application: use new bootloader method

application.c

@@ -273,8 +273,12 @@ static void command_reset(void* argument)
 static void command_bootloader(void* argument)
 {
 	(void)argument; // we won't use the argument
-	RCC_CSR |= RCC_CSR_RMVF; // clear reset flags
-	scb_reset_core(); // reset core (the bootloader will interpret it as starting into DFU)
+	// set DFU magic to specific RAM location
+	__dfu_magic[0] = 'D';
+	__dfu_magic[1] = 'F';
+	__dfu_magic[2] = 'U';
+	__dfu_magic[3] = '!';
+	scb_reset_system(); // reset system (core and peripherals)
 	while (true); // wait for the reset to happen
 }