diff --git a/software/Power_Pico/User/Tasks/Inc/user_MessageTask.h b/software/Power_Pico/User/Tasks/Inc/user_MessageTask.h
index 16892bb..d639dd3 100644
--- a/software/Power_Pico/User/Tasks/Inc/user_MessageTask.h
+++ b/software/Power_Pico/User/Tasks/Inc/user_MessageTask.h
@@ -5,8 +5,8 @@
 extern "C" {
 #endif
 
-void MessageTask(void *argument);
-
+void MessageReceiveTask(void *argument);
+void MessageSendTask(void *argument);
 
 #ifdef __cplusplus
 }
diff --git a/software/Power_Pico/User/Tasks/Inc/user_TasksInit.h b/software/Power_Pico/User/Tasks/Inc/user_TasksInit.h
index f969542..ff5a3e0 100644
--- a/software/Power_Pico/User/Tasks/Inc/user_TasksInit.h
+++ b/software/Power_Pico/User/Tasks/Inc/user_TasksInit.h
@@ -8,6 +8,12 @@ extern "C" {
 #include "FreeRTOS.h"
 #include "cmsis_os.h"
 
+// 定义一个标志位，表示 ADC 数据已经准备好，可以发送了
+#define FLAG_ADC_HALF_READY  0x0001U  // 0000 0001
+#define FLAG_ADC_FULL_READY  0x0002U  // 0000 0010
+
+extern osThreadId_t MessageSendTaskHandle; // 用于发送 ADC 数据的任务句柄
+
 extern osMessageQueueId_t Key_MessageQueue;
 extern osMessageQueueId_t PD_cmd_MessageQueue;
 extern osMessageQueueId_t PD_handle_event_MsgQueue;
diff --git a/software/Power_Pico/User/Tasks/Src/user_MessageTask.c b/software/Power_Pico/User/Tasks/Src/user_MessageTask.c
index 150e557..3019d40 100644
--- a/software/Power_Pico/User/Tasks/Src/user_MessageTask.c
+++ b/software/Power_Pico/User/Tasks/Src/user_MessageTask.c
@@ -1,5 +1,6 @@
 /* Private includes -----------------------------------------------------------*/
 //includes
+#include "adc.h"
 #include "user_TasksInit.h"
 #include "user_MessageTask.h"
 #include "usbd_cdc_if.h"
@@ -16,11 +17,11 @@
 
 
 /**
-  * @brief  task for check the usart message
+  * @brief  task for receiving messages, such as USB update requests.
   * @param  argument: Not used
   * @retval None
   */
-void MessageTask(void *argument)
+void MessageReceiveTask(void *argument)
 {
 	while(1)
 	{
@@ -40,3 +41,35 @@ void MessageTask(void *argument)
 		osDelay(500);
 	}
 }
+
+/**
+ * @brief  send adc data to PC via USB,
+ * @param  argument: Not used
+ */
+void MessageSendTask(void *argument)
+{
+  uint32_t flags;
+  while (1)
+  {
+    // 1. 等待两个标志中的任意一个 (osFlagsWaitAny)
+    flags = osThreadFlagsWait(FLAG_ADC_HALF_READY | FLAG_ADC_FULL_READY,
+                              osFlagsWaitAny,
+                              osWaitForever);
+
+    // 2. 判断是不是出错了 (比如超时或者传参错误，通常返回值最高位会置1)
+    if (flags & 0x80000000) {
+        continue; // 错误处理
+    }
+
+    // 3. 检查具体是哪个标志位被置位了，然后处理对应的数据
+    if (flags & FLAG_ADC_HALF_READY)
+    {
+        Process_ADC_Chunk(&adc_raw_buffer[0][0], 0);
+    }
+
+    if (flags & FLAG_ADC_FULL_READY)
+    {
+        Process_ADC_Chunk(&adc_raw_buffer[ADC_TIMES][0], 1);
+    }
+  }
+}
diff --git a/software/Power_Pico/User/Tasks/Src/user_TasksInit.c b/software/Power_Pico/User/Tasks/Src/user_TasksInit.c
index 0251ff5..befc38c 100644
--- a/software/Power_Pico/User/Tasks/Src/user_TasksInit.c
+++ b/software/Power_Pico/User/Tasks/Src/user_TasksInit.c
@@ -41,14 +41,22 @@ const osThreadAttr_t HardwareInitTask_attributes = {
   .priority = (osPriority_t) osPriorityHigh,
 };
 
-// message task
-osThreadId_t MessageTaskHandle;
-const osThreadAttr_t MessageTask_attributes = {
-  .name = "MessageTask",
+// message receive task
+osThreadId_t MessageReceiveTaskHandle;
+const osThreadAttr_t MessageReceiveTask_attributes = {
+  .name = "MessageReceiveTask",
   .stack_size = 128 * 1,
   .priority = (osPriority_t) osPriorityNormal2,
 };
 
+// message send task
+osThreadId_t MessageSendTaskHandle;
+const osThreadAttr_t MessageSendTask_attributes = {
+  .name = "MessageSendTask",
+  .stack_size = 128 * 8,
+  .priority = (osPriority_t) osPriorityHigh,
+};
+
 // Key task
 osThreadId_t KeyTaskHandle;
 const osThreadAttr_t KeyTask_attributes = {
@@ -107,7 +115,8 @@ void User_Tasks_Init(void)
   HardwareInitTaskHandle  = osThreadNew(HardwareInitTask, NULL, &HardwareInitTask_attributes);
   PDUFPTaskHandle          = osThreadNew(PDUFPTask, NULL, &PDUFPTask_attributes);
   KeyTaskHandle 			    = osThreadNew(KeyTask, NULL, &KeyTask_attributes);
-  MessageTaskHandle       = osThreadNew(MessageTask, NULL, &MessageTask_attributes);
+  MessageReceiveTaskHandle  = osThreadNew(MessageReceiveTask, NULL, &MessageReceiveTask_attributes);
+  MessageSendTaskHandle     = osThreadNew(MessageSendTask, NULL, &MessageSendTask_attributes);
   LvHandlerTaskHandle     = osThreadNew(LvHandlerTask, NULL, &LvHandlerTask_attributes);
 
   /* add events, ... */