diff --git a/boards/st/stm32f746g_disco/board.cmake b/boards/st/stm32f746g_disco/board.cmake
index 038a5d7e806d..968e8cfa890d 100644
--- a/boards/st/stm32f746g_disco/board.cmake
+++ b/boards/st/stm32f746g_disco/board.cmake
@@ -2,6 +2,8 @@
 
 # keep first
 board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
+board_runner_args(stm32cubeprogrammer "--extload=N25Q128A_STM32F746G-DISCO.stldr")
+
 board_runner_args(jlink "--device=STM32F746NG" "--speed=4000")
 
 # keep first
diff --git a/boards/st/stm32f746g_disco/stm32f746g_disco.dts b/boards/st/stm32f746g_disco/stm32f746g_disco.dts
index e224d24beaa0..3c1ec8b1eed1 100644
--- a/boards/st/stm32f746g_disco/stm32f746g_disco.dts
+++ b/boards/st/stm32f746g_disco/stm32f746g_disco.dts
@@ -57,6 +57,15 @@
 		zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM) )>;
 	};
 
+	/* Declare attributes for the External flash Mem to allow code execution there */
+	ext_memory: memory@90000000 {
+		compatible = "zephyr,memory-region";
+		reg = <0x90000000 DT_SIZE_M(16)>; /* max addressable area */
+		zephyr,memory-region = "EXTMEM";
+		/* The ATTR_MPU_EXTMEM attribut causing a MPU FAULT */
+		zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
+	};
+
 	aliases {
 		led0 = &green_led_1;
 		sw0 = &user_button;
diff --git a/samples/application_development/code_relocation_nocopy/boards/stm32f746g_disco.conf b/samples/application_development/code_relocation_nocopy/boards/stm32f746g_disco.conf
new file mode 100644
index 000000000000..eac2504a7850
--- /dev/null
+++ b/samples/application_development/code_relocation_nocopy/boards/stm32f746g_disco.conf
@@ -0,0 +1,2 @@
+CONFIG_FLASH=y
+CONFIG_STM32_MEMMAP=y