Memory regions described in the ld file

firmware/Core/Src/main.c

@@ -83,6 +83,8 @@ TIM_HandleTypeDef htim17;
 
 /* USER CODE BEGIN PV */
 
+//volatile const uint8_t config_flash[1024 * 2] __attribute__((__section__(".conf_data")));
+
 union FLASH_conf {
 	  conf_t config;
 	  struct FLASH_sector sector;

firmware/STM32G031G8UX_FLASH.ld

@@ -45,7 +45,8 @@ _Min_Stack_Size = 0x400 ; /* required amount of stack */
 MEMORY
 {
   RAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = 8K
-  FLASH    (rx)    : ORIGIN = 0x8000000,   LENGTH = 62K
+  FLASH   (rx)    : ORIGIN = 0x8000000,    LENGTH = 62K
+  CONF   (rwx)    : ORIGIN = 0x800F800,    LENGTH = 2K
 }
 
 /* Sections */
@@ -173,6 +174,13 @@ SECTIONS
     . = ALIGN(8);
   } >RAM
 
+  .conf_data :
+  {
+    . = ALIGN(4);
+    *(.conf_data)
+    . = ALIGN(4);
+  } > CONF
+
   /* Remove information from the compiler libraries */
   /DISCARD/ :
   {