ngl this do be ai, I remove a few things it works

memory.x

@@ -1,12 +1,18 @@
 /* Memory layout of the STM32F469NI */
 MEMORY
 {
-    FLASH : ORIGIN = 0x08000000, LENGTH = 2048K
-    RAM : ORIGIN = 0x20000000, LENGTH = 256K
-    /* Core Coupled Memory (CCM) SRAM: 128KB at 0x10000000 */
-    CCMRAM : ORIGIN = 0x10000000, LENGTH = 128K
+    FLASH : ORIGIN = 0x08000000, LENGTH = 2M
+    RAM : ORIGIN = 0x20000000, LENGTH = 384K
+    CCMRAM : ORIGIN = 0x10000000, LENGTH = 64K
+		SDRAM : ORIGIN = 0xC0000000, LENGTH = 16M
+}
+
+SECTIONS
+{
+    .sdram (NOLOAD) :
+    {
+        *(.sdram .sdram.*);
+    } > SDRAM
 }
 
-/* This is where the call stack will be allocated. */
-/* The stack is of the full size of the RAM, minus the size of the .data section */
 _stack_start = ORIGIN(RAM) + LENGTH(RAM);