diff --git a/bsl/csl/interfaces/timer.h b/bsl/csl/interfaces/timer.h
index 69a7e2f..0d453f1 100644
--- a/bsl/csl/interfaces/timer.h
+++ b/bsl/csl/interfaces/timer.h
@@ -46,6 +46,20 @@ typedef enum {
 	onePulse
 } timerMode_t;
 
+/*! 
+ * Output compare modes.
+ */
+typedef enum {
+	frozen, /*!< Pin update is **de-activated** even when a compare match happens */  
+	high_on_match, /*!< Pin goes **high** when a compare match occurs */
+	low_on_match, /*!< Pin goes **low** when a compare match occurs */
+	toggle, /*!< Pin **toggles** when a compare match occurs */
+	inactive_force_high, /*!< Pin if forced **high** */
+	inactive_force_low, /*!< Pin if forced **low** */
+	pwm_normal, /*!< Standart PWM mode */ 
+	pwm_inverted /*!< Inverted PWM mode */
+};
+
 /*! 
  * Reset the timer to its default state.
  */
@@ -69,7 +83,15 @@ void timerClearUpdateInterrupt(timerNo_t timer);
 void timerClearCounter(timerNo_t timer); 
 
 /* Second stage configuration */
-void timerInit(timerNo_t timer, uint32_t prescaler, uint32_t period, timerCountDirection_t direction, timerMode_t mode);
+void timerInitCounter( timerNo_t timer, 
+						uint32_t prescaler, 
+						uint32_t period, 
+						timerCountDirection_t direction);
+
+void timerInitPwm( timerNo_t timer, 
+						uint32_t prescaler, 
+						uint32_t period, 
+						timerCountDirection_t direction);
 
 void timerSetHz(timerNo_t timer, uint16_t hz); 
 void timerSetMs(timerNo_t timer, uint16_t ms); 
diff --git a/bsl/csl/stm32f042/Src/timer.c b/bsl/csl/stm32f042/Src/timer.c
index b2fd084..1c18330 100644
--- a/bsl/csl/stm32f042/Src/timer.c
+++ b/bsl/csl/stm32f042/Src/timer.c
@@ -89,15 +89,14 @@ void timerClearUpdateInterrupt(timerNo_t timer)
 
 
 /* Second stage configuration */
-void timerInit(	timerNo_t timer, 
-				uint32_t prescaler,
-				uint32_t period, 
-				timerCountDirection_t direction,
-				timerMode_t mode)
+void timerInitCounter (	timerNo_t timer, 
+						uint32_t prescaler,
+						uint32_t period, 
+						timerCountDirection_t direction)
 {
 	timerActivateBus(timer);
 	timerReset(timer); 
-	timerSetMode(timer, mode);
+	timerSetMode(timer, counter);
 	timerSetCountDirection(timer,direction);
 	timerSetPrescaler(timer, prescaler);
 	timerSetAutoReload(timer, period);
diff --git a/main.cpp b/main.cpp
index fc1341f..84f3638 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,7 +8,7 @@
 void timer_test(timerNo_t timer, pinNo_t pin)
 {
 	
-	timerInit(timer, 4000, 999, downCounting, counter); 
+	timerInitCounter(timer, 4000, 999, downCounting); 
 	timerSart(timer);
 
 	for(int i = 0; i < 10 ; i++)