diff --git a/Power_Pico/Core/Src/stm32f4xx_it.c b/Power_Pico/Core/Src/stm32f4xx_it.c
index cea890b..9a49806 100644
--- a/Power_Pico/Core/Src/stm32f4xx_it.c
+++ b/Power_Pico/Core/Src/stm32f4xx_it.c
@@ -22,6 +22,7 @@
 #include "stm32f4xx_it.h"
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
+#include "usart.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -55,8 +56,11 @@
 /* USER CODE END 0 */
 
 /* External variables --------------------------------------------------------*/
+extern DMA_HandleTypeDef hdma_adc1;
 extern DMA_HandleTypeDef hdma_spi2_tx;
 extern TIM_HandleTypeDef htim1;
+extern DMA_HandleTypeDef hdma_usart6_rx;
+extern UART_HandleTypeDef huart6;
 extern TIM_HandleTypeDef htim11;
 
 /* USER CODE BEGIN EV */
@@ -190,6 +194,54 @@ void TIM1_TRG_COM_TIM11_IRQHandler(void)
   /* USER CODE END TIM1_TRG_COM_TIM11_IRQn 1 */
 }
 
+/**
+  * @brief This function handles DMA2 stream0 global interrupt.
+  */
+void DMA2_Stream0_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA2_Stream0_IRQn 0 */
+
+  /* USER CODE END DMA2_Stream0_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_adc1);
+  /* USER CODE BEGIN DMA2_Stream0_IRQn 1 */
+
+  /* USER CODE END DMA2_Stream0_IRQn 1 */
+}
+
+/**
+  * @brief This function handles DMA2 stream1 global interrupt.
+  */
+void DMA2_Stream1_IRQHandler(void)
+{
+  /* USER CODE BEGIN DMA2_Stream1_IRQn 0 */
+
+  /* USER CODE END DMA2_Stream1_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_usart6_rx);
+  /* USER CODE BEGIN DMA2_Stream1_IRQn 1 */
+
+  /* USER CODE END DMA2_Stream1_IRQn 1 */
+}
+
+/**
+  * @brief This function handles USART6 global interrupt.
+  */
+void USART6_IRQHandler(void)
+{
+  /* USER CODE BEGIN USART6_IRQn 0 */
+  if(__HAL_UART_GET_FLAG(&huart6, UART_FLAG_IDLE) != RESET)
+  {
+    __HAL_UART_CLEAR_FLAG(&huart6, UART_FLAG_IDLE);
+    HAL_UART_DMAStop(&huart6);
+    HAL_UART_Receive_DMA(&huart6, uart_receive_str, USART_RX_BUFFER_SIZE);
+  }
+
+  /* USER CODE END USART6_IRQn 0 */
+  HAL_UART_IRQHandler(&huart6);
+  /* USER CODE BEGIN USART6_IRQn 1 */
+
+  /* USER CODE END USART6_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */
diff --git a/Power_Pico/Core/Src/usart.c b/Power_Pico/Core/Src/usart.c
index 360b655..4992a14 100644
--- a/Power_Pico/Core/Src/usart.c
+++ b/Power_Pico/Core/Src/usart.c
@@ -22,9 +22,13 @@
 
 /* USER CODE BEGIN 0 */
 
+// memeory for receive string
+uint8_t uart_receive_str[USART_RX_BUFFER_SIZE + 1];
+
 /* USER CODE END 0 */
 
 UART_HandleTypeDef huart6;
+DMA_HandleTypeDef hdma_usart6_rx;
 
 /* USART6 init function */
 
@@ -80,6 +84,28 @@ void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
     GPIO_InitStruct.Alternate = GPIO_AF8_USART6;
     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
+    /* USART6 DMA Init */
+    /* USART6_RX Init */
+    hdma_usart6_rx.Instance = DMA2_Stream1;
+    hdma_usart6_rx.Init.Channel = DMA_CHANNEL_5;
+    hdma_usart6_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
+    hdma_usart6_rx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart6_rx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart6_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart6_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart6_rx.Init.Mode = DMA_NORMAL;
+    hdma_usart6_rx.Init.Priority = DMA_PRIORITY_LOW;
+    hdma_usart6_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+    if (HAL_DMA_Init(&hdma_usart6_rx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart6_rx);
+
+    /* USART6 interrupt Init */
+    HAL_NVIC_SetPriority(USART6_IRQn, 5, 0);
+    HAL_NVIC_EnableIRQ(USART6_IRQn);
   /* USER CODE BEGIN USART6_MspInit 1 */
 
   /* USER CODE END USART6_MspInit 1 */
@@ -103,6 +129,11 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
     */
     HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11|GPIO_PIN_12);
 
+    /* USART6 DMA DeInit */
+    HAL_DMA_DeInit(uartHandle->hdmarx);
+
+    /* USART6 interrupt Deinit */
+    HAL_NVIC_DisableIRQ(USART6_IRQn);
   /* USER CODE BEGIN USART6_MspDeInit 1 */
 
   /* USER CODE END USART6_MspDeInit 1 */
@@ -111,4 +142,10 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
 
 /* USER CODE BEGIN 1 */
 
+//串口6发送
+void UART6_TX_Send(uint8_t *buffer, uint16_t length)
+{
+  HAL_UART_Transmit(&huart6, buffer, length, 1);
+}
+
 /* USER CODE END 1 */