lcdgraphics.c File Reference

Template for LCD MP3 Functions. More...

#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include "types.h"
#include "lcdgraphics.h"

Include dependency graph for lcdgraphics.c:

Go to the source code of this file.

Functions
void	LCD_Initialize (void)
	Initialize hardware.
void	LCD_Blank (void)
	clear LCD
void	LCD_Sleep (void)
	Put LCD into powersave mode.
void	LCD_Wake (void)
	Wake LCD from powersave mode.
void	LCD_PrintfU4 (uint8 Data)
	Print a single 4bit digit.
void	LCD_PrintfU8 (uint8 Data)
	Print two 4bit Digits.
uint8	LCD_Time (uint16 data)
	Print Play time on display.
uint8	LCD_FileName (uint8 resetScroll)
	Print long filename on display.
void	LCD_Play (void)
	Display the "playing" symbol.
void	LCD_Stop (void)
	Display the "stopped" symbol.
void	LCD_Pause (void)
	Display the "Paused" symbol.
void	LCD_Vol (uint8 volume, uint8 boostOn)
	Show the volume.
uint8	LCD_Tester (void)
	Print the startup message to the LCD screen.
void	LCD_Scanning (void)
	Print Sanning message while searching MMC.
void	LCD_Battery (uint8 percentage)
	Print Battery Status on LCD.

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Detailed Description

Template for LCD MP3 Functions.

Author:

Nick Lott

Date:

September 2004

This file is a dummy template for implementing a display on the mp3 player. It is included when no other display is chosen during compile time. You can use this as a basis for future dislpays such as serial or other LCD systems.

This file represents a convergence of a number of code snippets found on the web, some of the Yampp system by Jesper Hansen and the work done by Sylvain.Bissonnette@microsyl.com. The goal of this code is to run the graphical LCD for the Butterfly MP3 project. http://butterflymp3.sourceforge.net/

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

Definition in file lcdgraphics.c.

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Function Documentation

void LCD_Battery

(

uint8

percentage

)

Print Battery Status on LCD.

Definition at line 204 of file lcdgraphics.c.

Referenced by update_LCD().

void LCD_Blank

(

void

)

clear LCD

Definition at line 61 of file lcdgraphics.c.

Referenced by update_LCD().

uint8 LCD_FileName

(

uint8

resetScroll

)

Print long filename on display.

Parameters:

name[]

null terminated string containing filename

Definition at line 142 of file lcdgraphics.c.

Referenced by mainTimer(), open_Dir(), and update_LCD().

void LCD_Initialize

(

void

)

Initialize hardware.

Definition at line 52 of file lcdgraphics.c.

Referenced by init_HW().

void LCD_Pause

(

void

)

Display the "Paused" symbol.

Definition at line 168 of file lcdgraphics.c.

Referenced by update_LCD().

void LCD_Play

(

void

)

Display the "playing" symbol.

Definition at line 150 of file lcdgraphics.c.

Referenced by update_LCD().

void LCD_PrintfU4

(

uint8

Data

)

Print a single 4bit digit.

Parameters:

Data	8bit int to print, upper nibble is ignored

Definition at line 93 of file lcdgraphics.c.

void LCD_PrintfU8

(

uint8

Data

)

Print two 4bit Digits.

Parameters:

Data	8bit int to print

Definition at line 115 of file lcdgraphics.c.

void LCD_Scanning

(

void

)

Print Sanning message while searching MMC.

Definition at line 196 of file lcdgraphics.c.

Referenced by open_Dir().

void LCD_Sleep

(

void

)

Put LCD into powersave mode.

Definition at line 70 of file lcdgraphics.c.

Referenced by Power_off().

void LCD_Stop

(

void

)

Display the "stopped" symbol.

Definition at line 159 of file lcdgraphics.c.

Referenced by update_LCD().

uint8 LCD_Tester

(

void

)

Print the startup message to the LCD screen.

Returns:

uint8 status code (always zero)

Definition at line 186 of file lcdgraphics.c.

Referenced by update_LCD().

uint8 LCD_Time

(

uint16

data

)

Print Play time on display.

Parameters:

data[]

16bit integer array containting play time information.

Definition at line 132 of file lcdgraphics.c.

Referenced by update_LCD().

void LCD_Vol	(	uint8	volume,
		uint8	boostOn
	)

Show the volume.

Parameters:

uint8

containing the volumt lower nibble is used.

Definition at line 177 of file lcdgraphics.c.

Referenced by update_LCD().

void LCD_Wake

(

void

)

Wake LCD from powersave mode.

Definition at line 79 of file lcdgraphics.c.

Referenced by Power_off().