diff --git a/.gitmodules b/.gitmodules
index f6357a9..1fead1a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "zes8p5066lib"]
 	path = zes8p5066lib
 	url = zwsd@192.168.1.3:manufacturer_eastsoft/zes8p5066lib.git
+[submodule "CMSIS"]
+	path = CMSIS
+	url = zwsd@192.168.1.3:manufacturer_eastsoft/ES8P5066_CMSIS.git
diff --git a/CMSIS b/CMSIS
new file mode 160000
index 0000000..ebdb7af
--- /dev/null
+++ b/CMSIS
@@ -0,0 +1 @@
+Subproject commit ebdb7afd574de627a718687547e86185a8a4f365