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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" />
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<title>Release Notes for STM32H750B-DK BSP Driver</title>
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<h1 id="release-notes-for-stm32h750b-dk-bsp-driver"><strong>Release Notes for STM32H750B-DK BSP Driver</strong></h1>
<p>Copyright © 2019 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>The BSP (Board Specific Package) drivers are parts of the STM32Cube package based on the HAL drivers and provide a set of high level APIs relative to the hardware components and features in the evaluation boards, discovery kits and nucleo boards coming with the STM32Cube package for a given STM32 series.</p>
<p>The BSP drivers allow a quick access to the boards’ services using high level APIs and without any specific configuration as the link with the HAL and the external components is done in intrinsic within the drivers.</p>
<p>From project settings points of view, user has only to add the necessary driver’s files in the workspace and call the needed functions from examples. However some low level configuration functions are weak and can be overridden by the applications if user wants to change some BSP drivers default behavior.</p>
</div>
<div class="col-sm-12 col-lg-8">
<h1 id="update-history"><strong>Update History</strong></h1>
<div class="collapse">
<input type="checkbox" id="collapse-section10" checked aria-hidden="true"> <label for="collapse-section10" aria-hidden="true"><strong>V3.3.4 / 27-November-2025</strong></label>
<div>
<h2 id="main-changes">Main Changes</h2>
<ul>
<li>Update LTDC Pins configuration for STM32H750DK.</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section9" aria-hidden="true"> <label for="collapse-section9" aria-hidden="true"><strong>V3.3.3 / 19-February-2024</strong></label>
<div>
<h2 id="main-changes-1">Main Changes</h2>
<ul>
<li>Align the defined symbol “SDRAM_DEVICE_SIZE” with value defined in memory datasheet.</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section8" aria-hidden="true"> <label for="collapse-section8" aria-hidden="true"><strong>V3.3.2 / 12-October-2022</strong></label>
<div>
<h2 id="main-changes-2">Main Changes</h2>
<ul>
<li>Invert argument order between definitions and declarations of I2C4_WriteReg() and I2C4_ReadReg().</li>
<li>Enable SDMMC HW flow control in MX_MMC_SD_Init() API.</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section7" aria-hidden="true"> <label for="collapse-section7" aria-hidden="true"><strong>V3.3.1 / 11-February-2022</strong></label>
<div>
<h2 id="main-changes-3">Main Changes</h2>
<ul>
<li>All source files: update disclaimer to add reference to the new license agreement.</li>
<li>Modified the address calculation in the BSP_LCD_FillRGBRect() function when USE_DMA2D_TO_FILL_RGB_RECT is enabled to suppress the display of a distorted shape instead of a rectangle when trying to draw a rectangle with a bigger height.</li>
<li>Cache maintained operation is included in the BSP_LCD_FillRGBRect() function to solve the display issue when USE_DMA2D_TO_FILL_RGB_RECT is enabled.</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section6" aria-hidden="true"> <label for="collapse-section6" aria-hidden="true"><strong>V3.3.0 / 29-January-2021</strong></label>
<div>
<h2 id="main-changes-4">Main Changes</h2>
<ul>
<li>BSP QSPI : Add explicit definition of “BSP_QSPI_Erase_t” type with 8KB, 64KB and 128KB erase size
<ul>
<li>Notes:
<ul>
<li>The STM32H750B-DK comes with a dual flash QSPI, the erase size for each flash is 4KB, 32KB and 64KB</li>
<li>From BSP top view these two flash are seen as a single one with twice the size</li>
</ul></li>
</ul></li>
<li>BSP LCD: Fix “BSP_LCD_DisplayOn/Off” behavior
<ul>
<li>Configure the LCD BL pin to output and set it to low state in case of display off</li>
<li>Configure the LCD BL pin to AF timer in case of display on (the pin will be then driven by the timer to ensure the desired brightness)</li>
</ul></li>
<li>Minor typo fixes in comments</li>
</ul>
<h2 id="dependencies">Dependencies</h2>
<ul>
<li>Components/common v7.0.0</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section5" aria-hidden="true"> <label for="collapse-section5" aria-hidden="true"><strong>V3.2.0 / 29-September-2020</strong></label>
<div>
<h2 id="main-changes-5">Main Changes</h2>
<ul>
<li>Fix typo in BSP_PB_Init API implementation regarding EXTI button NVIC priority setting</li>
<li>Add License.md file</li>
</ul>
<h2 id="dependencies-1">Dependencies</h2>
<ul>
<li>Components/common v7.0.0</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section4" aria-hidden="true"> <label for="collapse-section4" aria-hidden="true"><strong>V3.1.0 / 30-April-2020</strong></label>
<div>
<h2 id="main-changes-6">Main Changes</h2>
<ul>
<li>Update BSP_BUS APIs with protection against RTOS multithread usage (under BSP_USE_CMSIS_OS pre-processor conditional define)</li>
</ul>
<h2 id="dependencies-2">Dependencies</h2>
<ul>
<li>Components/common v7.0.0</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section3" aria-hidden="true"> <label for="collapse-section3" aria-hidden="true"><strong>V3.0.0 / 25-February-2020</strong></label>
<div>
<h2 id="main-changes-7">Main Changes</h2>
<ul>
<li>Rename GUI_Drv_t into UTILS_LCD_Drv_t</li>
</ul>
<h2 id="backward-compatibility">Backward Compatibility</h2>
<ul>
<li>This version breaks the compatibility with previous versions</li>
</ul>
<h2 id="dependencies-3">Dependencies</h2>
<ul>
<li>Components/common v7.0.0</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section2" aria-hidden="true"> <label for="collapse-section2" aria-hidden="true"><strong>V2.0.0 / 25-November-2019</strong></label>
<div>
<h2 id="main-changes-8">Main Changes</h2>
<ul>
<li>First official release of STM32H750B-DK BSP drivers in line with STM32Cube BSP drivers development guidelines (UM2298)</li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1" aria-hidden="true"> <label for="collapse-section1" aria-hidden="true"><strong>V1.0.0 / 05-April-2019</strong></label>
<div>
<h2 id="main-changes-9">Main Changes</h2>
<ul>
<li>First official release</li>
</ul>
</div>
</div>
</div>
</div>
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