lcd.c File Reference

LCD handling functions. More...

#include <msp430x44x.h>
#include <msp430/basic_clock.h>
#include <msp430/system_clock.h>
#include <sys/types.h>
#include <signal.h>
#include "lcd.h"
#include "uart.h"

Include dependency graph for lcd.c:

Go to the source code of this file.

Defines
#define	__DEBUG__   1
#define	CA   (16)
#define	CB   (1)
#define	CC   (4)
#define	CD   (8)
#define	CE   (64)
#define	CF   (32)
#define	CG   (2)
#define	CA   (1)
#define	CB   (2)
#define	CC   (4)
#define	CD   (128)
#define	CE   (64)
#define	CF   (16)
#define	CG   (32)
#define	a   (0x80)
#define	b   (0x40)
#define	c   (0x20)
#define	d   (0x01)
#define	e   (0x02)
#define	f   (0x08)
#define	g   (0x04)
#define	h   (0x10)
Functions
void	LCD_init ()
	Initializes LCD driver.
void	LCD_clear ()
	Clear all segment of LCD.
void	LCD_all ()
	Shows all segment of LCD.
void	LCD_clearClock ()
	Clear segments of clock on LCD (four digit at top-right).
void	LCD_writeClockInt (uint16_t value, bool_t paddingZeroes)
	Write an integer variable to clock part of LCD (four digit at top-right).
void	LCD_setClockColon (bool_t on)
	Shows or hides colon on clock part of LCD (four digit at top-right).
void	LCD_setClockDot (uint8_t position, bool_t on)
	Shows or hides dots on clock part of LCD (four digit at top-right).
void	LCD_writeClockDigit (uint8_t position, uint8_t digit)
	Write a digit to clock part of LCD (four digit at top-right).
void	LCD_writeInt (int number)
	Write an integer variable to LCD.
void	LCD_printf (const char *fmt,...)
	Write a formatted string to LCD.
void	LCD_write (const char *buf, uint8_t length)
	Write a character buffer to LCD.
void	LCD_showArrows (uint8_t arrows)
	Shows arrows.
void	LCD_clearArrows (uint8_t arrows)
	Clear arrows.
void	LCD_showBatteryLevel (uint8_t level)
	Shows battery level.
void	LCD_setColon (uint8_t position, bool_t on)
	Shows or hides colon.
void	LCD_writeLetter (uint8_t position, char letter)
	Write an alphanumeric character to LCD.
Variables
char *	LCD = LCDMEM
	Pointer to access LCD memory.

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Detailed Description

LCD handling functions.

Author:

Peter Ivanov, Muneem Shahriar

Definition in file lcd.c.

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Define Documentation

#define __DEBUG__   1

Definition at line 25 of file lcd.c.

#define a   (0x80)

Definition at line 444 of file lcd.c.

#define b   (0x40)

Definition at line 445 of file lcd.c.

#define c   (0x20)

Definition at line 446 of file lcd.c.

#define CA   (1)

#define CA   (16)

#define CB   (2)

#define CB   (1)

#define CC   (4)

#define CC   (4)

#define CD   (128)

#define CD   (8)

#define CE   (64)

#define CE   (64)

#define CF   (16)

#define CF   (32)

#define CG   (32)

#define CG   (2)

#define d   (0x01)

Definition at line 447 of file lcd.c.

#define e   (0x02)

Definition at line 448 of file lcd.c.

#define f   (0x08)

Definition at line 449 of file lcd.c.

#define g   (0x04)

Definition at line 450 of file lcd.c.

#define h   (0x10)

Definition at line 451 of file lcd.c.

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Function Documentation

void LCD_all

(

)

Shows all segment of LCD.

Useful for testing the LCD.

Author:

Peter Ivanov, Muneem Shahriar

Definition at line 50 of file lcd.c.

void LCD_clear

(

)

Clear all segment of LCD.

Author:

Peter Ivanov, Muneem Shahriar

Definition at line 41 of file lcd.c.

void LCD_clearArrows

(

uint8_t

arrows

)

Clear arrows.

Author:

Peter Ivanov

Input:

Parameters:

arrows

Which arrow has to clear: LCD_ARROW_UP | LCD_ARROW_DOWN | LCD_ARROW_RIGHT | LCD_ARROW_LEFT | LCD_ARROW_ALL.

Definition at line 458 of file lcd.c.

void LCD_clearClock

(

)

Clear segments of clock on LCD (four digit at top-right).

Author:

Peter Ivanov

Definition at line 59 of file lcd.c.

void LCD_init

(

)

Initializes LCD driver.

Author:

Peter Ivanov, Muneem Shahriar

Definition at line 29 of file lcd.c.

void LCD_printf	(	const char *	fmt,
			...
	)

Write a formatted string to LCD.

Example:

LCD_printf ("I %02i", i);

Author:

Peter Ivanov

Input:

Parameters:

fmt

Printf format string. e.g.: "I %02i"

Definition at line 422 of file lcd.c.

void LCD_setClockColon

(

bool_t

on

)

Shows or hides colon on clock part of LCD (four digit at top-right).

Author:

Peter Ivanov

Input:

Parameters:

on

TRUE: switch on colon, FALSE: switch off colon.

Definition at line 102 of file lcd.c.

void LCD_setClockDot	(	uint8_t	position,
		bool_t	on
	)

Shows or hides dots on clock part of LCD (four digit at top-right).

Author:

Peter Ivanov

Input:

Parameters:

	position	0..2: 0 is the dot at most right digit.
	on	TRUE: switch on dot, FALSE: switch off dot.

Definition at line 114 of file lcd.c.

void LCD_setColon	(	uint8_t	position,
		bool_t	on
	)

Shows or hides colon.

Author:

Peter Ivanov

Input:

Parameters:

	position	0..5: 0 is the dot at most right digit.
	on	TRUE: switch on colon, FALSE: switch off colon.

Definition at line 474 of file lcd.c.

void LCD_showArrows

(

uint8_t

arrows

)

Shows arrows.

Author:

Peter Ivanov

Input:

Parameters:

arrows

Which arrow has to display: LCD_ARROW_UP | LCD_ARROW_DOWN | LCD_ARROW_RIGHT | LCD_ARROW_LEFT | LCD_ARROW_ALL.

Definition at line 453 of file lcd.c.

void LCD_showBatteryLevel

(

uint8_t

level

)

Shows battery level.

Author:

Peter Ivanov

Input:

Parameters:

level

Valid values are 0..3: 0: Zero battery, 1: Low battery, 2: Medium battery, 3: Full battery.

Definition at line 463 of file lcd.c.

void LCD_write	(	const char *	buf,
		uint8_t	length
	)

Write a character buffer to LCD.

Author:

Peter Ivanov

Input:

Parameters:

	buf	Pointer to buffer.
	length	Length of buffer.

Definition at line 433 of file lcd.c.

void LCD_writeClockDigit	(	uint8_t	position,
		uint8_t	digit
	)

Write a digit to clock part of LCD (four digit at top-right).

Author:

Peter Ivanov

Input:

Parameters:

	position	0..3: 0 is the most right digit.
	digit	0..9: digit to display. -1: clear digit.

Definition at line 163 of file lcd.c.

void LCD_writeClockInt	(	uint16_t	value,
		bool_t	paddingZeroes
	)

Write an integer variable to clock part of LCD (four digit at top-right).

Author:

Peter Ivanov

Input:

Parameters:

	value	Integer value to display: 0..9999.
	paddingZeroes	Display zeroes if number of digits are less than four.

Definition at line 68 of file lcd.c.

void LCD_writeInt

(

int

number

)

Write an integer variable to LCD.

Author:

Peter Ivanov, Muneem Shahriar

Input:

Parameters:

number

Integer value to display: 0..9999999.

Definition at line 390 of file lcd.c.

void LCD_writeLetter	(	uint8_t	position,
		char	letter
	)

Write an alphanumeric character to LCD.

Author:

Peter Ivanov, Muneem Shahriar

Input:

Parameters:

	position	0..5: 0 the most right digit.
	letter	Implemented characters: A-Z 0-9 . : , / \

Definition at line 500 of file lcd.c.

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Variable Documentation

char* LCD = LCDMEM

Pointer to access LCD memory.

Definition at line 27 of file lcd.c.

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