Reduce RAM_D1 to 128K (some H7 MCUs have reduced size of flash)

Author: Igor-Misic

Linker/STM32H7xx.ld

@@ -53,7 +53,7 @@
 ENTRY(Reset_Handler)
 
 /* Highest address of the user mode stack */
-_estack = 0x20020000;    /* end of RAM */
+_estack = ORIGIN(DTCMRAM) + LENGTH(DTCMRAM);    /* 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 */
@@ -62,7 +62,7 @@ _Min_Stack_Size = 0x400; /* required amount of stack */
 MEMORY
 {
 DTCMRAM (xrw)    : ORIGIN = 0x20000000, LENGTH = 128K
-RAM_D1 (xrw)     : ORIGIN = 0x24000000, LENGTH = 512K
+RAM_D1 (xrw)     : ORIGIN = 0x24000000, LENGTH = 128K
 RAM_D2 (xrw)     : ORIGIN = 0x30000000, LENGTH = 288K
 RAM_D3 (xrw)     : ORIGIN = 0x38000000, LENGTH = 64K
 ITCMRAM (xrw)    : ORIGIN = 0x00000000, LENGTH = 64K