diff --git a/bsp/stm32/libraries/STM32F4xx_HAL/SConscript b/bsp/stm32/libraries/STM32F4xx_HAL/SConscript
index 375bf546f88b77e63eae01da15dee639e635a5b1..0cdbe9b3b0df8efdc30b869c67c35c7e6feb01f5 100644
--- a/bsp/stm32/libraries/STM32F4xx_HAL/SConscript
+++ b/bsp/stm32/libraries/STM32F4xx_HAL/SConscript
@@ -21,7 +21,6 @@ STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_pwr_ex.c
 STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc.c
 STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rcc_ex.c
 STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_rng.c
-STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sram.c
 ''')
 
 if GetDepend(['RT_USING_PIN']):
@@ -90,6 +89,10 @@ if GetDepend(['BSP_USING_SDRAM']):
     src += ['STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fsmc.c']
     src += ['STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sdram.c']
 
+if GetDepend(['BSP_USING_EXT_FMC_IO']):
+    src += ['STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_fmc.c']
+    src += ['STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sram.c']
+
 if GetDepend(['BSP_USING_ON_CHIP_FLASH']):
     src += ['STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash.c']
     src += ['STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_flash_ex.c']