Add bootloaderd support to NUCLEO_F446RE target

Author: pavels

targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F446xE/TARGET_NUCLEO_F446RE/system_clock.c

@@ -37,13 +37,6 @@
 #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)
@@ -97,13 +90,6 @@ void SystemInit(void)
     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_STM32F446xE/device/TOOLCHAIN_GCC_ARM/STM32F446XE.ld

@@ -1,15 +1,23 @@
+#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 = 0x200001C4, LENGTH = 128k - 0x1C4
 }
 
 /* Linker script to place sections and symbol values. Should be used together
  * with other linker script that defines memory regions FLASH and RAM.
  * It references following symbols, which must be defined in code:
  *   Reset_Handler : Entry of reset handler
- * 
+ *
  * It defines following symbols, which code can use without definition:
  *   __exidx_start
  *   __exidx_end

targets/targets.json

@@ -1138,7 +1138,8 @@
         "macros_add": ["USB_STM_HAL", "USBHOST_OTHER"],
         "device_has_add": ["ANALOGOUT", "CAN", "LOWPOWERTIMER", "SERIAL_ASYNCH", "SERIAL_FC", "FLASH"],
         "release_versions": ["2", "5"],
-        "device_name": "STM32F446RE"
+        "device_name": "STM32F446RE",
+        "bootloader_supported": true
     },
     "NUCLEO_F446ZE": {
         "inherits": ["FAMILY_STM32"],