td>
<td>V9.20.1</td>
<td style="text-align: left;"><a href="./Utilities/PC_Software/EWARMv9_STM32U37x-38x_V1.0.0.zip">STM32U3 1M Patch EWARM</a></td>
</tr>
<tr class="even">
<td style="text-align: left;"></td>
<td>V9.20.1</td>
<td style="text-align: left;"><a href="./Utilities/PC_Software/EWARMv9_STM32U3Bx-3Cx_V1.0.0.zip">STM32U3 2M Patch EWARM</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">RealView Microcontroller Development Kit (MDK-ARM)</td>
<td>V5.39 (U375xx/U385xx/U3B5xx/U3C5xx)</td>
<td style="text-align: left;"><a href="./Utilities/PC_Software/Keil.STM32U3xx_DFP.1.2.0.zip">Patch MDK-ARM</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">STM32CubeIDE</td>
<td>V2.1.0</td>
<td style="text-align: left;"></td>
</tr>
</tbody>
</table>
<h2 id="supported-devices-and-boards">Supported Devices and boards</h2>
<ul>
<li>STM32U375xx/STM32U385xx/STM32U3B5xx/STM32U3C5xx devices</li>
<li>NUCLEO-U385RG-Q (Rev.E) board</li>
<li>NUCLEO-U3C5ZI-Q board</li>
<li>STM32U3_CUSTOM_HW board</li>
</ul>
<h2 id="known-limitations">Known limitations</h2>
<ul>
<li>The USBX applications Ux_Host_HID and Ux_Host_HID_Standalone may not operate correctly on MDK-ARM v5.39 (AC6 compiler) when compiled with the -O3 optimization level.</li>
<li>Some non-critical Clang warnings remain in the HSP_HW_IF_SEQ_EVENT_SetConfig_Trigger() function. These warnings have been reviewed and do not affect the functional behavior of the application.</li>
</ul>
<h2 id="dependencies">Dependencies</h2>
<ul>
<li>STM32CubeMX V6.17.0
<ul>
<li>Projects (Examples and Applications) are generated using STM32CubeMX version V6.17.0.</li>
</ul></li>
</ul>
<h2 id="backward-compatibility">Backward compatibility</h2>
<ul>
<li>Not applicable</li>
</ul>
<p><br />
</p>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section3" aria-hidden="true"> <label for="collapse-section3" aria-hidden="true"><strong>V1.2.0 / 04-June-2025</strong></label>
<div>
<h2 id="maintenance-release">Maintenance Release</h2>
<p>Maintenance release of <strong>STM32CubeU3</strong> (STM32Cube for STM32U3 Series) supporting <strong>STM32U385xx/STM32U375xx</strong> devices.</p>
<h2 id="contents-1">Contents</h2>
<ul>
<li><strong>SBOM</strong>
<ul>
<li>Deliver SBOM in <a href="./sbom_cdx.json">CycloneDX v1.5 format</a></li>
</ul></li>
<li><strong>CMSIS</strong>
<ul>
<li>Documentation based on jQuery 1.7.1 removed</li>
</ul></li>
<li><strong>CMSIS Devices Drivers</strong> (Please refer to the <a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/cmsis-device-u3/blob/main/Release_Notes.html">release notes</a> for details)
<ul>
<li>Add PKA on STM32U375xx</li>
<li>Add CCB sanity check feature on STM32U385xx</li>
<li>Swap bit position FLASH MEM and FLASH REG in GTZC1 TZIC registers</li>
</ul></li>
<li><p><strong>HAL/LL Drivers</strong> (Please Refer to the <a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-hal-driver/blob/main/Release_Notes.html">release notes</a> for details)</p>
<ul>
<li><strong>HAL Drivers</strong>
<ul>
<li><strong>HAL FLASH</strong> driver
<ul>
<li>Fix usage of IS_FLASH_SECURE_OPERATION()</li>
<li>Fix FLASH_WaitForLastOperation timeout issue</li>
</ul></li>
<li><strong>HAL GPIO</strong> driver
<ul>
<li>Fix Pull down capability missing in analog mode</li>
</ul></li>
<li><strong>HAL GTZC</strong> driver
<ul>
<li>Add preprocessors for crypto PN</li>
</ul></li>
<li><strong>HAL PWR</strong> driver
<ul>
<li>Removed SRAM powerdown disable APIs</li>
</ul></li>
<li><strong>HAL RCC</strong> driver
<ul>
<li>Fix the inversion between RCC_DAC1SHCLKSOURCE_LSE and RCC_DAC1SHCLKSOURCE_LSI</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>BSP drivers</strong> update
<ul>
<li>add BSP component mx25lm51245g</li>
</ul></li>
<li><strong>Middlewares</strong> updates
<ul>
<li>Update mcuboot to improve robustness</li>
<li>Move to Mbed-TLS V3.6.3 to get fix for CVE-2025-27809 and CVE-2025-27810.</li>
<li>Update MbedTLS_KWE and MbedTLS_ALT with corrections and code enhancement.</li>
</ul></li>
<li><strong>Projects</strong> updates
<ul>
<li><strong>Applications</strong> updates
<ul>
<li>Update OEMiROT_Appli, OEMiROT_Appli_TrustZone, and OEMiROT_Boot</li>
</ul></li>
<li><strong>ROT_Provisionning</strong> updates
<ul>
<li>Update OEMiROT and OEMiRoT_OEMuRoT</li>
</ul></li>
<li><strong>Examples</strong> update
<ul>
<li>Update PWR_ModesSelection</li>
</ul></li>
<li><strong>Templates</strong> updates
<ul>
<li>Add OEMiROT_Appli</li>
<li>Update OEMiROT_Appli_TrustZone and TrustZoneEnabled_NoIsolation</li>
</ul></li>
</ul></li>
</ul>
<p><br />
</p>
<h2 id="projects-1">Projects</h2>
<p><small>The projects flagged by “<span class="icon-st-update"></span>” have changed since the previous release. “<span class="icon-st-add"></span>” are new.</small></p>
<p><br />
</p>
<ul>
<li>The STM32CubeU3 Firmware package comes with a rich set of examples running on STMicroelectronics boards, organized by board and provided with preconfigured projects for the main supported toolchains.</li>
<li><p>The exhaustive list of projects and their short description is provided in this table (<a href="Projects/STM32CubeProjectsList.html">STM32CubeProjectsList.html</a>).</p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">Projects</td>
<td style="text-align: left;">V1.2.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Projects/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table></li>
</ul>
<p><br />
</p>
<h2 id="components-1">Components</h2>
<p><small>The components flagged by “<span class="icon-st-update"></span>” have changed since the previous release. “<span class="icon-st-add"></span>” are new.</small></p>
<p><br />
</p>
<p><strong>Drivers</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">CMSIS</td>
<td style="text-align: left;">V5.9.0</td>
<td style="text-align: left;"><a href="Drivers/CMSIS/Documentation/index.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">STM32U3xx CMSIS</td>
<td style="text-align: left;">V1.2.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/cmsis-device-u3/blob/main/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">STM32U3xx_HAL_Driver</td>
<td style="text-align: left;">V1.2.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-hal-driver/blob/main/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<p><strong>BSP Drivers</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th>Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">STM32U3xx_NUCLEO</td>
<td style="text-align: left;">V1.0.0</td>
<td><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-nucleo-bsp/blob/main/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">Common</td>
<td style="text-align: left;">V7.2.1</td>
<td><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32-bsp-common/blob/v7.2.1/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">mx25lm51245g</td>
<td style="text-align: left;">V3.0.3 <span class="icon-st-add"></span></td>
<td><a href="Drivers/BSP/Components/mx25lm51245g/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<p><strong>Middlewares</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">mcuboot</td>
<td style="text-align: left;">V1.7.2</td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mcuboot/docs/release-notes.md">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 250428 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mcuboot/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">MbedTLS</td>
<td style="text-align: left;">V3.6.3 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mbedtls/README.md">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 250414 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/Third_Party/mbedtls/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">MbedTLS_KWE</td>
<td style="text-align: left;">V1.0.2 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/mbedtls_key_wrap_engine/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">MbedTLS_ALT</td>
<td style="text-align: left;">V1.1.1 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Middlewares/ST/mbedtls_alt/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">cmsis rtos threadx</td>
<td style="text-align: left;">V1.3.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/cmsis_rtos_threadx/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">FileX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/filex/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 240906</td>
<td style="text-align: left;"><a href="Middlewares/ST/filex/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">LevelX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/levelx/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 240906</td>
<td style="text-align: left;"><a href="Middlewares/ST/levelx/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">ThreadX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/threadx/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 240906</td>
<td style="text-align: left;"><a href="Middlewares/ST/threadx/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">USBX</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/usbx/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 240906</td>
<td style="text-align: left;"><a href="Middlewares/ST/usbx/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">NetX duo</td>
<td style="text-align: left;">V6.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/netxduo/README.md">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;"></td>
<td style="text-align: left;">ST modified 240906</td>
<td style="text-align: left;"><a href="Middlewares/ST/netxduo/st_readme.txt">ST release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">STM32 TouchSensing Library</td>
<td style="text-align: left;">V2.2.12</td>
<td style="text-align: left;"><a href="Middlewares/ST/STM32_TouchSensing_Library/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">STM32 Audio PDM</td>
<td style="text-align: left;">V3.4.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/STM32_Audio/Addons/PDM/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">openBootloader</td>
<td style="text-align: left;">V6.1.0</td>
<td style="text-align: left;"><a href="Middlewares/ST/OpenBootloader/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<p><strong>Utilities</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">ROT_AppliConfig</td>
<td style="text-align: left;">V1.1.3</td>
<td style="text-align: left;"><a href="Utilities/PC_Software/ROT_AppliConfig/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">Certificates</td>
<td style="text-align: left;">V1.0.0</td>
<td style="text-align: left;"><a href="Utilities/Certificates/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<h2 id="development-toolchains-and-compilers-1">Development Toolchains and Compilers</h2>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Toolchain + ST-Link</th>
<th>Version</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">IAR Embedded Workbench for ARM (EWARM)</td>
<td>V9.20.1</td>
</tr>
<tr class="even">
<td style="text-align: left;">RealView Microcontroller Development Kit (MDK-ARM)</td>
<td>V5.39</td>
</tr>
<tr class="odd">
<td style="text-align: left;">STM32CubeIDE</td>
<td>V1.18.0</td>
</tr>
</tbody>
</table>
<h2 id="supported-devices-and-boards-1">Supported Devices and boards</h2>
<ul>
<li>STM32U375xx/STM32U385xx devices</li>
<li>NUCLEO-U385RG-Q (Rev.E) board</li>
<li>STM32U3_CUSTOM_HW board</li>
</ul>
<h2 id="known-limitations-1">Known limitations</h2>
<ul>
<li>None</li>
</ul>
<h2 id="dependencies-1">Dependencies</h2>
<ul>
<li>STM32CubeMX V6.15.0
<ul>
<li>Projects (Examples and Applications) are generated using STM32CubeMX version V6.15.0.</li>
</ul></li>
</ul>
<h2 id="backward-compatibility-1">Backward compatibility</h2>
<ul>
<li>Not applicable</li>
</ul>
<p><br />
</p>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2" aria-hidden="true"> <label for="collapse-section2" aria-hidden="true"><strong>V1.1.0 / 05-February-2025</strong></label>
<div>
<h2 id="maintenance-release-1">Maintenance Release</h2>
<p>Maintenance release of <strong>STM32CubeU3</strong> (STM32Cube for STM32U3 Series) supporting <strong>STM32U385xx/STM32U375xx</strong> devices.</p>
<h2 id="contents-2">Contents</h2>
<ul>
<li><strong>CMSIS Devices Drivers</strong> (Please Refer to the <a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/cmsis-device-u3/blob/main/Release_Notes.html">release notes</a> for details)
<ul>
<li>Fix PWR_I3CPUCR2_PG14_I3CPU_Pos value</li>
</ul></li>
<li><p><strong>HAL/LL Drivers</strong> (Please Refer to the <a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-hal-driver/blob/main/Release_Notes.html">release notes</a> for details)</p>
<ul>
<li><strong>HAL Drivers</strong>
<ul>
<li><strong>HAL CCB</strong> driver
<ul>
<li>Update related to wrap/unwrap symmetric key algo</li>
</ul></li>
<li><strong>HAL DMA</strong> driver
<ul>
<li>DMA Callbacks to be initialized to NULL in RESET state</li>
</ul></li>
<li><strong>HAL GPIO</strong> driver
<ul>
<li>Add pull down capability missing in analog mode</li>
</ul></li>
<li><strong>HAL I3C</strong> driver
<ul>
<li>Remove extra parenthesis in function HAL_I3C_Tgt_IBIReq</li>
</ul></li>
<li><strong>HAL IWDG</strong> driver
<ul>
<li>Fix Timeout computation method</li>
</ul></li>
<li><strong>HAL TIM</strong> driver
<ul>
<li>Fix update flag (UIF) clearing in TIM_Base_SetConfig.</li>
</ul></li>
<li><strong>HAL SPI</strong> driver
<ul>
<li>Add protection against wrong transfer size during transmission</li>
<li>Check coherence between data size and DMA TX configuration<br />
</li>
<li>Clear auto suspend flag in HAL_SPI_Receive()</li>
<li>Ensure DMA RX aborts after DMA TX in HAL_SPI_Abort_IT()</li>
<li>Fix CRC computation to fit with standard CRC16-CCITT (XMODEM)</li>
<li>Fix a bug reception when FIFO threshold is set</li>
<li>Improve file aspect</li>
</ul></li>
<li><strong>HAL UART</strong> driver
<ul>
<li>Correct references to HAL_UARTEx_WakeupCallback and to HAL_UART_WAKEUP_CB_ID define, according to series capabilities</li>
<li>Provide accurate position in RxEventCallback when ReceptionToIdle mode is used with DMA, when UART and DMA interrupts process is delayed.</li>
</ul></li>
<li><strong>HAL USB</strong>
<ul>
<li>Fix SA0035</li>
</ul></li>
<li><strong>HAL XSPI</strong> driver
<ul>
<li>Check BUSY flag instead of TC flag in indirect mode to be sure that command is well completed (FIFO flush)</li>
</ul></li>
</ul></li>
<li><strong>LL Drivers</strong> updates
<ul>
<li><strong>LL LPUART</strong> driver
<ul>
<li>Solve Coverity out-of-bound memory access warning in use of LPUART_PRESCALER_TAB array</li>
</ul></li>
<li><strong>LL USART</strong> driver
<ul>
<li>Solve Coverity out-of-bound memory access warning in use of USART_PRESCALER_TAB array<br />
</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>Middlewares</strong> updates
<ul>
<li>Move to Mbed-TLS V3.6.2 to get fix for CVE-2024-4919</li>
</ul></li>
<li><strong>Projects</strong> updates
<ul>
<li><strong>Applications</strong> updates
<ul>
<li>Filex, ThreadX, USBX : update comments and code style</li>
<li>Add OEMiROT_Appli (FULL SECURE)</li>
<li>Add ROT_Provisioning/OEMiRoT_OEMuRoT</li>
<li>Update OEMiROT_Appli_Trustzone and OEMiROT_boot</li>
<li>Update ROT_Provisioning/OEMiRoT</li>
<li>Update Application MbedTLS_HW_ALT</li>
<li>Update Application MbedTLS_SW</li>
</ul></li>
<li><strong>Examples</strong> updates
<ul>
<li>Enhance some comments and configuration in examples.</li>
<li>Add examples demonstrating low power consumption :
<ul>
<li>SPI_FullDuplex_ComDMA_LowPower_Master/Slave</li>
<li>ADF_AudioSoundDetector_LowPower</li>
</ul></li>
</ul></li>
<li><strong>Templates</strong> updates
<ul>
<li>Add OEMiROT_Appli_Trustzone</li>
<li>Enhance some comments</li>
</ul></li>
</ul></li>
<li><p>Deliver SBOM in CycloneDX v1.5 format and Notices file in txt format<br />
<br />
</p></li>
</ul>
<h2 id="projects-2">Projects</h2>
<p><small>The projects flagged by “<span class="icon-st-update"></span>” have changed since the previous release. “<span class="icon-st-add"></span>” are new.</small></p>
<p><br />
</p>
<ul>
<li>The STM32CubeU3 Firmware package comes with a rich set of examples running on STMicroelectronics boards, organized by board and provided with preconfigured projects for the main supported toolchains.</li>
<li><p>The exhaustive list of projects and their short description is provided in this table (<a href="Projects/STM32CubeProjectsList.html">STM32CubeProjectsList.html</a>).</p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">Projects</td>
<td style="text-align: left;">V1.1.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="Projects/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table></li>
</ul>
<p><br />
</p>
<h2 id="components-2">Components</h2>
<p><small>The components flagged by “<span class="icon-st-update"></span>” have changed since the previous release. “<span class="icon-st-add"></span>” are new.</small></p>
<p><br />
</p>
<p><strong>Drivers</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th style="text-align: left;">Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">CMSIS</td>
<td style="text-align: left;">V5.9.0</td>
<td style="text-align: left;"><a href="Drivers/CMSIS/Documentation/index.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">STM32U3xx CMSIS</td>
<td style="text-align: left;">V1.1.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/cmsis-device-u3/blob/main/Release_Notes.html">release notes</a></td>
</tr>
<tr class="odd">
<td style="text-align: left;">STM32U3xx_HAL_Driver</td>
<td style="text-align: left;">V1.1.0 <span class="icon-st-update"></span></td>
<td style="text-align: left;"><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-hal-driver/blob/main/Release_Notes.html">release notes</a></td>
</tr>
</tbody>
</table>
<p><br />
</p>
<p><strong>BSP Drivers</strong></p>
<table>
<thead>
<tr class="header">
<th style="text-align: left;">Name</th>
<th style="text-align: left;">Version</th>
<th>Release notes</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td style="text-align: left;">STM32U3xx_NUCLEO</td>
<td style="text-align: left;">V1.0.0</td>
<td><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32u3xx-nucleo-bsp/blob/main/Release_Notes.html">release notes</a></td>
</tr>
<tr class="even">
<td style="text-align: left;">Common</td>
<td style="text-align: left;">V7.2.1</td>
<td><a href="https://htmlpreview.github.io/?https://github.com/STMicroelectronics/stm32-bsp-common/blob/v7.2.1/Release_Notes.html">release notes</a></td>
</tr>
</tbody>