using STM32L0538, is it possible to make SysTick_Handler count in microseconds not in milliseconds and if it is, where to start?

[DSimp.1]

I'm writing some code with PWM and I'm using very high number of periods in short time causing my LED's to dim very choppy. I think it's not working properly because timer is to fast and counting in milliseconds and I need it to count in microseconds.

[MM..1]

Systick isnt designed to create PWM, for this you need use TIMx with channels and here you can set any times from FCPU period...

[Tesla DeLorean]

Microseconds are faster. Try to explain the problem better. Adjust the Prescaler and Period values to balance the TIM suitably.

Interrupting at 1 MHz is not practical. ​

[DSimp.1]

Well I'm trying to dim 7 LEDS using PWM, but I am using SysTick to create interupts every millisecond and increase integer value by 1, so basically its a clock with 1kHz frequency but my PWM isn't working properly and I think I need clock with 1Mhz frequency, so I'm asking is there any way to make SysTick to interupt every microsecond?

[MM..1]

Learn howto use timer to create PWM. Systick isnt designed to create PWM.

TIMER1 or 2 ... is hardware platform to create perfect PWM.

And for change systick speed you can change one line in code, but need calculate and understand what you do.

  /* Setup SysTick Timer for 1/4ms interrupts  */
  if (SysTick_Config(SystemCoreClock / 4000))
  {
    /* Capture error */
    while (1);
  }