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diff --git a/boards/at91sam7x-ek/benchmark/kernel_footprint_coop/main.c b/boards/at91sam7x-ek/benchmark/kernel_footprint_coop/main.c
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+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \author Luca Ottaviano <lottaviano@develer.com>
+ * \author Andrea Righi <arighi@develer.com>
+ * \author Daniele Basile <asterix@develer.com>
+ *
+ * \brief Kernel Cooperative footprint benchmark.
+ * This simple application show you the kernel footprint for a typical use. Genereally
+ * in the application that we want use the kernel, we use a process, send ad recv message
+ * from process or using signals.
+ * Compile this application and see the size of the bin file generated, typically, whitout
+ * any compile optimization, the size shold be about 4Kbyte (whit arm-2009q3 toolchain), if
+ * we optimize the compilation for size using the -Os gcc flag the image size result about
+ * 2Kbyte.
+ *
+ * Note: by default this project compile without any compile optimization, so if we
+ * want to try to change it go to kernel_footprint_coop_user.mk, and add the flag
+ * in the section kernel_footprint_coop_USER_CPPFLAGS.
+ * To see the effect optimization flag you shoul clean the project and rebuild it.
+ */
+
+#include <cpu/irq.h>
+#include <kern/proc.h>
+#include <kern/signal.h>
+#include <kern/msg.h>
+
+MsgPort in_port;
+
+static void init(void)
+{
+    IRQ_ENABLE;
+    proc_init();
+}
+
+static PROC_DEFINE_STACK(proc1_stack, KERN_MINSTACKSIZE);
+
+static void proc1_main(void)
+{
+
+}
+
+int main(void)
+{
+    init();
+    // generate code for process
+    struct Process *p = proc_new(proc1_main, 0, sizeof(proc1_stack), proc1_stack);
+    proc_setPri(p, 5);
+    proc_yield();
+    // generate code for msg
+    Msg msg;
+    msg_initPort(&in_port, event_createSignal(p, SIG_USER1));
+    msg_put(&in_port, &msg);
+    msg_peek(&in_port);
+    Msg *msg_re = msg_get(&in_port);
+    msg_reply(msg_re);
+    // generate code for signals
+    sig_send(p, SIG_USER0);
+    sig_wait(SIG_USER0);
+
+    return 0;
+}