Hi,
If you are using xTimerCreate API to create a software timer, you need the timer period in ticks as its parameter.
xTimer = xTimerCreate(
"MyTimer", /* Timer name (for debugging purposes) */
pdMS_TO_TICKS(1000), /* Timer period in ticks (1000 ms) */
pdTRUE, /* Periodic timer (will auto-reload) */
(void *)0, /* Timer ID (optional) */
TimerCallback /* Timer callback function */
);
If your ulRunTimeCounter calculates the time in milliseconds, you will need to use the pdMS_TO_TICKS() macro for initializing the software timer.
It depends on the time unit of the ulRunTimeCounter.