Hendrik Lipka / LcdWindow

Display text on LCD displays (even on multiple ones). Allow to create windows (frames) on display, and to combine them (split, add, duplicate, scroll). See http://mbed.org/users/hlipka/notebook/lcdwindow/ for more information.

Dependents:   Mbell

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KS0108LCD8bit Class Reference
Public Member Functions

KS0108LCD8bit Class Reference

class for connecting graphical KS0108-based LCD-Display (or using similiar controllers) displays are connected in 8bit-mode for displaying ASCII, the vincent font from http://forum.osdev.org/viewtopic.php?f=2&t=22033 is used (courtesy to Quinn Evans) More...

#include <ks0108_8bit.h>

Inherits TextLCDBase.

Public Member Functions

 KS0108LCD8bit (const unsigned int columns, const unsigned int rows, BusOut *data, const PinName enable, const PinName rs, const PinName leftCS, const PinName rightCS)
virtual void init ()
 this is the only function added to the Window interface it must be called from the outside, and initializes the display.
virtual void writeText (const unsigned int column, const unsigned int row, const char text[])
 write text into the window, at the given position.
virtual void clear ()
 clears the window
virtual void character (int column, int row, int c)
 writes a character to the specified position must be public because it is used during delegation
virtual int getRows ()
virtual int getColumns ()
virtual void locate (int column, int row)
 set (internal) cursor to a screen column and row
int putc (int c)
 Write a character to the LCD, on the position specified by the cursor sets the cursor to the next position, and wraps (from right to left, next line, and from bottom back to top)
int printf (const char *format,...)
 Write a formated string to the LCD, on the position specified by the cursor does wrap around (as specified by putc)

Detailed Description

class for connecting graphical KS0108-based LCD-Display (or using similiar controllers) displays are connected in 8bit-mode for displaying ASCII, the vincent font from http://forum.osdev.org/viewtopic.php?f=2&t=22033 is used (courtesy to Quinn Evans)

Definition at line 39 of file ks0108_8bit.h.

Constructor & Destructor Documentation

KS0108LCD8bit ( const unsigned int  columns,
const unsigned int  rows,
BusOut *  data,
const PinName  enable,
const PinName  rs,
const PinName  leftCS,
const PinName  rightCS 
)
Parameters:
columnsnumber of chars per line (using an 8x8 font)
rowsnumber of lines (using an 8x8 font)
datathe bus object used for sending data (must be 8bit)
enablethe pin name for the enable line (1=active)
rsthe pin name for the register select line (0=cmd, 1=data)
leftCSthe pin name for the left display half (1=active)
rightCSthe pin name for the right display half (1=active, use NC for smaller displays)

Definition at line 97 of file ks0108_8bit.cpp.

Member Function Documentation

void character ( int  column,
int  row,
int  c 
) [virtual]

writes a character to the specified position must be public because it is used during delegation

Parameters:
columnThe horizontal position from the left, indexed from 0
rowThe vertical position from the top, indexed from 0
cthe character

Implements Window.

Definition at line 65 of file ks0108_8bit.cpp.

void clear (  ) [virtual]

clears the window

Implements Window.

Definition at line 41 of file ks0108_8bit.cpp.

virtual int getColumns (  ) [virtual, inherited]
Parameters:
returnsthe width of the window

Implements Window.

Definition at line 41 of file lcd.h.

virtual int getRows (  ) [virtual, inherited]
Parameters:
returnsthe height of the window

Implements Window.

Definition at line 40 of file lcd.h.

void init (  ) [virtual]

this is the only function added to the Window interface it must be called from the outside, and initializes the display.

Implements TextLCDBase.

Definition at line 115 of file ks0108_8bit.cpp.

void locate ( int  column,
int  row 
) [virtual, inherited]

set (internal) cursor to a screen column and row

Parameters:
columnThe horizontal position from the left, indexed from 0
rowThe vertical position from the top, indexed from 0

Definition at line 26 of file window.cpp.

int printf ( const char *  format,
  ... 
) [inherited]

Write a formated string to the LCD, on the position specified by the cursor does wrap around (as specified by putc)

Parameters:
formatA printf-style format string, followed by the variables to use in formating the string.

Reimplemented in TextLCDAdapter.

int putc ( int  c ) [inherited]

Write a character to the LCD, on the position specified by the cursor sets the cursor to the next position, and wraps (from right to left, next line, and from bottom back to top)

Parameters:
cThe character to write to the display

Reimplemented in TextLCDAdapter.

void writeText ( const unsigned int  column,
const unsigned int  row,
const char  text[] 
) [virtual]

write text into the window, at the given position.

this doesn't change the internal cursor position Implementations should check for the length of the text and shorten it accordingly. columns the column where to write row the line where to write text the text to write

Implements Window.

Definition at line 33 of file ks0108_8bit.cpp.

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