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display.h
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display.h
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// *************************************************************************************************
//
// Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
//
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// *************************************************************************************************
#ifndef __DISPLAY_H
#define __DISPLAY_H
// *************************************************************************************************
// Include section
#include "project_defs.h"
#ifdef RAM_BASED_RFBSL
// *************************************************************************************************
// Extern section
// Constants defined in library
extern const u8 lcd_font[];
extern const u8 * segments_lcdmem[];
extern const u8 segments_bitmask[];
extern const u8 itoa_conversion_table[][2];
// *************************************************************************************************
// Global Variable section
// Definitions for line access
# define LINE1 (1u)
# define LINE2 (2u)
// LCD display modes
# define SEG_OFF (0u)
# define SEG_ON (1u)
# define SEG_ON_BLINK_ON (2u)
# define SEG_ON_BLINK_OFF (3u)
# define SEG_OFF_BLINK_OFF (4u)
// 7-segment character bit assignments
# define SEG_A (BIT4)
# define SEG_B (BIT5)
# define SEG_C (BIT6)
# define SEG_D (BIT7)
# define SEG_E (BIT2)
# define SEG_F (BIT0)
# define SEG_G (BIT1)
// ------------------------------------------
// LCD symbols for easier access
//
// xxx_SEG_xxx = Seven-segment character (sequence 5-4-3-2-1-0)
// xxx_SYMB_xxx = Display symbol, e.g. "AM" for ante meridiem
// xxx_UNIT_xxx = Display unit, e.g. "km/h" for kilometers per hour
// xxx_ICON_xxx = Display icon, e.g. heart to indicate reception of heart rate data
// xxx_L1_xxx = Item is part of Line1 information
// xxx_L2_xxx = Item is part of Line2 information
// Symbols for Line1
# define LCD_SYMB_PERCENT 0
# define LCD_ICON_BEEPER1 1
# define LCD_ICON_BEEPER2 2
# define LCD_ICON_BEEPER3 3
// Line1 7-segments
# define LCD_SEG_L1_3 4
# define LCD_SEG_L1_2 5
# define LCD_SEG_L1_1 6
# define LCD_SEG_L1_0 7
# define LCD_SEG_L1_COL 8
# define LCD_SEG_L1_DP1 9
# define LCD_SEG_L1_DP0 10
// Line2 7-segments
# define LCD_SEG_L2_5 11
# define LCD_SEG_L2_4 12
# define LCD_SEG_L2_3 13
# define LCD_SEG_L2_2 14
# define LCD_SEG_L2_1 15
# define LCD_SEG_L2_0 16
# define LCD_SEG_L2_COL1 17
# define LCD_SEG_L2_COL0 18
# define LCD_SEG_L2_DP 19
// Line1 7-segment arrays
# define LCD_SEG_L1_3_0 70
# define LCD_SEG_L1_2_0 71
# define LCD_SEG_L1_1_0 72
# define LCD_SEG_L1_3_1 73
# define LCD_SEG_L1_3_2 74
// Line2 7-segment arrays
# define LCD_SEG_L2_5_0 90
# define LCD_SEG_L2_4_0 91
# define LCD_SEG_L2_3_0 92
# define LCD_SEG_L2_2_0 93
# define LCD_SEG_L2_1_0 94
# define LCD_SEG_L2_5_2 95
# define LCD_SEG_L2_3_2 96
# define LCD_SEG_L2_5_4 97
# define LCD_SEG_L2_4_2 98
// LCD controller memory map
# define LCD_MEM_1 ((u8*)0x0A20)
# define LCD_MEM_2 ((u8*)0x0A21)
# define LCD_MEM_3 ((u8*)0x0A22)
# define LCD_MEM_4 ((u8*)0x0A23)
# define LCD_MEM_5 ((u8*)0x0A24)
# define LCD_MEM_6 ((u8*)0x0A25)
# define LCD_MEM_7 ((u8*)0x0A26)
# define LCD_MEM_8 ((u8*)0x0A27)
# define LCD_MEM_9 ((u8*)0x0A28)
# define LCD_MEM_10 ((u8*)0x0A29)
# define LCD_MEM_11 ((u8*)0x0A2A)
# define LCD_MEM_12 ((u8*)0x0A2B)
// Memory assignment
# define LCD_SEG_L1_0_MEM (LCD_MEM_6)
# define LCD_SEG_L1_1_MEM (LCD_MEM_4)
# define LCD_SEG_L1_2_MEM (LCD_MEM_3)
# define LCD_SEG_L1_3_MEM (LCD_MEM_2)
# define LCD_SEG_L1_COL_MEM (LCD_MEM_1)
# define LCD_SEG_L1_DP1_MEM (LCD_MEM_1)
# define LCD_SEG_L1_DP0_MEM (LCD_MEM_5)
# define LCD_SEG_L2_0_MEM (LCD_MEM_8)
# define LCD_SEG_L2_1_MEM (LCD_MEM_9)
# define LCD_SEG_L2_2_MEM (LCD_MEM_10)
# define LCD_SEG_L2_3_MEM (LCD_MEM_11)
# define LCD_SEG_L2_4_MEM (LCD_MEM_12)
# define LCD_SEG_L2_5_MEM (LCD_MEM_12)
# define LCD_SEG_L2_COL1_MEM (LCD_MEM_1)
# define LCD_SEG_L2_COL0_MEM (LCD_MEM_5)
# define LCD_SEG_L2_DP_MEM (LCD_MEM_9)
# define LCD_SYMB_PERCENT_MEM (LCD_MEM_5)
# define LCD_ICON_BEEPER1_MEM (LCD_MEM_5)
# define LCD_ICON_BEEPER2_MEM (LCD_MEM_6)
# define LCD_ICON_BEEPER3_MEM (LCD_MEM_7)
// Bit masks for write access
# define LCD_SEG_L1_0_MASK (BIT2 + BIT1 + BIT0 + BIT7 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L1_1_MASK (BIT2 + BIT1 + BIT0 + BIT7 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L1_2_MASK (BIT2 + BIT1 + BIT0 + BIT7 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L1_3_MASK (BIT2 + BIT1 + BIT0 + BIT7 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L1_COL_MASK (BIT5)
# define LCD_SEG_L1_DP1_MASK (BIT6)
# define LCD_SEG_L1_DP0_MASK (BIT2)
# define LCD_SEG_L2_0_MASK (BIT3 + BIT2 + BIT1 + BIT0 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L2_1_MASK (BIT3 + BIT2 + BIT1 + BIT0 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L2_2_MASK (BIT3 + BIT2 + BIT1 + BIT0 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L2_3_MASK (BIT3 + BIT2 + BIT1 + BIT0 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L2_4_MASK (BIT3 + BIT2 + BIT1 + BIT0 + BIT6 + BIT5 + BIT4)
# define LCD_SEG_L2_5_MASK (BIT7)
# define LCD_SEG_L2_COL1_MASK (BIT4)
# define LCD_SEG_L2_COL0_MASK (BIT0)
# define LCD_SEG_L2_DP_MASK (BIT7)
# define LCD_SYMB_PERCENT_MASK (BIT4)
# define LCD_ICON_BEEPER1_MASK (BIT3)
# define LCD_ICON_BEEPER2_MASK (BIT3)
# define LCD_ICON_BEEPER3_MASK (BIT3)
# define LCD_DISPLAY_DONE (1u)
# define LCD_DISPLAY_RFBSL (2u)
# define LCD_DISPLAY_FAIL (3u)
// *************************************************************************************************
// API section
// Physical LCD memory write
extern void write_lcd_mem(u8 * lcdmem, u8 bits, u8 bitmask, u8 state);
// Display init / clear
extern void lcd_init(void);
extern void clear_display(void);
// Character / symbol draw functions
extern void display_char(u8 segment, u8 chr, u8 mode);
extern void display_chars(u8 line, u8 * str);
extern void display_symbol(u8 symbol, u8 mode);
// Integer to string conversion
extern u8 *itoa(u32 n, u8 digits, u8 blanks);
// Segment index helper function
extern u8 switch_seg(u8 line, u8 index1, u8 index2);
#endif // RAM_BASED_RFBSL
#endif // __DISPLAY_