move heap out of FAST_RAM

Author: bkleiner

src/system/stm32f405/flash_layout.ld

@@ -174,12 +174,18 @@ SECTIONS
   } >RAM
 
   /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
+  ._user_heap :
   {
     . = ALIGN(4);
     PROVIDE ( end = . );
     PROVIDE ( _end = . );
     . = . + _Min_Heap_Size;
+    . = ALIGN(4);
+  } >RAM
+
+  ._user_stack :
+  {
+    . = ALIGN(4);
     . = . + _Min_Stack_Size;
     . = ALIGN(4);
   } >FAST_RAM

src/system/stm32g473/flash_layout.ld

@@ -5,7 +5,7 @@ ENTRY(Reset_Handler)
 _estack = ORIGIN(FAST_RAM) + LENGTH(FAST_RAM);     /* end of 128K RAM */
 
 /* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x2000;      /* required amount of heap  */
+_Min_Heap_Size = 0x4000;      /* required amount of heap  */
 _Min_Stack_Size = 0x4000; /* required amount of stack */
 
 /* Specify the memory areas */
@@ -141,12 +141,18 @@ SECTIONS
   } >RAM
 
   /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
+  ._user_heap :
   {
     . = ALIGN(4);
     PROVIDE ( end = . );
     PROVIDE ( _end = . );
     . = . + _Min_Heap_Size;
+    . = ALIGN(4);
+  } >RAM
+
+  ._user_stack :
+  {
+    . = ALIGN(4);
     . = . + _Min_Stack_Size;
     . = ALIGN(4);
   } >FAST_RAM

src/system/stm32h743/flash_layout.ld

@@ -11,7 +11,7 @@
 ENTRY(Reset_Handler)
 
 /* Highest address of the user mode stack */
-_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */
+_estack = ORIGIN(FAST_RAM) + LENGTH(FAST_RAM); /* end of "RAM" Ram type memory */
 
 _Min_Heap_Size = 0x4000; /* required amount of heap */
 _Min_Stack_Size = 0x4000; /* required amount of stack */
@@ -173,16 +173,22 @@ SECTIONS
   } >RAM
 
   /* User_heap_stack section, used to check that there is enough "RAM" Ram  type memory left */
-  ._user_heap_stack :
+  ._user_heap :
   {
     . = ALIGN(8);
     PROVIDE ( end = . );
     PROVIDE ( _end = . );
     . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
     . = ALIGN(8);
   } >RAM
 
+  ._user_stack :
+  {
+    . = ALIGN(8);
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >FAST_RAM
+
   /* Remove information from the compiler libraries */
   /DISCARD/ :
   {