Add bootloader support for NUCLEO_F411RE target

Author: Jammu Kekkonen

targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/TARGET_NUCLEO_F411RE/system_clock.c

@@ -32,13 +32,6 @@
 #include "stm32f4xx.h"
 #include "mbed_assert.h"
 
-/*!< Uncomment the following line if you need to relocate your vector Table in
-     Internal SRAM. */
-/* #define VECT_TAB_SRAM */
-#define VECT_TAB_OFFSET  0x00 /*!< Vector Table base offset field.
-                                   This value must be a multiple of 0x200. */
-
-
 // clock source is selected with CLOCK_SOURCE in json config
 #define USE_PLL_HSE_EXTC     0x8  // Use external clock (ST Link MCO)
 #define USE_PLL_HSE_XTAL     0x4  // Use external xtal (X3 on board - not provided by default)
@@ -88,14 +81,6 @@ void SystemInit(void)
 #if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
     SystemInit_ExtMemCtl();
 #endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
-
-    /* Configure the Vector Table location add offset address ------------------*/
-#ifdef VECT_TAB_SRAM
-    SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
-#else
-    SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
-#endif
-
 }
 
 

targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/device/TOOLCHAIN_ARM_STD/stm32f411re.sct

@@ -1,3 +1,4 @@
+#! armcc -E
 ; Scatter-Loading Description File
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Copyright (c) 2014, STMicroelectronics
@@ -27,10 +28,18 @@
 ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
+#if !defined(MBED_APP_START)
+  #define MBED_APP_START 0x08000000
+#endif
+
+#if !defined(MBED_APP_SIZE)
+  #define MBED_APP_SIZE 0x80000
+#endif
+
 ; STM32F411RE: 512 KB FLASH (0x80000) + 128 KB SRAM (0x20000)
-LR_IROM1 0x08000000 0x80000  {    ; load region size_region
+LR_IROM1 MBED_APP_START MBED_APP_SIZE  {    ; load region size_region
 
-  ER_IROM1 0x08000000 0x80000  {  ; load address = execution address
+  ER_IROM1 MBED_APP_START MBED_APP_SIZE  {  ; load address = execution address
    *.o (RESET, +First)
    *(InRoot$$Sections)
    .ANY (+RO)

targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/device/TOOLCHAIN_GCC_ARM/STM32F411XE.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 512K
+#endif
+
 /* Linker script to configure memory regions. */
 MEMORY
-{ 
-  FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K
+{
+  FLASH (rx)   : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   RAM (rwx)  : ORIGIN = 0x20000198, LENGTH = 128k - 0x198
 }
 

targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F411xE/device/TOOLCHAIN_IAR/stm32f411xe.icf

@@ -1,7 +1,10 @@
+if (!isdefinedsymbol(MBED_APP_START)) { define symbol MBED_APP_START = 0x08000000; }
+if (!isdefinedsymbol(MBED_APP_SIZE)) { define symbol MBED_APP_SIZE = 0x80000; }
+
 /* [ROM = 512kb = 0x80000] */
-define symbol __intvec_start__     = 0x08000000;
-define symbol __region_ROM_start__ = 0x08000000;
-define symbol __region_ROM_end__   = 0x0807FFFF;
+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 = 128kb = 0x20000] Vector table dynamic copy: 102 vectors = 408 bytes (0x198) to be reserved in RAM */
 define symbol __NVIC_start__          = 0x20000000;

targets/targets.json

@@ -1099,7 +1099,8 @@
         "macros_add": ["USB_STM_HAL", "USBHOST_OTHER"],
         "device_has_add": ["LOWPOWERTIMER", "SERIAL_ASYNCH", "SERIAL_FC", "FLASH"],
         "release_versions": ["2", "5"],
-        "device_name": "STM32F411RE"
+        "device_name": "STM32F411RE",
+        "bootloader_supported": true
     },
     "NUCLEO_F412ZG": {
         "inherits": ["FAMILY_STM32"],