How to Use Timers using STM32 HAL Library

Timers are versatile peripherals used for time delays, PWM generation, event counting, etc.

Step-by-Step Guide:

  1. Configure Timer in STM32CubeMX:

    • Choose a timer (e.g., TIM2).

    • Set mode (PWM, Time Base, Input Capture, etc.).

  2. Generate Code.

  3. Write Application Code:

HAL_TIM_Base_Start(&htim2);

// With interrupt
HAL_TIM_Base_Start_IT(&htim2);

Tips:

  • Use HAL_TIM_PeriodElapsedCallback() for timer interrupt events.

  • Adjust prescaler and period for desired frequency.