diff --git a/Core/Inc/stm32f4xx_it.h b/Core/Inc/stm32f4xx_it.h
index 631210e..c6dcffa 100644
--- a/Core/Inc/stm32f4xx_it.h
+++ b/Core/Inc/stm32f4xx_it.h
@@ -56,6 +56,7 @@ void SysTick_Handler(void);
 void EXTI0_IRQHandler(void);
 void DMA1_Stream5_IRQHandler(void);
 void TIM2_IRQHandler(void);
+void TIM7_IRQHandler(void);
 void OTG_FS_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
diff --git a/Core/Inc/tim.h b/Core/Inc/tim.h
index be40ddf..158bc7b 100644
--- a/Core/Inc/tim.h
+++ b/Core/Inc/tim.h
@@ -36,12 +36,15 @@ extern TIM_HandleTypeDef htim2;
 
 extern TIM_HandleTypeDef htim6;
 
+extern TIM_HandleTypeDef htim7;
+
 /* USER CODE BEGIN Private defines */
 
 /* USER CODE END Private defines */
 
 void MX_TIM2_Init(void);
 void MX_TIM6_Init(void);
+void MX_TIM7_Init(void);
 
 /* USER CODE BEGIN Prototypes */
 
diff --git a/Core/Src/dac.c b/Core/Src/dac.c
index e64ad2f..ede3e65 100644
--- a/Core/Src/dac.c
+++ b/Core/Src/dac.c
@@ -52,7 +52,6 @@ void MX_DAC_Init(void)
   /** DAC channel OUT1 config
   */
   sConfig.DAC_Trigger = DAC_TRIGGER_T6_TRGO;
-//  sConfig.DAC_Trigger = DAC_TRIGGER_NONE;
   sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
   if (HAL_DAC_ConfigChannel(&hdac, &sConfig, DAC_CHANNEL_1) != HAL_OK)
   {
diff --git a/Core/Src/main.c b/Core/Src/main.c
index 3c2f031..e97fee1 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -95,6 +95,7 @@ int main(void)
   MX_DAC_Init();
   MX_TIM2_Init();
   MX_TIM6_Init();
+  MX_TIM7_Init();
   /* USER CODE BEGIN 2 */
 
   /* USER CODE END 2 */
diff --git a/Core/Src/stm32f4xx_it.c b/Core/Src/stm32f4xx_it.c
index d85a3c9..ebd0a25 100644
--- a/Core/Src/stm32f4xx_it.c
+++ b/Core/Src/stm32f4xx_it.c
@@ -60,6 +60,7 @@
 extern PCD_HandleTypeDef hpcd_USB_OTG_FS;
 extern DMA_HandleTypeDef hdma_dac1;
 extern TIM_HandleTypeDef htim2;
+extern TIM_HandleTypeDef htim7;
 /* USER CODE BEGIN EV */
 
 /* USER CODE END EV */
@@ -226,6 +227,20 @@ void TIM2_IRQHandler(void)
   /* USER CODE END TIM2_IRQn 1 */
 }
 
+/**
+  * @brief This function handles TIM7 global interrupt.
+  */
+void TIM7_IRQHandler(void)
+{
+  /* USER CODE BEGIN TIM7_IRQn 0 */
+
+  /* USER CODE END TIM7_IRQn 0 */
+  HAL_TIM_IRQHandler(&htim7);
+  /* USER CODE BEGIN TIM7_IRQn 1 */
+
+  /* USER CODE END TIM7_IRQn 1 */
+}
+
 /**
   * @brief This function handles USB On The Go FS global interrupt.
   */
diff --git a/Core/Src/tim.c b/Core/Src/tim.c
index 3848616..ef8990f 100644
--- a/Core/Src/tim.c
+++ b/Core/Src/tim.c
@@ -26,11 +26,12 @@
 
 TIM_HandleTypeDef htim2;
 TIM_HandleTypeDef htim6;
-
+TIM_HandleTypeDef htim7;
 
 /* TIM2 init function */
 void MX_TIM2_Init(void)
 {
+
   /* USER CODE BEGIN TIM2_Init 0 */
 
   /* USER CODE END TIM2_Init 0 */
@@ -99,6 +100,39 @@ void MX_TIM6_Init(void)
 
   /* USER CODE END TIM6_Init 2 */
 
+}
+/* TIM7 init function */
+void MX_TIM7_Init(void)
+{
+
+  /* USER CODE BEGIN TIM7_Init 0 */
+
+  /* USER CODE END TIM7_Init 0 */
+
+  TIM_MasterConfigTypeDef sMasterConfig = {0};
+
+  /* USER CODE BEGIN TIM7_Init 1 */
+
+  /* USER CODE END TIM7_Init 1 */
+  htim7.Instance = TIM7;
+  htim7.Init.Prescaler = 0;
+  htim7.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim7.Init.Period = 65535;
+  htim7.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE;
+  if (HAL_TIM_Base_Init(&htim7) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
+  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
+  if (HAL_TIMEx_MasterConfigSynchronization(&htim7, &sMasterConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN TIM7_Init 2 */
+
+  /* USER CODE END TIM7_Init 2 */
+
 }
 
 void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
@@ -130,6 +164,21 @@ void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
 
   /* USER CODE END TIM6_MspInit 1 */
   }
+  else if(tim_baseHandle->Instance==TIM7)
+  {
+  /* USER CODE BEGIN TIM7_MspInit 0 */
+
+  /* USER CODE END TIM7_MspInit 0 */
+    /* TIM7 clock enable */
+    __HAL_RCC_TIM7_CLK_ENABLE();
+
+    /* TIM7 interrupt Init */
+    HAL_NVIC_SetPriority(TIM7_IRQn, 5, 0);
+    HAL_NVIC_EnableIRQ(TIM7_IRQn);
+  /* USER CODE BEGIN TIM7_MspInit 1 */
+
+  /* USER CODE END TIM7_MspInit 1 */
+  }
 }
 
 void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
@@ -160,6 +209,20 @@ void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
 
   /* USER CODE END TIM6_MspDeInit 1 */
   }
+  else if(tim_baseHandle->Instance==TIM7)
+  {
+  /* USER CODE BEGIN TIM7_MspDeInit 0 */
+
+  /* USER CODE END TIM7_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_TIM7_CLK_DISABLE();
+
+    /* TIM7 interrupt Deinit */
+    HAL_NVIC_DisableIRQ(TIM7_IRQn);
+  /* USER CODE BEGIN TIM7_MspDeInit 1 */
+
+  /* USER CODE END TIM7_MspDeInit 1 */
+  }
 }
 
 /* USER CODE BEGIN 1 */