diff --git a/.gitmodules b/.gitmodules
index a7b4d68..9a2a00f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "STM32F10X_Lib"]
 	path = STM32F10X_Lib
 	url = https://github.com/shawnchain/STM32F10X_Lib.git
+[submodule "STM32F7XX_Lib"]
+	path = STM32F7XX_Lib
+	url = https://github.com/g4klx/STM32F7XX_Lib.git
diff --git a/STM32F7XX_Lib b/STM32F7XX_Lib
new file mode 160000
index 0000000..6241f7c
--- /dev/null
+++ b/STM32F7XX_Lib
@@ -0,0 +1 @@
+Subproject commit 6241f7c05eeb6cf1ecd16ca0274bf310efee853f