n is used to configure the system clock for STM32H563ZITx Devices : The CPU at 250 MHz</p>
<p>The TIM1CLK frequency is set to SystemCoreClock (Hz), the Prescaler is 0, so the TIM1 counter clock is SystemCoreClock (Hz).</p>
<p>SystemCoreClock is set to 250 MHz for STM32H563ZITx Devices.</p>
<p>TIM1 is configured in Input Capture Mode: the external signal is connected to TIM1 Channel2 used as input pin. To measure the frequency we use the TIM1 CC interrupt request, so in the TIM1 CC IRQHandler routine, the fr