diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..1d84c5d
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,7 @@
+[submodule "third_party/XNanoReadLine"]
+	path = third_party/XNanoReadLine
+	url = https://gitee.com/two_salted_eggs/XNanoReadLine.git
+	url = https://github.com/qmjianda/XNanoReadLine.git
+[submodule "third_party/fatfs"]
+	path = third_party/fatfs
+	url = https://github.com/abbrev/fatfs.git
diff --git a/third_party/XNanoReadLine b/third_party/XNanoReadLine
new file mode 160000
index 0000000..8316df9
--- /dev/null
+++ b/third_party/XNanoReadLine
@@ -0,0 +1 @@
+Subproject commit 8316df95b5499035e6f536b417caab095f71c0dd
diff --git a/third_party/fatfs b/third_party/fatfs
new file mode 160000
index 0000000..010b837
--- /dev/null
+++ b/third_party/fatfs
@@ -0,0 +1 @@
+Subproject commit 010b83715f3896827af14b811c77cc1d2edee8c5