--- /dev/null
+/**
+ * \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 2008 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \version $Id$
+ *
+ * \author Andrea Grandi <andrea@develer.com>
+ *
+ * \brief SIPO Module
+ *
+ * The SIPO module trasform a serial input in
+ * a parallel output. Please check hw_sipo.h
+ * file to customize hardware relative parameters.
+ *
+ */
+
+#include <drv/ser.h>
+#include "sipo.h"
+
+Serial *sipo_port;
+
+/** Initialize the SIPO port */
+void sipo_init(void)
+{
+ CLOCK_LOW;
+ SET_SOUT_LOW;
+ LOAD_LOW;
+ SET_SCK_OUT;
+ SET_SOUT_OUT;
+ LOAD_INIT;
+ sipo_putchar(0x0);
+ OE_OUT;
+ OE_LOW;
+}
+
+/** Write a char in the SIPO port and manage the LOAD pin */
+void sipo_putchar(uint8_t c)
+{
+ for(int i = 0; i <= 7; i++)
+ {
+ if((c & BV(i)) == 0)
+ SET_SOUT_LOW;
+ else
+ SET_SOUT_HIGH;
+
+ CLOCK_PULSE;
+ }
+
+ LOAD_HIGH;
+ LOAD_LOW;
+}
+