diff --git a/Inc/stm32f4xx_it.h b/Inc/stm32f4xx_it.h
index e77395d..a0eef34 100644
--- a/Inc/stm32f4xx_it.h
+++ b/Inc/stm32f4xx_it.h
@@ -53,6 +53,7 @@ void BusFault_Handler(void);
 void UsageFault_Handler(void);
 void DebugMon_Handler(void);
 void TIM1_UP_TIM10_IRQHandler(void);
+void USART1_IRQHandler(void);
 void TIM6_DAC_IRQHandler(void);
 void ETH_IRQHandler(void);
 /* USER CODE BEGIN EFP */
diff --git a/LWIP.ioc b/LWIP.ioc
index 1c43711..93ce67e 100644
--- a/LWIP.ioc
+++ b/LWIP.ioc
@@ -101,6 +101,7 @@ NVIC.TIM1_UP_TIM10_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:true\:true
 NVIC.TIM6_DAC_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
 NVIC.TimeBase=TIM1_UP_TIM10_IRQn
 NVIC.TimeBaseIP=TIM1
+NVIC.USART1_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
 NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 PA1.Mode=RMII
 PA1.Signal=ETH_REF_CLK
diff --git a/MDK-ARM/LWIP.uvguix.29643 b/MDK-ARM/LWIP.uvguix.29643
index ed2bd4e..e7e43a5 100644
--- a/MDK-ARM/LWIP.uvguix.29643
+++ b/MDK-ARM/LWIP.uvguix.29643
@@ -1838,7 +1838,7 @@
         <Name>Debug</Name>
         <Buttons>
           <Len>2373</Len>
-          <Data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ata>
+          <Data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ata>
         </Buttons>
         <OriginalItems>
           <Len>898</Len>
@@ -1875,7 +1875,7 @@
       <Doc>
         <Name>..\usersrc\usermain.c</Name>
         <ColumnNumber>0</ColumnNumber>
-        <TopLine>59</TopLine>
+        <TopLine>60</TopLine>
         <CurrentLine>93</CurrentLine>
         <Folding>1</Folding>
         <ContractedFolders></ContractedFolders>
diff --git a/Src/stm32f4xx_it.c b/Src/stm32f4xx_it.c
index b599d30..5957f96 100644
--- a/Src/stm32f4xx_it.c
+++ b/Src/stm32f4xx_it.c
@@ -57,6 +57,7 @@
 /* External variables --------------------------------------------------------*/
 extern ETH_HandleTypeDef heth;
 extern TIM_HandleTypeDef htim6;
+extern UART_HandleTypeDef huart1;
 extern TIM_HandleTypeDef htim1;
 
 /* USER CODE BEGIN EV */
@@ -174,6 +175,20 @@ void TIM1_UP_TIM10_IRQHandler(void)
 }
 
 /**
+  * @brief This function handles USART1 global interrupt.
+  */
+void USART1_IRQHandler(void)
+{
+  /* USER CODE BEGIN USART1_IRQn 0 */
+
+  /* USER CODE END USART1_IRQn 0 */
+  HAL_UART_IRQHandler(&huart1);
+  /* USER CODE BEGIN USART1_IRQn 1 */
+
+  /* USER CODE END USART1_IRQn 1 */
+}
+
+/**
   * @brief This function handles TIM6 global interrupt, DAC1 and DAC2 underrun error interrupts.
   */
 void TIM6_DAC_IRQHandler(void)
diff --git a/Src/usart.c b/Src/usart.c
index 85783f5..a3e9e7f 100644
--- a/Src/usart.c
+++ b/Src/usart.c
@@ -80,6 +80,9 @@ void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
     GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
+    /* USART1 interrupt Init */
+    HAL_NVIC_SetPriority(USART1_IRQn, 5, 0);
+    HAL_NVIC_EnableIRQ(USART1_IRQn);
   /* USER CODE BEGIN USART1_MspInit 1 */
 
   /* USER CODE END USART1_MspInit 1 */
@@ -103,6 +106,8 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
     */
     HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
 
+    /* USART1 interrupt Deinit */
+    HAL_NVIC_DisableIRQ(USART1_IRQn);
   /* USER CODE BEGIN USART1_MspDeInit 1 */
 
   /* USER CODE END USART1_MspDeInit 1 */