diff --git a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_MICRO/stm32l475xx.sct b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_MICRO/stm32l475xx.sct
index 39fbb380c4..a657759b32 100644
--- a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_MICRO/stm32l475xx.sct
+++ b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_MICRO/stm32l475xx.sct
@@ -1,3 +1,4 @@
+#! armcc -E
 ; Scatter-Loading Description File
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Copyright (c) 2015, STMicroelectronics
@@ -27,10 +28,18 @@
 ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-; 1MB FLASH (0x100000) + 128KB SRAM (0x20000)
-LR_IROM1 0x08000000 0x100000  {    ; load region size_region
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x08000000
+#endif
 
-  ER_IROM1 0x08000000 0x100000  {  ; load address = execution address
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x100000
+#endif
+
+; 1MB FLASH (0x100000) + 128KB SRAM (0x20000)
+LR_IROM1 MBED_APP_START MBED_APP_SIZE  {    ; load region size_region
+
+  ER_IROM1 MBED_APP_START MBED_APP_SIZE  {  ; load address = execution address
    *.o (RESET, +First)
    *(InRoot$$Sections)
    .ANY (+RO)
diff --git a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_STD/stm32l475xx.sct b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_STD/stm32l475xx.sct
index 39fbb380c4..a657759b32 100644
--- a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_STD/stm32l475xx.sct
+++ b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_ARM_STD/stm32l475xx.sct
@@ -1,3 +1,4 @@
+#! armcc -E
 ; Scatter-Loading Description File
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Copyright (c) 2015, STMicroelectronics
@@ -27,10 +28,18 @@
 ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-; 1MB FLASH (0x100000) + 128KB SRAM (0x20000)
-LR_IROM1 0x08000000 0x100000  {    ; load region size_region
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x08000000
+#endif
 
-  ER_IROM1 0x08000000 0x100000  {  ; load address = execution address
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x100000
+#endif
+
+; 1MB FLASH (0x100000) + 128KB SRAM (0x20000)
+LR_IROM1 MBED_APP_START MBED_APP_SIZE  {    ; load region size_region
+
+  ER_IROM1 MBED_APP_START MBED_APP_SIZE  {  ; load address = execution address
    *.o (RESET, +First)
    *(InRoot$$Sections)
    .ANY (+RO)
diff --git a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_GCC_ARM/STM32L475XX.ld b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_GCC_ARM/STM32L475XX.ld
index d4f7965d54..ee234161e0 100644
--- a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_GCC_ARM/STM32L475XX.ld
+++ b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_GCC_ARM/STM32L475XX.ld
@@ -1,7 +1,15 @@
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x08000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 1024k
+#endif
+
 /* Linker script to configure memory regions. */
 MEMORY
 { 
-  FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
+  FLASH (rx)   : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   SRAM2 (rwx)  : ORIGIN = 0x10000188, LENGTH = 32k - 0x188
   SRAM1 (rwx)  : ORIGIN = 0x20000000, LENGTH = 96k
 }
diff --git a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_IAR/stm32l475xx.icf b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_IAR/stm32l475xx.icf
index 10ae3e5766..15c4254b3f 100644
--- a/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_IAR/stm32l475xx.icf
+++ b/targets/TARGET_STM/TARGET_STM32L4/TARGET_STM32L475xG/device/TOOLCHAIN_IAR/stm32l475xx.icf
@@ -1,13 +1,16 @@
-/* [ROM = 1024kb = 0x100000] */
-define symbol __intvec_start__     = 0x08000000;
-define symbol __region_ROM_start__ = 0x08000000;
-define symbol __region_ROM_end__   = 0x080FFFFF;
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x08000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x100000; }
 
-/* [RAM = 128kb = 96kb + 32kb = 0x20000] */
+/* [ROM = 1024kb = 0x100000] */
+define symbol __intvec_start__     = MBED_APP_START;
+define symbol __region_ROM_start__ = MBED_APP_START;
+define symbol __region_ROM_end__   = MBED_APP_START + MBED_APP_SIZE - 1;
+
+/* [RAM = 96kb + 32kb = 0x20000] */
 /* Vector table dynamic copy: Total: 98 vectors = 392 bytes (0x188) to be reserved in RAM */
 define symbol __NVIC_start__          = 0x10000000;
-define symbol __NVIC_end__            = 0x10000187;
-define symbol __region_SRAM2_start__  = 0x10000188; /* This adress is 8-byte aligned */
+define symbol __NVIC_end__            = 0x10000187; /* Aligned on 8 bytes (392 = 49 x 8) */
+define symbol __region_SRAM2_start__  = 0x10000188;
 define symbol __region_SRAM2_end__    = 0x10007FFF;
 define symbol __region_SRAM1_start__  = 0x20000000;
 define symbol __region_SRAM1_end__    = 0x20017FFF;
@@ -31,5 +34,5 @@ do not initialize  { section .noinit };
 place at address mem:__intvec_start__ { readonly section .intvec };
 
 place in ROM_region   { readonly };
-place in SRAM1_region { readwrite, block STACKHEAP };
-place in SRAM2_region   {  };
+place in SRAM1_region   { readwrite, block STACKHEAP };
+place in SRAM2_region { };