4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2003, 2004, 2006, 2009 Develer S.r.l. (http://www.develer.com/)
30 * Copyright 2000 Bernie Innocenti <bernie@codewiz.org>
34 * \brief Macro for HW_SIPO_H
37 * \author Andrea Grandi <andrea@develer.com>
38 * \author Daniele Basile <asterix@develer.com>
44 #include <cfg/macros.h>
49 * Mapping sipo connection on board.
50 * See schematics for more info.
61 //Set output pin for sipo
62 #define SCK_OUT (DDRB |= BV(PB1)) // Shift register clock input pin
63 #define SOUT_OUT (DDRB |= BV(PB2)) // Serial data input pin
64 #define SLOAD_OUT (DDRB |= BV(PB3)) // Storage register clock input pin
65 #define OE_OUT (DDRG |= BV(PG3)) // Output enable pin
68 #define SCK_HIGH (PORTB |= BV(PB1))
69 #define SCK_LOW (PORTB &= ~BV(PB1))
70 #define SOUT_OUT_HIGH (PORTB |= BV(PB2))
71 #define SOUT_OUT_LOW (PORTB &= ~BV(PB2))
72 #define SLOAD_OUT_HIGH (PORTB |= BV(PB3))
73 #define SLOAD_OUT_LOW (PORTB &= ~BV(PB3))
74 #define OE_LOW (PORTG &= BV(PG3))
77 * Define the macros needed to set the serial input bit of SIPO device
80 #define SIPO_SI_HIGH() SOUT_OUT_HIGH
81 #define SIPO_SI_LOW() SOUT_OUT_LOW
84 * Drive pin to load the bit, presented in serial-in pin,
85 * into sipo shift register.
87 #define SIPO_SI_CLOCK(clk_pol) \
95 * Clock the content of shift register to output.
97 #define SIPO_LOAD(device, load_pol) \
106 * Enable the shift register output.
108 #define SIPO_ENABLE() OE_LOW;
111 * Set logic level for load signal
113 #define SIPO_SET_LD_LEVEL(device, load_pol) \
124 * Sel logic level for clock signal
126 #define SIPO_SET_CLK_LEVEL(clock_pol) \
134 #define SIPO_SET_SI_LEVEL() SIPO_SI_LOW()
137 * Do everything needed in order to init the SIPO pins.
139 #define SIPO_INIT_PIN() \
149 #endif /* HW_SIPO_H */