diff --git a/Core/Src/dma.c b/Core/Src/dma.c
index 2591c08..004be32 100644
--- a/Core/Src/dma.c
+++ b/Core/Src/dma.c
@@ -40,6 +40,7 @@ void MX_DMA_Init(void)
 
   /* DMA controller clock enable */
   __HAL_RCC_DMA1_CLK_ENABLE();
+  __HAL_RCC_DMA2_CLK_ENABLE();
 
 }
 
diff --git a/Core/Src/stm32f1xx_it.c b/Core/Src/stm32f1xx_it.c
index c6f93e9..805c18d 100644
--- a/Core/Src/stm32f1xx_it.c
+++ b/Core/Src/stm32f1xx_it.c
@@ -61,6 +61,10 @@ extern DMA_HandleTypeDef hdma_adc1;
 extern ADC_HandleTypeDef hadc1;
 extern I2C_HandleTypeDef hi2c1;
 extern RTC_HandleTypeDef hrtc;
+extern DMA_HandleTypeDef hdma_uart4_rx;
+extern DMA_HandleTypeDef hdma_uart4_tx;
+extern DMA_HandleTypeDef hdma_usart1_tx;
+extern DMA_HandleTypeDef hdma_usart1_rx;
 extern UART_HandleTypeDef huart4;
 extern UART_HandleTypeDef huart1;
 extern TIM_HandleTypeDef htim1;
@@ -276,6 +280,34 @@ void DMA1_Channel1_IRQHandler(void)
   /* USER CODE END DMA1_Channel1_IRQn 1 */
 }
 
+/**
+  * @brief This function handles DMA1 channel4 global interrupt.
+  */
+void DMA1_Channel4_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA1_Channel4_IRQn 0 */
+
+  /* USER CODE END DMA1_Channel4_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_usart1_tx);
+  /* USER CODE BEGIN DMA1_Channel4_IRQn 1 */
+
+  /* USER CODE END DMA1_Channel4_IRQn 1 */
+}
+
+/**
+  * @brief This function handles DMA1 channel5 global interrupt.
+  */
+void DMA1_Channel5_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA1_Channel5_IRQn 0 */
+
+  /* USER CODE END DMA1_Channel5_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_usart1_rx);
+  /* USER CODE BEGIN DMA1_Channel5_IRQn 1 */
+
+  /* USER CODE END DMA1_Channel5_IRQn 1 */
+}
+
 /**
   * @brief This function handles ADC1 and ADC2 global interrupts.
   */
@@ -391,6 +423,34 @@ void UART4_IRQHandler(void)
   /* USER CODE END UART4_IRQn 1 */
 }
 
+/**
+  * @brief This function handles DMA2 channel3 global interrupt.
+  */
+void DMA2_Channel3_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA2_Channel3_IRQn 0 */
+
+  /* USER CODE END DMA2_Channel3_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_uart4_rx);
+  /* USER CODE BEGIN DMA2_Channel3_IRQn 1 */
+
+  /* USER CODE END DMA2_Channel3_IRQn 1 */
+}
+
+/**
+  * @brief This function handles DMA2 channel5 global interrupt.
+  */
+void DMA2_Channel5_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA2_Channel5_IRQn 0 */
+
+  /* USER CODE END DMA2_Channel5_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_uart4_tx);
+  /* USER CODE BEGIN DMA2_Channel5_IRQn 1 */
+
+  /* USER CODE END DMA2_Channel5_IRQn 1 */
+}
+
 /**
   * @brief This function handles USB OTG FS global interrupt.
   */
diff --git a/Core/Src/usart.c b/Core/Src/usart.c
index e91d7da..cbb36ca 100644
--- a/Core/Src/usart.c
+++ b/Core/Src/usart.c
@@ -26,11 +26,22 @@
 
 UART_HandleTypeDef huart4;
 UART_HandleTypeDef huart1;
+DMA_HandleTypeDef hdma_uart4_rx;
+DMA_HandleTypeDef hdma_uart4_tx;
+DMA_HandleTypeDef hdma_usart1_tx;
+DMA_HandleTypeDef hdma_usart1_rx;
 
 /* UART4 init function */
 void MX_UART4_Init(void)
 {
 
+  /* USER CODE BEGIN UART4_Init 0 */
+
+  /* USER CODE END UART4_Init 0 */
+
+  /* USER CODE BEGIN UART4_Init 1 */
+
+  /* USER CODE END UART4_Init 1 */
   huart4.Instance = UART4;
   huart4.Init.BaudRate = 56000;
   huart4.Init.WordLength = UART_WORDLENGTH_8B;
@@ -43,6 +54,9 @@ void MX_UART4_Init(void)
   {
     Error_Handler();
   }
+  /* USER CODE BEGIN UART4_Init 2 */
+
+  /* USER CODE END UART4_Init 2 */
 
 }
 /* USART1 init function */
@@ -50,6 +64,13 @@ void MX_UART4_Init(void)
 void MX_USART1_UART_Init(void)
 {
 
+  /* USER CODE BEGIN USART1_Init 0 */
+
+  /* USER CODE END USART1_Init 0 */
+
+  /* USER CODE BEGIN USART1_Init 1 */
+
+  /* USER CODE END USART1_Init 1 */
   huart1.Instance = USART1;
   huart1.Init.BaudRate = 56000;
   huart1.Init.WordLength = UART_WORDLENGTH_8B;
@@ -62,6 +83,9 @@ void MX_USART1_UART_Init(void)
   {
     Error_Handler();
   }
+  /* USER CODE BEGIN USART1_Init 2 */
+
+  /* USER CODE END USART1_Init 2 */
 
 }
 
@@ -92,6 +116,39 @@ void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
     GPIO_InitStruct.Pull = GPIO_NOPULL;
     HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
+    /* UART4 DMA Init */
+    /* UART4_RX Init */
+    hdma_uart4_rx.Instance = DMA2_Channel3;
+    hdma_uart4_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
+    hdma_uart4_rx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_uart4_rx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_uart4_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_uart4_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_uart4_rx.Init.Mode = DMA_NORMAL;
+    hdma_uart4_rx.Init.Priority = DMA_PRIORITY_LOW;
+    if (HAL_DMA_Init(&hdma_uart4_rx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(uartHandle,hdmarx,hdma_uart4_rx);
+
+    /* UART4_TX Init */
+    hdma_uart4_tx.Instance = DMA2_Channel5;
+    hdma_uart4_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_uart4_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_uart4_tx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_uart4_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_uart4_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_uart4_tx.Init.Mode = DMA_NORMAL;
+    hdma_uart4_tx.Init.Priority = DMA_PRIORITY_LOW;
+    if (HAL_DMA_Init(&hdma_uart4_tx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(uartHandle,hdmatx,hdma_uart4_tx);
+
   /* USER CODE BEGIN UART4_MspInit 1 */
 
   /* USER CODE END UART4_MspInit 1 */
@@ -119,6 +176,39 @@ void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
     GPIO_InitStruct.Pull = GPIO_NOPULL;
     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
+    /* USART1 DMA Init */
+    /* USART1_TX Init */
+    hdma_usart1_tx.Instance = DMA1_Channel4;
+    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
+    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
+    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);
+
+    /* USART1_RX Init */
+    hdma_usart1_rx.Instance = DMA1_Channel5;
+    hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
+    hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart1_rx.Init.Mode = DMA_NORMAL;
+    hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
+    if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);
+
   /* USER CODE BEGIN USART1_MspInit 1 */
 
   /* USER CODE END USART1_MspInit 1 */
@@ -142,6 +232,10 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
     */
     HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10|GPIO_PIN_11);
 
+    /* UART4 DMA DeInit */
+    HAL_DMA_DeInit(uartHandle->hdmarx);
+    HAL_DMA_DeInit(uartHandle->hdmatx);
+
     /* UART4 interrupt Deinit */
     HAL_NVIC_DisableIRQ(UART4_IRQn);
   /* USER CODE BEGIN UART4_MspDeInit 1 */
@@ -162,6 +256,10 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
     */
     HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
 
+    /* USART1 DMA DeInit */
+    HAL_DMA_DeInit(uartHandle->hdmatx);
+    HAL_DMA_DeInit(uartHandle->hdmarx);
+
     /* USART1 interrupt Deinit */
     HAL_NVIC_DisableIRQ(USART1_IRQn);
   /* USER CODE BEGIN USART1_MspDeInit 1 */