MSPM0G3507: Timer in compare mode issue when value compared equals 0

Tool/software:

Hello,

I found an issue with timer specifically with compare mode and updating during zero event while trying to generate PWM signal. When comparing to value 0 (100% PWM duty cycle) signal value instead of being set to high stayed in low state (Fig1). Temporary fix was to instead 0 compare value has been set to 1 (Fig 2), but it is not an ideal scenario. Another idea to fix this issue was to change the update mode to immediate instead of zero event if compared value is equal to 0 (Fig 3), but this is also not a solution without disadvantages, main concern with this is that in case of an event that calculation performed in order to set applicable duty cycle are not fast enough to finish before next zero event that value is skipped when following value is 0.

This issue persists with changed polarity from CCP on compare up set to high to CCP on compare UP set to low.

Methodology to show this issue was to change compare value each period of a timer, from 0 to load value which is 833 with step of 83+/- 1 adjusting for int type. In figures channel 0 is complementary, channel 1 is main, channel 3 is GPIO toggled every instance of changing compare value. Timer used is TIMA1, configurated for center-aligned PWM and CCP set as output action on zero event, frequency of 48 kHz, load value 833

My question is if its normal for timer to misbehave when comparing to 0 or there is an setting for fixing that.

uint16_t instances_counter;
uint16_t compare_value;
uint32_t compare_values[] = {1, 83, 167, 250, 333, 416, 500, 583, 666, 750, 833};
uint32_t tabele_size = sizeof(compare_values)/sizeof(compare_values[0]);

void Timer_Duty_Change( void )
{
   if ( instances_counter < tabele_size)
   {
      compare_value = compare_values[instances_counter];
      instances_counter++;
   }
   else
   {
      instances_counter = 0;
   }

   TIMA1->COUNTERREGS.CC_01[ 1 ] = compare_value;
}