update ldscript.ld

Author: valnim

variants/STM32F3xx/F334R8T/ldscript.ld

@@ -1,41 +1,51 @@
-/**
- ******************************************************************************
- * @file      LinkerScript.ld
- * @author    Auto-generated by STM32CubeIDE
- * @brief     Linker script for STM32F334R8Tx Device from STM32F3 series
- *                      64Kbytes FLASH
- *                      16Kbytes RAM
- *
- *            Set heap size, stack size and stack location according
- *            to application requirements.
- *
- *            Set memory bank area and size if external memory is used
- ******************************************************************************
- * @attention
- *
- * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
- * All rights reserved.</center></h2>
- *
- * This software component is licensed by ST under BSD 3-Clause license,
- * the "License"; You may not use this file except in compliance with the
- * License. You may obtain a copy of the License at:
- *                        opensource.org/licenses/BSD-3-Clause
- *
- ******************************************************************************
- */
+/*
+******************************************************************************
+**
+** @file        : LinkerScript.ld
+**
+** @author      : Auto-generated by STM32CubeIDE
+**
+**  Abstract    : Linker script for NUCLEO-F334R8 Board embedding STM32F334R8Tx Device from stm32f3 series
+**                      64Kbytes FLASH
+**                      4Kbytes CCMRAM
+**                      12Kbytes 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
+**
+** Copyright (c) 2022 STMicroelectronics.
+** All rights reserved.
+**
+** This software is licensed under terms that can be found in the LICENSE file
+** in the root directory of this software component.
+** If no LICENSE file comes with this software, it is provided AS-IS.
+**
+******************************************************************************
+*/
 
 /* Entry Point */
 ENTRY(Reset_Handler)
 
 /* Highest address of the user mode stack */
-_estack = ORIGIN(RAM) + LENGTH(RAM);	/* end of "RAM" Ram type memory */
+_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */
 
-_Min_Heap_Size = 0x200;	/* required amount of heap  */
-_Min_Stack_Size = 0x400;	/* required amount of stack */
+_Min_Heap_Size = 0x200; /* required amount of heap */
+_Min_Stack_Size = 0x400; /* required amount of stack */
 
 /* Memories definition */
 MEMORY
 {
+  CCMRAM    (xrw)    : ORIGIN = 0x10000000,   LENGTH = 4K
   RAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = LD_MAX_DATA_SIZE
   FLASH    (rx)    : ORIGIN = 0x8000000 + LD_FLASH_OFFSET, LENGTH = LD_MAX_SIZE - LD_FLASH_OFFSET
 }
@@ -138,6 +148,25 @@ SECTIONS
 
   } >RAM AT> FLASH
 
+  _siccmram = LOADADDR(.ccmram);
+
+  /* CCM-RAM section
+  *
+  * IMPORTANT NOTE!
+  * If initialized variables will be placed in this section,
+  * the startup code needs to be modified to copy the init-values.
+  */
+  .ccmram :
+  {
+    . = ALIGN(4);
+    _sccmram = .;       /* create a global symbol at ccmram start */
+    *(.ccmram)
+    *(.ccmram*)
+
+    . = ALIGN(4);
+    _eccmram = .;       /* create a global symbol at ccmram end */
+  } >CCMRAM AT> FLASH
+
   /* Uninitialized data section into "RAM" Ram type memory */
   . = ALIGN(4);
   .bss :