diff --git a/sdk b/sdk
index 2bc7c25..c48e929 160000
--- a/sdk
+++ b/sdk
@@ -1 +1 @@
-Subproject commit 2bc7c2531028761c80b721b0a4db279448793e66
+Subproject commit c48e9293f0afddf48d57a69f6ce0b55850ca97a4
diff --git a/usrc/project_configs.h b/usrc/project_configs.h
index 8588660..c746ae5 100644
--- a/usrc/project_configs.h
+++ b/usrc/project_configs.h
@@ -1,5 +1,5 @@
 #pragma once
-#define PC_VERSION           105
+#define PC_VERSION           200
 #define PC_MANUFACTURER      "http://www.iflytop.com/"
 #define PC_PROJECT_NAME      "a8000_subboard"
 #define PC_IFLYTOP_ENABLE_OS 1