[Silicon Labs] Add bootloader support

* Make memory sections configurable in linker files * Dynamically determine vector location in flash for NVIC relocation * Advertise bootloader support in targets.json
krissl94 · Jun 6, 2017 · 5d906a7 · 5d906a7
1 parent 8d6bc1d
commit 5d906a7
Show file tree

Hide file tree

Showing 32 changed files with 302 additions and 71 deletions.
diff --git a/...icon_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_ARM_MICRO/efm32gg.sct b/...icon_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_ARM_MICRO/efm32gg.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00100000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00100000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00100000
+#endif
+
+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/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_ARM_STD/efm32gg.sct b/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_ARM_STD/efm32gg.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00100000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00100000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00100000
+#endif
+
+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/...Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_GCC_ARM/efm32gg.ld b/...Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_GCC_ARM/efm32gg.ld
@@ -19,9 +19,17 @@ STACK_SIZE = 0x400;
  * heap and the page heap in uVisor applications. */
 HEAP_SIZE = 0x6000;
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 1048576
+#endif
+
 MEMORY
 {
-  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 1048576
+  FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   RAM (rwx)  : ORIGIN = 0x20000000, LENGTH = 131072
 }
 /* MBED: mbed needs to be able to dynamically set the interrupt vector table.

diff --git a/...on_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_IAR/efm32gg990f1024.icf b/...on_Labs/TARGET_EFM32/TARGET_EFM32GG/device/TARGET_1024K/TOOLCHAIN_IAR/efm32gg990f1024.icf
@@ -1,11 +1,15 @@
 /*###ICF### Section handled by ICF editor, don't touch! ****/
 /*-Editor annotation file-*/
 /* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
+
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x00000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x00100000; }
+
 /*-Specials-*/
-define symbol __ICFEDIT_intvec_start__ = 0x00000000;
+define symbol __ICFEDIT_intvec_start__ = MBED_APP_START;
 /*-Memory Regions-*/
-define symbol __ICFEDIT_region_ROM_start__   = 0x00000000;
-define symbol __ICFEDIT_region_ROM_end__     = 0x000FFFFF;
+define symbol __ICFEDIT_region_ROM_start__   = MBED_APP_START;
+define symbol __ICFEDIT_region_ROM_end__     = MBED_APP_START + MBED_APP_SIZE - 1;
 define symbol __NVIC_start__                 = 0x20000000;
 define symbol __NVIC_end__                   = 0x200000DB;
 define symbol __ICFEDIT_region_RAM_start__   = 0x200000DC;

diff --git a/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32HG/device/TARGET_64K/TOOLCHAIN_ARM_MICRO/efm32hg.sct b/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32HG/device/TARGET_64K/TOOLCHAIN_ARM_MICRO/efm32hg.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00010000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00010000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00010000
+#endif
+
+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/...T_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG/device/TARGET_64K/TOOLCHAIN_GCC_ARM/efm32hg.ld b/...T_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG/device/TARGET_64K/TOOLCHAIN_GCC_ARM/efm32hg.ld
@@ -9,9 +9,17 @@
 /* Version 4.2.0 */
 /*                                                                  */
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 65536
+#endif
+
 MEMORY
 {
-  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 65536
+  FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   RAM (rwx)  : ORIGIN = 0x20000000, LENGTH = 8192
 }
 

diff --git a/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32HG/device/TARGET_64K/TOOLCHAIN_IAR/efm32hg322f64.icf b/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32HG/device/TARGET_64K/TOOLCHAIN_IAR/efm32hg322f64.icf
@@ -1,11 +1,15 @@
 /*###ICF### Section handled by ICF editor, don't touch! ****/
 /*-Editor annotation file-*/
 /* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
+
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x00000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x00010000; }
+
 /*-Specials-*/
-define symbol __ICFEDIT_intvec_start__ = 0x00000000;
+define symbol __ICFEDIT_intvec_start__ = MBED_APP_START;
 /*-Memory Regions-*/
-define symbol __ICFEDIT_region_ROM_start__   = 0x00000000;
-define symbol __ICFEDIT_region_ROM_end__     = 0x0000FFFF;
+define symbol __ICFEDIT_region_ROM_start__   = MBED_APP_START;
+define symbol __ICFEDIT_region_ROM_end__     = MBED_APP_START + MBED_APP_SIZE - 1;
 define symbol __NVIC_start__                 = 0x20000000;
 define symbol __NVIC_end__                   = 0x20000093;
 define symbol __ICFEDIT_region_RAM_start__   = 0x20000094;

diff --git a/...licon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_ARM_MICRO/efm32lg.sct b/...licon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_ARM_MICRO/efm32lg.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00040000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00040000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00040000
+#endif
+
+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/...Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_ARM_STD/efm32lg.sct b/...Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_ARM_STD/efm32lg.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00040000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00040000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00040000
+#endif
+
+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/..._Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_GCC_ARM/efm32lg.ld b/..._Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_GCC_ARM/efm32lg.ld
@@ -9,9 +9,17 @@
 /* Version 4.2.0 */
 /*                                                                  */
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 262144
+#endif
+
 MEMORY
 {
-  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 262144
+  FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   RAM (rwx)  : ORIGIN = 0x20000000, LENGTH = 32768
 }
 /* MBED: mbed needs to be able to dynamically set the interrupt vector table.

diff --git a/...icon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_IAR/efm32lg990f256.icf b/...icon_Labs/TARGET_EFM32/TARGET_EFM32LG/device/TARGET_256K/TOOLCHAIN_IAR/efm32lg990f256.icf
@@ -1,11 +1,15 @@
 /*###ICF### Section handled by ICF editor, don't touch! ****/
 /*-Editor annotation file-*/
 /* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
+
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x00000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x00040000; }
+
 /*-Specials-*/
-define symbol __ICFEDIT_intvec_start__ = 0x00000000;
+define symbol __ICFEDIT_intvec_start__ = MBED_APP_START;
 /*-Memory Regions-*/
-define symbol __ICFEDIT_region_ROM_start__   = 0x00000000;
-define symbol __ICFEDIT_region_ROM_end__     = 0x0003FFFF;
+define symbol __ICFEDIT_region_ROM_start__   = MBED_APP_START;
+define symbol __ICFEDIT_region_ROM_end__     = MBED_APP_START + MBED_APP_SIZE - 1;
 define symbol __NVIC_start__                 = 0x20000000;
 define symbol __NVIC_end__                   = 0x200000DF;
 define symbol __ICFEDIT_region_RAM_start__   = 0x200000E0;

diff --git a/...con_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_ARM_MICRO/efm32pg1b.sct b/...con_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_ARM_MICRO/efm32pg1b.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00040000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00040000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00040000
+#endif
+
+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/...licon_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_ARM_STD/efm32pg1b.sct b/...licon_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_ARM_STD/efm32pg1b.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00040000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00040000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00040000
+#endif
+
+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/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_GCC_ARM/efm32pg1b.ld b/...ilicon_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_GCC_ARM/efm32pg1b.ld
@@ -9,9 +9,17 @@
 /* Version 4.2.0 */
 /*                                                                  */
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 262144
+#endif
+
 MEMORY
 {
-  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 262144
+  FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   RAM (rwx)  : ORIGIN = 0x20000000, LENGTH = 32768
 }
 

diff --git a/...on_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_IAR/efm32pg1b200f256.icf b/...on_Labs/TARGET_EFM32/TARGET_EFM32PG/device/TARGET_256K/TOOLCHAIN_IAR/efm32pg1b200f256.icf
@@ -1,11 +1,15 @@
 /*###ICF### Section handled by ICF editor, don't touch! ****/
 /*-Editor annotation file-*/
 /* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
+
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x00000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x00040000; }
+
 /*-Specials-*/
-define symbol __ICFEDIT_intvec_start__ = 0x00000000;
+define symbol __ICFEDIT_intvec_start__ = MBED_APP_START;
 /*-Memory Regions-*/
-define symbol __ICFEDIT_region_ROM_start__   = 0x00000000;
-define symbol __ICFEDIT_region_ROM_end__     = 0x0003FFFF;
+define symbol __ICFEDIT_region_ROM_start__   = MBED_APP_START;
+define symbol __ICFEDIT_region_ROM_end__     = MBED_APP_START + MBED_APP_SIZE - 1;
 define symbol __NVIC_start__                 = 0x20000000;
 define symbol __NVIC_end__                   = 0x200000C7;
 define symbol __ICFEDIT_region_RAM_start__   = 0x200000C8;

diff --git a/...TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG12/device/TOOLCHAIN_ARM_STD/efr32pg12b.sct b/...TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG12/device/TOOLCHAIN_ARM_STD/efr32pg12b.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00100000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00100000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00100000
+#endif
+
+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/.../TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG12/device/TOOLCHAIN_GCC_ARM/efm32pg12b.ld b/.../TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG12/device/TOOLCHAIN_GCC_ARM/efm32pg12b.ld
@@ -9,9 +9,17 @@
 /* Version 5.1.2 */
 /*                                                                     */
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 1048576
+#endif
+
 MEMORY
 {
-  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 1048576
+  FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   RAM (rwx)  : ORIGIN = 0x20000000, LENGTH = 262144
 }
 

diff --git a/...licon_Labs/TARGET_EFM32/TARGET_EFM32PG12/device/TOOLCHAIN_IAR/EFM32PG12B500F1024GL125.icf b/...licon_Labs/TARGET_EFM32/TARGET_EFM32PG12/device/TOOLCHAIN_IAR/EFM32PG12B500F1024GL125.icf
@@ -3,12 +3,14 @@
 /* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
 /* Version 5.1.1 */
 
-/*-Specials-*/
-define symbol __ICFEDIT_intvec_start__ = 0x00000000;
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x00000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x00100000; }
 
+/*-Specials-*/
+define symbol __ICFEDIT_intvec_start__ = MBED_APP_START;
 /*-Memory Regions-*/
-define symbol __ICFEDIT_region_ROM_start__   = 0x00000000;
-define symbol __ICFEDIT_region_ROM_end__     = (0x00000000+0x00100000-1);
+define symbol __ICFEDIT_region_ROM_start__   = MBED_APP_START;
+define symbol __ICFEDIT_region_ROM_end__     = MBED_APP_START + MBED_APP_SIZE - 1;
 define symbol __NVIC_start__                 = 0x20000000;
 define symbol __NVIC_end__                   = 0x2000010B;
 define symbol __ICFEDIT_region_RAM_start__   = 0x2000010C;

diff --git a/...licon_Labs/TARGET_EFM32/TARGET_EFM32WG/device/TARGET_256K/TOOLCHAIN_ARM_MICRO/efm32wg.sct b/...licon_Labs/TARGET_EFM32/TARGET_EFM32WG/device/TARGET_256K/TOOLCHAIN_ARM_MICRO/efm32wg.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00040000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00040000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00040000
+#endif
+
+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/...Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG/device/TARGET_256K/TOOLCHAIN_ARM_STD/efm32wg.sct b/...Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG/device/TARGET_256K/TOOLCHAIN_ARM_STD/efm32wg.sct
@@ -1,9 +1,18 @@
+#! armcc -E
 ; *************************************************************
 ; *** Scatter-Loading Description File generated by uVision ***
 ; *************************************************************
 
-LR_IROM1 0x00000000 0x00040000  {    ; load region size_region
-  ER_IROM1 0x00000000 0x00040000  {  ; load address = execution address
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x00000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x00040000
+#endif
+
+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)