diff --git a/demos/ARM7-AT91SAM7X-GCC/Makefile b/demos/ARM7-AT91SAM7X-GCC/Makefile
index 87f1db472..e4fd03fce 100644
--- a/demos/ARM7-AT91SAM7X-GCC/Makefile
+++ b/demos/ARM7-AT91SAM7X-GCC/Makefile
@@ -62,7 +62,7 @@ UDEFS =
 UADEFS =
 
 # List ARM-mode C source files here
-ASRC = \
+ASRC = ../../ports/ARM7-LPC214x/GCC/chcore.c \
        ../../src/chinit.c ../../src/chdebug.c ../../src/chlists.c ../../src/chdelta.c \
        ../../src/chschd.c ../../src/chthreads.c ../../src/chsem.c ../../src/chmtx.c \
        ../../src/chevents.c ../../src/chmsg.c ../../src/chsleep.c ../../src/chqueues.c \
diff --git a/demos/ARM7-AT91SAM7X-GCC/ch.ld b/demos/ARM7-AT91SAM7X-GCC/ch.ld
index 10ce4b2f5..0cbe11eca 100644
--- a/demos/ARM7-AT91SAM7X-GCC/ch.ld
+++ b/demos/ARM7-AT91SAM7X-GCC/ch.ld
@@ -31,7 +31,7 @@ __stacks_total_size__	= __und_stack_size__ + __abt_stack_size__ + __fiq_stack_si
 MEMORY
 {
 	flash : org = 0x100000, len = 256k
-	ram : org = 0x200000, len = 64k
+	ram : org = 0x200020, len = 64k - 0x20
 }
 
 __ram_start__		= ORIGIN(ram);