/* Must use 32 bit timer ~12ns tick, 84MHz, 1s period.  */
HAL_StatusTypeDef tick_timer_init()
/* Must use 32 bit timer ~12ns tick, 84MHz, 1s period.  */
HAL_StatusTypeDef tick_timer_init()
{
        return HAL_TIM_Base_Start_IT(&h_tick_tim);
    }
    return status;
}