ocess, then the SysTick interrupt must have higher
priority (numerically lower) than the peripheral interrupt. Otherwise
the caller ISR process will be blocked. To change the SysTick interrupt
priority you have to use HAL_NVIC_SetPriority() function.</p></li>
<li><p>The application needs to ensure that the SysTick time base is
always set to 1 millisecond to have correct HAL operation.</p></li>
</ol>
<h3 id="keywords"><b>Keywords</b></h3>
<p>Memory, FLASH, Erase, Program, Sector, Mass Erase</p>
<h3 id="direc