Hello @GComes
First let me thank you for posting.
The choice of the prescaler and period values in the STM32 timer configuration can indeed have an impact on the system behavior. Let's understand how each parameter affects the timer operation:
1. Prescaler: The prescaler divides the timer clock frequency to generate the timer input frequency. It determines how fast the timer counts. A higher prescaler value will result in a slower counting rate, meaning the timer will take more time to reach the overflow or update event. Conversely, a lower prescaler value will make the timer count faster.
2. Period: The period determines the value at which the timer will overflow or generate an update event. It represents the maximum value the timer counter can reach before it overflows and restarts from zero. A higher period value corresponds to a longer counting time before the overflow or update event occurs. On the other hand, a lower period value will result in a shorter counting time.
If you choose a higher prescaler value and a lower period, the timer will count at a slower rate, resulting in a lower update event frequency. This can be advantageous if you want to reduce the interrupt load on the system or if you require less frequent updates.
Conversely, if you choose a lower prescaler value and a higher period, the timer will count at a faster rate, resulting in a higher update event frequency. This can be beneficial if you need more frequent updates or if you have time-critical operations that rely on precise timing.
Consider your system requirements, the desired update rate, and the processing capabilities of your STM32 microcontroller to determine the most suitable combination of prescaler and period values for your application.
Ghofrane
