diff --git a/.gitmodules b/.gitmodules
index 3028ac5..be13cc0 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -25,3 +25,9 @@
 [submodule "third_party/stm32cubef4/stm32f4xx_hal_driver"]
 	path = third_party/stm32cubef4/stm32f4xx_hal_driver
 	url = https://github.com/STMicroelectronics/stm32f4xx_hal_driver.git
+[submodule "third_party/stm32cubef4/lwip"]
+	path = third_party/stm32cubef4/lwip
+	url = https://github.com/STMicroelectronics/stm32_mw_lwip.git
+[submodule "third_party/stm32cubef4/freertos"]
+	path = third_party/stm32cubef4/freertos
+	url = https://github.com/STMicroelectronics/stm32_mw_freertos.git
diff --git a/third_party/stm32cubef4/freertos b/third_party/stm32cubef4/freertos
new file mode 160000
index 0000000..c239f63
--- /dev/null
+++ b/third_party/stm32cubef4/freertos
@@ -0,0 +1 @@
+Subproject commit c239f63efc6ad8206e3af531d07eb5228e8ca57b
diff --git a/third_party/stm32cubef4/lwip b/third_party/stm32cubef4/lwip
new file mode 160000
index 0000000..f0d19c3
--- /dev/null
+++ b/third_party/stm32cubef4/lwip
@@ -0,0 +1 @@
+Subproject commit f0d19c3a6e7420248775b5163b8dbf1fc2371331