diff --git a/bspMCU/My_Lwip.c b/bspMCU/My_Lwip.c
index d65b761..7ed4fb8 100644
--- a/bspMCU/My_Lwip.c
+++ b/bspMCU/My_Lwip.c
@@ -58,7 +58,7 @@
  * 宏定义                                       *
  *----------------------------------------------*/
 #define PORT        23        // 监听的端口号
-#define RECV_SIZE   256        // 接收缓冲区大小
+#define RECV_SIZE   1024        // 接收缓冲区大小
 static int connect_fd = -1; //socket套接字
 
 #if 0
@@ -135,12 +135,15 @@ void ShowLWIPstate(void)
     
 void luaprint_talnet(const char *fmt, ...)
 {
-	char temp[RECV_SIZE];
+	static char temp[RECV_SIZE];
     va_list args;
     va_start(args, fmt);
-    vsprintf(temp, fmt, args);
-    write(connect_fd, &temp, strlen(temp));
+    int len = vsprintf(temp, fmt, args);
     va_end(args);
+    if (len > 0 && connect_fd >= 0)
+    {
+        write(connect_fd, temp, len);
+    }
 }
 
 void vTCPServer_Task(void *pvParameters) 
diff --git a/bspMCU/My_freeRTOS.c b/bspMCU/My_freeRTOS.c
index c5604ef..3e064d2 100644
--- a/bspMCU/My_freeRTOS.c
+++ b/bspMCU/My_freeRTOS.c
@@ -68,7 +68,7 @@ void StackOverflowHook(TaskHandle_t xTask, char *pcTaskName)
 
 void ShowTaskList(void)
 {
-    char taskInfoBuffer[1024];
+    static char taskInfoBuffer[1024];
 	vTaskList(taskInfoBuffer);
 	lua_print("Name\t\tState\tPrior\tStack\tNum\n");
 	lua_print("%s", taskInfoBuffer);