diff --git a/Marlin/src/HAL/STM32F1/HAL_SPI.cpp b/Marlin/src/HAL/STM32F1/HAL_SPI.cpp
index 4d72473e7..550a79dea 100644
--- a/Marlin/src/HAL/STM32F1/HAL_SPI.cpp
+++ b/Marlin/src/HAL/STM32F1/HAL_SPI.cpp
@@ -24,9 +24,6 @@
 /**
  * Software SPI functions originally from Arduino Sd2Card Library
  * Copyright (c) 2009 by William Greiman
- */
-
-/**
  * Adapted to the STM32F1 HAL
  */
 
diff --git a/Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp b/Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp
index f77306a88..658b7cd4a 100644
--- a/Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp
+++ b/Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp
@@ -25,6 +25,8 @@
  * with simple implementations supplied by Marlin.
  */
 
+#ifdef __STM32F1__
+
 #include "../../inc/MarlinConfig.h"
 
 #if ENABLED(IIC_BL24CXX_EEPROM)
@@ -79,3 +81,4 @@ bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t
 }
 
 #endif // IIC_BL24CXX_EEPROM
+#endif // __STM32F1__
diff --git a/Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp b/Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp
index 33dd277ad..ccc3fc537 100644
--- a/Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp
+++ b/Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp
@@ -25,6 +25,8 @@
  * Enable USE_SHARED_EEPROM if not supplied by the framework.
  */
 
+#ifdef __STM32F1__
+
 #include "../../inc/MarlinConfig.h"
 
 #if ENABLED(IIC_BL24CXX_EEPROM)
@@ -49,3 +51,4 @@ uint8_t eeprom_read_byte(uint8_t *pos) {
 }
 
 #endif // IIC_BL24CXX_EEPROM
+#endif // __STM32F1__
diff --git a/Marlin/src/HAL/STM32F1/eeprom_wired.cpp b/Marlin/src/HAL/STM32F1/eeprom_wired.cpp
index b4699d00d..fffd6ccaf 100644
--- a/Marlin/src/HAL/STM32F1/eeprom_wired.cpp
+++ b/Marlin/src/HAL/STM32F1/eeprom_wired.cpp
@@ -17,17 +17,17 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
+
+/**
+ * HAL PersistentStore for STM32F1
+ */
+
 #ifdef __STM32F1__
 
 #include "../../inc/MarlinConfig.h"
 
 #if USE_WIRED_EEPROM
 
-/**
- * PersistentStore for Arduino-style EEPROM interface
- * with simple implementations supplied by Marlin.
- */
-
 #include "../shared/eeprom_if.h"
 #include "../shared/eeprom_api.h"
 
diff --git a/Marlin/src/HAL/STM32F1/msc_sd.cpp b/Marlin/src/HAL/STM32F1/msc_sd.cpp
index 6a4652e46..4f44f2ee9 100644
--- a/Marlin/src/HAL/STM32F1/msc_sd.cpp
+++ b/Marlin/src/HAL/STM32F1/msc_sd.cpp
@@ -13,7 +13,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
-#ifdef USE_USB_COMPOSITE
+#if defined(__STM32F1__) && defined(USE_USB_COMPOSITE)
 
 #include "msc_sd.h"
 #include "SPI.h"
@@ -77,4 +77,4 @@ void MSC_SD_init() {
   #endif
 }
 
-#endif // USE_USB_COMPOSITE
+#endif // __STM32F1__ && USE_USB_COMPOSITE
diff --git a/Marlin/src/HAL/STM32F1/onboard_sd.cpp b/Marlin/src/HAL/STM32F1/onboard_sd.cpp
index da2527173..9c2b128dd 100644
--- a/Marlin/src/HAL/STM32F1/onboard_sd.cpp
+++ b/Marlin/src/HAL/STM32F1/onboard_sd.cpp
@@ -11,6 +11,8 @@
  * Redistributions of source code must retain the above copyright notice.
  */
 
+#ifdef __STM32F1__
+
 #include "../../inc/MarlinConfig.h"
 
 #if SD_CONNECTION_IS(ONBOARD)
@@ -553,3 +555,4 @@ DRESULT disk_read (
 #endif // _DISKIO_IOCTL
 
 #endif // SD_CONNECTION_IS(ONBOARD)
+#endif // __STM32F1__