Merge pull request #7798 from simosillankorva/NUCLEO_F303RE_bootloader_support

Add bootloader support for target NUCLEO_F303RE

Author: Cruz Monrreal

targets/TARGET_STM/TARGET_STM32F3/TARGET_STM32F303xE/TARGET_NUCLEO_F303RE/system_clock.c

@@ -33,12 +33,6 @@
 #include "stm32f3xx.h"
 #include "mbed_error.h"
 
-/*!< Uncomment the following line if you need to relocate your vector Table in
-     Internal SRAM. */
-/* #define VECT_TAB_SRAM */
-#define VECT_TAB_OFFSET  0x0 /*!< 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)
@@ -89,13 +83,6 @@ void SystemInit(void)
 
     /* Disable all interrupts */
     RCC->CIR = 0x00000000U;
-
-#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_STM32F3/TARGET_STM32F303xE/device/TOOLCHAIN_ARM_STD/stm32f303xe.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
+
 ; STM32F303RE: 512KB FLASH (0x80000) + 64KB SRAM (0x10000)
-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_STM32F3/TARGET_STM32F303xE/device/TOOLCHAIN_GCC_ARM/STM32F303XE.ld

@@ -1,7 +1,15 @@
 /* Linker script to configure memory regions. */
+#ifndef MBED_APP_START
+#define MBED_APP_START 0x08000000
+#endif
+
+#ifndef MBED_APP_SIZE
+#define MBED_APP_SIZE 512K
+#endif
+
 MEMORY
 { 
-  FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K
+  FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE
   CCM (rwx) : ORIGIN = 0x10000000, LENGTH = 16K
   RAM (rwx) : ORIGIN = 0x20000194, LENGTH = 64K - 0x194
 }

targets/TARGET_STM/TARGET_STM32F3/TARGET_STM32F303xE/device/TOOLCHAIN_IAR/stm32f303xe.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;
 
 define symbol __region_CCMRAM_start__ = 0x10000000;
 define symbol __region_CCMRAM_end__   = 0x10003FFF;
@@ -21,7 +24,7 @@ define region CCMRAM_region = mem:[from __region_CCMRAM_start__ to __region_CCMR
 /* Stack and Heap */
 /*Heap 1/4 of ram and stack 1/8*/
 define symbol __size_cstack__ = 0x2000;
-define symbol __size_heap__   = 0x4000;
+define symbol __size_heap__   = 0x5000;
 define block CSTACK    with alignment = 8, size = __size_cstack__   { };
 define block HEAP      with alignment = 8, size = __size_heap__     { };
 define block STACKHEAP with fixed order { block HEAP, block CSTACK };

targets/targets.json

@@ -1020,6 +1020,7 @@
         "detect_code": ["0745"],
         "device_has_add": ["ANALOGOUT", "CAN", "CRC", "SERIAL_ASYNCH", "SERIAL_FC", "FLASH"],
         "release_versions": ["2", "5"],
+        "bootloader_supported": true,
         "device_name": "STM32F303RE"
     },
     "NUCLEO_F303ZE": {