Subversion Repositories openrisc

//=============================================================================

//

//      7_segment_displays.h

//

//      Definitions for IQ80310 7-segment display.      

//

//=============================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos 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 or (at your option) any later version.

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   Scott Coulter, Jeff Frazier, Eric Breeden

// Contributors:

// Date:        2001-01-02

// Purpose:     

// Description: 

//

//####DESCRIPTIONEND####

//

//===========================================================================*/

/* Addresses of the 7-segment displays registers */

/* 08/25/00 jwf */

/* iq80310 address decode */

#define MSB_DISPLAY_REG         (volatile unsigned char *)0xfe840000    /* 7 segment 0 */

#define LSB_DISPLAY_REG         (volatile unsigned char *)0xfe850000    /* 7 segment 1 */

/* Values for the 7-segment displays */

#define DISPLAY_OFF     0xFF

#define ZERO            0xC0

#define ONE             0xF9

#define TWO             0xA4

#define THREE           0xB0

#define FOUR            0x99

#define FIVE            0x92

#define SIX             0x82

#define SEVEN           0xF8

#define EIGHT           0x80

#define NINE            0x90

#define LETTER_A        0x88

#define LETTER_B        0x83

#define LETTER_C        0xC6

#define LETTER_D        0xA1

#define LETTER_E        0x86

#define LETTER_F        0x8E

#define LETTER_I        0xCF

#define LETTER_L        0xC7

#define LETTER_P        0x8C

#define LETTER_S        0x92

#define DECIMAL_POINT   0x7F

#define DISPLAY_ERROR   0x06  /* Displays "E." */

/* Parameters for functions */

#define MSB                             0

#define LSB                             1

#define BOTH                            2

extern const unsigned char SevSegDecode[];