diff --git a/Inc/stm32f4xx_it.h b/Inc/stm32f4xx_it.h
index a0eef34..b541375 100644
--- a/Inc/stm32f4xx_it.h
+++ b/Inc/stm32f4xx_it.h
@@ -52,6 +52,7 @@ void MemManage_Handler(void);
 void BusFault_Handler(void);
 void UsageFault_Handler(void);
 void DebugMon_Handler(void);
+void EXTI2_IRQHandler(void);
 void TIM1_UP_TIM10_IRQHandler(void);
 void USART1_IRQHandler(void);
 void TIM6_DAC_IRQHandler(void);
diff --git a/LWIP.ioc b/LWIP.ioc
index 1b0e4f8..a19ae5f 100644
--- a/LWIP.ioc
+++ b/LWIP.ioc
@@ -87,6 +87,7 @@ MxDb.Version=DB.6.0.70
 NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.ETH_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
+NVIC.EXTI2_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
 NVIC.ForceEnableDMAVector=true
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
diff --git a/Src/gpio.c b/Src/gpio.c
index 0f77f97..7f871a3 100644
--- a/Src/gpio.c
+++ b/Src/gpio.c
@@ -85,6 +85,10 @@ void MX_GPIO_Init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(ETH_RST_GPIO_Port, &GPIO_InitStruct);
 
+  /* EXTI interrupt init*/
+  HAL_NVIC_SetPriority(EXTI2_IRQn, 5, 0);
+  HAL_NVIC_EnableIRQ(EXTI2_IRQn);
+
 }
 
 /* USER CODE BEGIN 2 */
diff --git a/Src/stm32f4xx_it.c b/Src/stm32f4xx_it.c
index 5957f96..06fe9aa 100644
--- a/Src/stm32f4xx_it.c
+++ b/Src/stm32f4xx_it.c
@@ -161,6 +161,20 @@ void DebugMon_Handler(void)
 /******************************************************************************/
 
 /**
+  * @brief This function handles EXTI line2 interrupt.
+  */
+void EXTI2_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI2_IRQn 0 */
+
+  /* USER CODE END EXTI2_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_2);
+  /* USER CODE BEGIN EXTI2_IRQn 1 */
+
+  /* USER CODE END EXTI2_IRQn 1 */
+}
+
+/**
   * @brief This function handles TIM1 update interrupt and TIM10 global interrupt.
   */
 void TIM1_UP_TIM10_IRQHandler(void)