diff --git a/.gitignore b/.gitignore
index 5cc6b2e..5079514 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@ src/.dep
 src/config.mk
 src/config.h
 src/gnuk.ld
+src/stdaln-sys.ld
 src/board.h
 src/build/*
 src/*.inc
diff --git a/src/Makefile b/src/Makefile
index b864e60..37bcd56 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -53,6 +53,10 @@ ifeq ($(CHIP),stm32f103)
 CSRC += mcu-stm32f103.c 
 endif
 
+ifneq ($(USE_DFU),)
+OBJS_ADD += build/stdaln-sys-bin.o
+endif
+
 ###################################
 CC   = $(CROSS)gcc
 LD   = $(CROSS)gcc
@@ -72,8 +76,18 @@ sys.c: board.h
 
 build/bignum.o: OPT = -O3 -g
 
+build/stdaln-sys.elf: build/sys-$(CHIP).o stdaln-sys.ld
+	@echo
+	$(LD) -v $< $(MCFLAGS) -nostartfiles -Tstdaln-sys.ld -Wl,--no-warn-mismatch,--gc-sections $(LLIBDIR) -o $@
+
+build/stdaln-sys-bin.o: build/stdaln-sys.elf
+	@echo
+	$(OBJCOPY) -O binary -j .sys $< build/stdaln-sys.bin
+	$(OBJCOPY) -I binary -O default --rename-section .data=.rodata \
+		build/stdaln-sys.bin $@
+
 distclean: clean
-	-rm -f gnuk.ld config.h board.h config.mk \
+	-rm -f gnuk.ld stdaln-sys.ld config.h board.h config.mk \
 	       usb-strings.c.inc usb-vid-pid-ver.c.inc
 
 ifeq ($(EMULATION),)
diff --git a/src/configure b/src/configure
index cedfdfc..d09cde6 100755
--- a/src/configure
+++ b/src/configure
@@ -506,6 +506,8 @@ else
       -e "s/@FLASH_PAGE_SIZE@/$FLASH_PAGE_SIZE/" \
 	< gnuk.ld.in > gnuk.ld
 fi
+sed -e "s/@ORIGIN_REAL@/$ORIGIN_REAL/" -e "s/@MEMORY_SIZE@/$MEMORY_SIZE/" \
+	< stdaln-sys.ld.in > stdaln-sys.ld
 sed -e "s/@DEBUG_DEFINE@/$DEBUG_DEFINE/" \
     -e "s/@DFU_DEFINE@/$DFU_DEFINE/" \
     -e "s/@ORIGIN_DEFINE@/$ORIGIN_DEFINE/" \
diff --git a/src/stdaln-sys.ld.in b/src/stdaln-sys.ld.in
new file mode 100644
index 0000000..1bc4652
--- /dev/null
+++ b/src/stdaln-sys.ld.in
@@ -0,0 +1,39 @@
+/*
+ * ST32F103 memory setup.
+ */
+MEMORY
+{
+    flash0 : org = @ORIGIN_REAL@, len = 4k
+    ram : org = 0x20000000, len = @MEMORY_SIZE@k
+}
+
+__ram_start__           = ORIGIN(ram);
+__ram_size__            = LENGTH(ram);
+__ram_end__             = __ram_start__ + __ram_size__;
+
+SECTIONS
+{
+    . = 0;
+
+    .sys : ALIGN(4) SUBALIGN(4)
+    {
+	_sys = .;
+	KEEP(*(.vectors))
+	. = ALIGN(16);
+	KEEP(*(.sys.version))
+	KEEP(*(.sys.board_id))
+	KEEP(*(.sys.board_name))
+	build/sys-*.o(.text)
+	build/sys-*.o(.text.*)
+	build/sys-*.o(.rodata)
+	build/sys-*.o(.rodata.*)
+	. = ALIGN(1024);
+    } > flash0
+
+    .aesft : ALIGN(4) SUBALIGN(4)
+    {
+	*(.sys.0)
+	*(.sys.1)
+	*(.sys.2)
+    } > flash0
+}