Added Nucleo F446RE support

README.md

@@ -58,6 +58,9 @@ For advanced user, you can use the repository: see the [Using git repository](ht
     * BluePill F103C8 (on going)
     * MapleMini F103CB (on going)
 
+  * STM32F4
+    * [Nucleo F446RE](http://www.st.com/en/evaluation-tools/nucleo-f446re.html)
+
 ## Troubleshooting
 
 If you have any issue, you could [file an issue on Github](https://github.com/stm32duino/Arduino_Core_STM32/issues/new).

boards.txt

@@ -171,6 +171,19 @@ Nucleo_64.menu.pnum.NUCLEO_F411RE.build.product_line=STM32F411xE
 Nucleo_64.menu.pnum.NUCLEO_F411RE.build.variant=NUCLEO_F411RE
 Nucleo_64.menu.pnum.NUCLEO_F411RE.build.cmsis_lib_gcc=arm_cortexM4l_math
 
+# NUCLEO_F446RE board
+Nucleo_64.menu.pnum.NUCLEO_F446RE=Nucleo F446RE
+Nucleo_64.menu.pnum.NUCLEO_F446RE.node=NODE_F446RE
+Nucleo_64.menu.pnum.NUCLEO_F446RE.upload.maximum_size=524288
+Nucleo_64.menu.pnum.NUCLEO_F446RE.upload.maximum_data_size=131072
+Nucleo_64.menu.pnum.NUCLEO_F446RE.build.mcu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+Nucleo_64.menu.pnum.NUCLEO_F446RE.build.f_cpu=180000000L
+Nucleo_64.menu.pnum.NUCLEO_F446RE.build.board=NUCLEO_F446RE
+Nucleo_64.menu.pnum.NUCLEO_F446RE.build.series=STM32F4xx
+Nucleo_64.menu.pnum.NUCLEO_F446RE.build.product_line=STM32F446xx
+Nucleo_64.menu.pnum.NUCLEO_F446RE.build.variant=NUCLEO_F446RE
+Nucleo_64.menu.pnum.NUCLEO_F446RE.build.cmsis_lib_gcc=arm_cortexM4l_math
+
 # NUCLEO_L053R8 board
 # Support: Serial1 (USART1 on PA10, PA9)
 Nucleo_64.menu.pnum.NUCLEO_L053R8=Nucleo L053R8

variants/NUCLEO_F446RE/ldscript.ld

@@ -0,0 +1,169 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**  Abstract    : Linker script for STM32F446RETx Device with
+**                512KByte FLASH, 128KByte RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**
+**  Distribution: The file is distributed as is, without any warranty
+**                of any kind.
+**
+**  (c)Copyright Ac6.
+**  You may use this file as-is or modify it according to the needs of your
+**  project. Distribution of this file (unmodified or modified) is not
+**  permitted. Ac6 permit registered System Workbench for MCU users the
+**  rights to distribute the assembled, compiled & linked contents of this
+**  file as part of an application binary file, provided that it is built
+**  using the System Workbench for MCU toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20020000;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 128K
+FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 512K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text ALIGN(4):
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+