diff --git a/Inc/general_tim.h b/Inc/general_tim.h
index e2ef945..234e2fb 100644
--- a/Inc/general_tim.h
+++ b/Inc/general_tim.h
@@ -186,7 +186,9 @@ typedef struct // struct with variables for encoder
   * @{
   */
 
-#define TIM_FreqToTick(_freq_, _timfreqMHz_)    ((1000000*_timfreqMHz_)/_freq_)
+#define TIM_FreqToTick(_freq_, _timfreqMHz_)    ((1000000*(_timfreqMHz_))/(_freq_))
+#define TIM_MillisToTick(_ms_, _timfreqMHz_)    ((uint32_t)((_ms_) * 1000UL * (_timfreqMHz_)))
+#define TIM_MicrosToTick(_us_, _timfreqMHz_)    ((uint32_t)((_us_) * (_timfreqMHz_)))
 
 /* Initialize TIM with TIM_SettingsTypeDef structure */
 HAL_StatusTypeDef TIM_Base_Init(TIM_SettingsTypeDef* stim);