t/Src/main.c Main program</li>
<li>WWDG/WWDG_RefreshUntilUserEvent_Init/Src/system_stm32h5xx.c STM32H5xx system source file</li>
</ul>
<h3 id="hardware-and-software-environment"><b>Hardware and Software environment</b></h3>
<ul>
<li><p>This example runs on STM32H503RBTx devices.</p></li>
<li><p>This example has been tested with NUCLEO-H503RB board and can be easily tailored to any other supported device and development board.</p></li>
</ul>
<h3 id="how-to-use-it"><b>How to use it ?</b></h3>
<p>In order to m