[Nucleo L452RE] Add support

boards.txt

@@ -269,6 +269,7 @@ Nucleo_64.menu.pnum.NUCLEO_L073RZ.build.product_line=STM32L073xx
 Nucleo_64.menu.pnum.NUCLEO_L073RZ.build.variant=NUCLEO_L073RZ
 Nucleo_64.menu.pnum.NUCLEO_L073RZ.build.cmsis_lib_gcc=arm_cortexM0l_math
 Nucleo_64.menu.pnum.NUCLEO_L073RZ.build.extra_flags=-D{build.product_line} {build.enable_usb} {build.xSerial} -D__CORTEX_SC=0
+
 # NUCLEO_L152RE board
 # Support: Serial1 (USART1 on PA10, PA9) and Serial2 (UART4 on PC11, PC10)
 Nucleo_64.menu.pnum.NUCLEO_L152RE=Nucleo L152RE
@@ -282,6 +283,18 @@ Nucleo_64.menu.pnum.NUCLEO_L152RE.build.product_line=STM32L152xE
 Nucleo_64.menu.pnum.NUCLEO_L152RE.build.variant=NUCLEO_L152RE
 Nucleo_64.menu.pnum.NUCLEO_L152RE.build.cmsis_lib_gcc=arm_cortexM3l_math
 
+# NUCLEO_L452RE board
+Nucleo_64.menu.pnum.NUCLEO_L452RE=Nucleo L452RE
+Nucleo_64.menu.pnum.NUCLEO_L452RE.node=NODE_L452RE
+Nucleo_64.menu.pnum.NUCLEO_L452RE.upload.maximum_size=524288
+Nucleo_64.menu.pnum.NUCLEO_L452RE.upload.maximum_data_size=163840
+Nucleo_64.menu.pnum.NUCLEO_L452RE.build.mcu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+Nucleo_64.menu.pnum.NUCLEO_L452RE.build.board=NUCLEO_L452RE
+Nucleo_64.menu.pnum.NUCLEO_L452RE.build.series=STM32L4xx
+Nucleo_64.menu.pnum.NUCLEO_L452RE.build.product_line=STM32L452xx
+Nucleo_64.menu.pnum.NUCLEO_L452RE.build.variant=NUCLEO_L452RE
+Nucleo_64.menu.pnum.NUCLEO_L452RE.build.cmsis_lib_gcc=arm_cortexM4l_math
+
 # NUCLEO_L476RG board
 # Support: Serial1 (USART1 on PA10, PA9)
 Nucleo_64.menu.pnum.NUCLEO_L476RG=Nucleo L476RG

variants/NUCLEO_L452RE/PinNamesVar.h

@@ -0,0 +1,32 @@
+  /* SYS_WKUP */
+#ifdef PWR_WAKEUP_PIN1
+  SYS_WKUP1 = PA_0,
+#endif
+#ifdef PWR_WAKEUP_PIN2
+  SYS_WKUP2 = PC_13,
+#endif
+#ifdef PWR_WAKEUP_PIN3
+  SYS_WKUP3 = PE_6, /* manually updated */
+#endif
+#ifdef PWR_WAKEUP_PIN4
+  SYS_WKUP4 = PA_2,
+#endif
+#ifdef PWR_WAKEUP_PIN5
+  SYS_WKUP5 = PC_5, /* manually updated */
+#endif
+#ifdef PWR_WAKEUP_PIN6
+  SYS_WKUP6 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN7
+  SYS_WKUP7 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN8
+  SYS_WKUP8 = NC,
+#endif
+  /* USB */
+#ifdef USBCON
+  USB_DM = PA_11,
+  USB_DP = PA_12,
+  USB_NOE = PA_13,
+/* USB_NOE = PC_9, */
+#endif

variants/NUCLEO_L452RE/ldscript.ld

@@ -0,0 +1,187 @@
+/*
+*****************************************************************************
+**
+
+**  File        : ldscript.ld
+**
+**  Abstract    : Linker script for STM32L452RE Device with
+**                512KByte FLASH, 160KByte 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.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; COPYRIGHT(c) 2014 Ac6</center></h2>
+**
+** Redistribution and use in source and binary forms, with or without modification,
+** are permitted provided that the following conditions are met:
+**   1. Redistributions of source code must retain the above copyright notice,
+**      this list of conditions and the following disclaimer.
+**   2. Redistributions in binary form must reproduce the above copyright notice,
+**      this list of conditions and the following disclaimer in the documentation
+**      and/or other materials provided with the distribution.
+**   3. Neither the name of Ac6 nor the names of its contributors
+**      may be used to endorse or promote products derived from this software
+**      without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20028000;    /* 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 = 160K
+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);
+    *(.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(4);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(4);
+  } >RAM
+
+
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+