diff --git a/applications/main/main.c b/applications/main/main.c
index c058cf3..a3664da 100644
--- a/applications/main/main.c
+++ b/applications/main/main.c
@@ -46,8 +46,9 @@ float current;
 float current_origin;
 float adc_value;
 char tiedian_id[3]={0};
+#ifdef MDAX
 uint32_t ctl_data = 0;
-
+#endif
 
 uint32_t primask;