diff --git a/Core/Inc/flash_config.h b/Core/Inc/flash_config.h
index 916ec27..1c96e0e 100644
--- a/Core/Inc/flash_config.h
+++ b/Core/Inc/flash_config.h
@@ -9,7 +9,7 @@
 typedef struct {
     uint32_t magic;           // 魔数，用于验证配置有效性
     wiz_NetInfo net_config;   // 网络配置
-    DeviceParam device_param; // 设备参数
+    DeviceParam_t device_param; // 设备参数
     uint32_t checksum;        // 校验和
 } FlashConfig_t;
 
diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index 1dd54fb..8f9ec42 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -56,6 +56,9 @@ extern volatile uint8_t motorRxEnd;
 /* Exported functions prototypes ---------------------------------------------*/
 void Error_Handler(void);
 void transDataToMotorValve(uint8_t *data, uint16_t len);
+void transDataToHost(uint8_t *data, uint16_t len);
+uint8_t readDataFromMotorValve(uint8_t *data, uint16_t len, uint32_t timeout);
+
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */
diff --git a/Core/Src/http_server.c b/Core/Src/http_server.c
index 1ac7530..9217a32 100644
--- a/Core/Src/http_server.c
+++ b/Core/Src/http_server.c
@@ -182,7 +182,7 @@ static void handle_status_request(uint8_t sn)
         "\"errorCode\":%d,"
         "\"initStatus\":%d"
         "}",
-        deviceStatus.deviceStatus,
+        deviceStatus.sensorStatus,
         deviceStatus.valves.angle1,
         deviceStatus.valves.angle2,
         deviceStatus.pumps.status1,
diff --git a/Core/Src/main.c b/Core/Src/main.c
index f6ab2ff..e29443a 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -38,7 +38,7 @@
 
 /* Private define ------------------------------------------------------------*/
 /* USER CODE BEGIN PD */
-
+#define HOST_USE_DMA 1
 /* USER CODE END PD */
 
 /* Private macro -------------------------------------------------------------*/
@@ -64,10 +64,13 @@ void transDataToHost(uint8_t *data, uint16_t len)
 {
   // 开启uart3 dma
   HAL_GPIO_WritePin(DIR1_GPIO_Port, DIR1_Pin, GPIO_PIN_SET);
-  // HAL_Delay(100);
+  #ifdef HOST_USE_DMA
+  HAL_UART_Transmit_DMA(&huart1, data, len);
+  #else
   HAL_UART_Transmit(&huart1, data, len, 1000);
   HAL_GPIO_WritePin(DIR1_GPIO_Port, DIR1_Pin, GPIO_PIN_RESET);
-  // HAL_Delay(100);
+  #endif
+
 }
 
 void transDataToMotorValve(uint8_t *data, uint16_t len)
@@ -80,6 +83,11 @@ void transDataToMotorValve(uint8_t *data, uint16_t len)
   HAL_GPIO_WritePin(DIR2_GPIO_Port, DIR2_Pin, GPIO_PIN_RESET);
   // HAL_Delay(100);
 }
+
+uint8_t readDataFromMotorValve(uint8_t *data, uint16_t len, uint32_t timeout) 
+{
+   return HAL_UART_Receive(&huart2, data, len, timeout);
+}
 /* USER CODE END PFP */
 
 /* Private user code ---------------------------------------------------------*/
@@ -205,6 +213,16 @@ void SystemClock_Config(void)
 }
 
 /* USER CODE BEGIN 4 */
+// DMA 传输完成回调函数
+void HAL_DMA_XferCpltCallback(DMA_HandleTypeDef *hdma)
+{
+    if (hdma->Instance == DMA1_Channel4){
+        // 在此处处理 DMA 发送完成的逻辑，例如切换 RS485 状态
+        #ifdef HOST_USE_DMA
+        HAL_GPIO_WritePin(DIR1_GPIO_Port, DIR1_Pin, GPIO_PIN_RESET);
+        #endif
+    }
+}
 /* USER CODE END 4 */
 
 /**