diff --git a/src/system/interrupts.c b/src/system/interrupts.c
--- a/src/system/interrupts.c
+++ b/src/system/interrupts.c
@@ -7,6 +7,7 @@
 
 #include "interrupts.h"
 #include "gpio.h"
+#include "pwmout.h"
 
 
 // Systick interrupt
@@ -46,7 +47,34 @@ void HAL_GPIO_EXTI_Callback(uint16_t GPI
 	}
 }
 
+void TIM1_TRG_COM_TIM17_IRQHandler(void)
+{
+  /* USER CODE BEGIN TIM1_TRG_COM_TIM17_IRQn 0 */
+
+  /* USER CODE END TIM1_TRG_COM_TIM17_IRQn 0 */
+
+  HAL_TIM_IRQHandler(pwmout_get_tim());
+  /* USER CODE BEGIN TIM1_TRG_COM_TIM17_IRQn 1 */
+
+  /* USER CODE END TIM1_TRG_COM_TIM17_IRQn 1 */
+}
 
 
+void HAL_TIM_PWM_PulseFinishedCallback(TIM_HandleTypeDef *htim)
+{
+	if(htim == pwmout_get_tim())
+	{
+		HAL_GPIO_WritePin(SSR, 0);
+		HAL_GPIO_WritePin(LED, 0);
+	}
+}
 
+void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
+{
+	if(htim == pwmout_get_tim())
+	{
+		HAL_GPIO_WritePin(LED, 1);
+		HAL_GPIO_WritePin(SSR, 1);
+	}
+}