Nothing.

Initializes the Glcd module. Each of the control lines is both port and pin configurable, while data lines must be on a single port (pins <0:7>).

Global variables :

• GLCD_CS1 : Chip select 1 signal pin
• GLCD_CS2 : Chip select 2 signal pin
• GLCD_RS : Register select signal pin
• GLCD_RW : Read/Write Signal pin
• GLCD_EN : Enable signal pin
• GLCD_RST : Reset signal pin
• GLCD_DataPort : Data port


• GLCD_CS1_Direction : Direction of the Chip select 1 pin
• GLCD_CS2_Direction : Direction of the Chip select 2 pin
• GLCD_RS_Direction : Direction of the Register select signal pin
• GLCD_RW_Direction : Direction of the Read/Write signal pin
• GLCD_EN_Direction : Direction of the Enable signal pin
• GLCD_RST_Direction : Direction of the Reset signal pin

// Glcd module connections
var GLCD_DataPort : byte at PORTD;

var GLCD_CS1 : sbit at RB0_bit;
    GLCD_CS2 : sbit at RB1_bit;
    GLCD_RS  : sbit at RB2_bit;
    GLCD_RW  : sbit at RB3_bit;
    GLCD_EN  : sbit at RB4_bit;
    GLCD_RST : sbit at RB5_bit;

var GLCD_CS1_Direction : sbit at TRISB0_bit;
    GLCD_CS2_Direction : sbit at TRISB1_bit;
    GLCD_RS_Direction  : sbit at TRISB2_bit;
    GLCD_RW_Direction  : sbit at TRISB3_bit;
    GLCD_EN_Direction  : sbit at TRISB4_bit;
    GLCD_RST_Direction : sbit at TRISB5_bit;
// End Glcd module connections
ANSEL = 0;
ANSELH = 0;
Glcd_Init();

Nothing.

Selects Glcd side. Refer to the Glcd datasheet for detailed explanation.

Parameters :

• x_pos: position on x-axis. Valid values: 0..127

The parameter x_pos specifies the Glcd side: values from 0 to 63 specify the left side, values from 64 to 127 specify the right side.

  Note : For side, x axis and page layout explanation see schematic at the bottom of this page.

Glcd needs to be initialized, see Glcd_Init routine.

The following two lines are equivalent, and both of them select the left side of Glcd:

Glcd_Select_Side(0);
Glcd_Select_Side(10);

Nothing.

Sets x-axis position to x_pos dots from the left border of Glcd within the selected side.

Parameters :

• x_pos: position on x-axis. Valid values: 0..63

  Note : For side, x axis and page layout explanation see schematic at the bottom of this page.

Glcd needs to be initialized, see Glcd_Init routine.

Glcd_Set_X(25);

Nothing.

Selects page of the Glcd.

Parameters :

• page: page number. Valid values: 0..7

  Note : For side, x axis and page layout explanation see schematic at the bottom of this page.

Glcd needs to be initialized, see Glcd_Init routine.

Glcd_Set_Page(5);

One byte from Glcd memory.

Reads data from from the current location of Glcd memory and moves to the next location.

Glcd needs to be initialized, see Glcd_Init routine.

Glcd side, x-axis position and page should be set first. See functions Glcd_Set_Side, Glcd_Set_X, and Glcd_Set_Page.

var data_ : byte;
...
data_ := Glcd_Read_Data();

Nothing.

Writes one byte to the current location in Glcd memory and moves to the next location.

Parameters :

• ddata: data to be written

Glcd needs to be initialized, see Glcd_Init routine.

Glcd side, x-axis position and page should be set first. See functions Glcd_Set_Side, Glcd_Set_X, and Glcd_Set_Page.

var ddata: byte;
...
Glcd_Write_Data(ddata);

Nothing.

Function sets pointer to the user function which manipulates the external resource.

Parameters :

• TGLCD_Get_Ext_Data_Ptr - pointer to the user function.

User function prototype should be in the following format: function External(offset : dword; count : dword; var num : dword) : ^byte;

Parameters used in the function have the following meaning :

• offset - offset from the beginning of the resource from where the data is requested.
• count - requested number of bytes.
• num - variable for holding the returned number of bytes (less or equal to the number of acquired bytes).

Glcd module needs to be initialized. See the Glcd_Init routine.

Glcd_Set_Ext_Buffer(@ReadExternalBuffer);

Nothing.

Fills Glcd memory with the byte pattern.

Parameters :

• pattern: byte to fill Glcd memory with

To clear the Glcd screen, use Glcd_Fill(0).

To fill the screen completely, use Glcd_Fill(0xFF).

Glcd needs to be initialized, see Glcd_Init routine.

// Clear screen
Glcd_Fill(0);

Nothing.

Draws a dot on Glcd at coordinates (x_pos, y_pos).

Parameters :

• x_pos: x position. Valid values: 0..127
• y_pos: y position. Valid values: 0..63
• color: color parameter. Valid values: 0..2

The parameter color determines a dot state: 0 clears dot, 1 puts a dot, and 2 inverts dot state.

  Note : For x and y axis layout explanation see schematic at the bottom of this page.

Glcd needs to be initialized, see Glcd_Init routine.

// Invert the dot in the upper left corner
Glcd_Dot(0, 0, 2);

Nothing.

Draws a line on Glcd.

Parameters :

• x_start: x coordinate of the line start. Valid values: 0..127
• y_start: y coordinate of the line start. Valid values: 0..63
• x_end: x coordinate of the line end. Valid values: 0..127
• y_end: y coordinate of the line end. Valid values: 0..63
• color: color parameter. Valid values: 0..2

The parameter color determines the line color: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a line between dots (0,0) and (20,30)
Glcd_Line(0, 0, 20, 30, 1);

Nothing.

Draws a vertical line on Glcd.

Parameters :

• y_start: y coordinate of the line start. Valid values: 0..63
• y_end: y coordinate of the line end. Valid values: 0..63
• x_pos: x coordinate of vertical line. Valid values: 0..127
• color: color parameter. Valid values: 0..2

The parameter color determines the line color: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a vertical line between dots (10,5) and (10,25)
Glcd_V_Line(5, 25, 10, 1);

Nothing.

Draws a horizontal line on Glcd.

Parameters :

• x_start: x coordinate of the line start. Valid values: 0..127
• x_end: x coordinate of the line end. Valid values: 0..127
• y_pos: y coordinate of horizontal line. Valid values: 0..63
• color: color parameter. Valid values: 0..2

The parameter color determines the line color: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a horizontal line between dots (10,20) and (50,20)
Glcd_H_Line(10, 50, 20, 1);

Nothing.

Draws a rectangle on Glcd.

Parameters :

• x_upper_left: x coordinate of the upper left rectangle corner. Valid values: 0..127
• y_upper_left: y coordinate of the upper left rectangle corner. Valid values: 0..63
• x_bottom_right: x coordinate of the lower right rectangle corner. Valid values: 0..127
• y_bottom_right: y coordinate of the lower right rectangle corner. Valid values: 0..63
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the rectangle border: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a rectangle between dots (5,5) and (40,40)
Glcd_Rectangle(5, 5, 40, 40, 1);

Nothing.

Draws a rounded edge rectangle on Glcd.

Parameters :

• x_upper_left: x coordinate of the upper left rectangle corner. Valid values: 0..127
• y_upper_left: y coordinate of the upper left rectangle corner. Valid values: 0..63
• x_bottom_right: x coordinate of the lower right rectangle corner. Valid values: 0..127
• y_bottom_right: y coordinate of the lower right rectangle corner. Valid values: 0..63
• radius: radius of the rounded edge.
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the rectangle border: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a rounded edge rectangle between dots (5,5) and (40,40) with the edge radius of 12
Glcd_Rectangle_Round_Edges(5, 5, 40, 40, 12, 1);

Nothing.

Draws a filled rounded edge rectangle on Glcd.

Parameters :

• x_upper_left: x coordinate of the upper left rectangle corner. Valid values: 0..127
• y_upper_left: y coordinate of the upper left rectangle corner. Valid values: 0..63
• x_bottom_right: x coordinate of the lower right rectangle corner. Valid values: 0..127
• y_bottom_right: y coordinate of the lower right rectangle corner. Valid values: 0..63
• radius: radius of the rounded edge.
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the rectangle border: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a filled rounded edge rectangle between dots (5,5) and (40,40) with the edge radius of 12
Glcd_Rectangle_Round_Edges_Fill(5, 5, 40, 40, 12, 1);

Nothing.

Draws a box on Glcd.

Parameters :

• x_upper_left: x coordinate of the upper left box corner. Valid values: 0..127
• y_upper_left: y coordinate of the upper left box corner. Valid values: 0..63
• x_bottom_right: x coordinate of the lower right box corner. Valid values: 0..127
• y_bottom_right: y coordinate of the lower right box corner. Valid values: 0..63
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the box fill: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a box between dots (5,15) and (20,40)
Glcd_Box(5, 15, 20, 40, 1);

Nothing.

Draws a circle on Glcd.

Parameters :

• x_center: x coordinate of the circle center. Valid values: 0..127
• y_center: y coordinate of the circle center. Valid values: 0..63
• radius: radius size
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the circle line: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a circle with center in (50,50) and radius=10
Glcd_Circle(50, 50, 10, 1);

Nothing.

Draws a filled circle on Glcd.

Parameters :

• x_center: x coordinate of the circle center. Valid values: 0..127
• y_center: y coordinate of the circle center. Valid values: 0..63
• radius: radius size
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the circle line: 0 white, 1 black, and 2 inverts each dot.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw a filled circle with center in (50,50) and radius=10
Glcd_Circle_Fill(50, 50, 10, 1);

Nothing.

Sets font that will be used with Glcd_Write_Char and Glcd_Write_Text routines.

Parameters :

• activeFont: font to be set. Needs to be formatted as an array of char
• aFontWidth: width of the font characters in dots.
• aFontHeight: height of the font characters in dots.
• aFontOffs: number that represents difference between the mikroPascal PRO for PIC character set and regular ASCII set (eg. if 'A' is 65 in ASCII character, and 'A' is 45 in the mikroPascal PRO for PIC character set, aFontOffs is 20). Demo fonts supplied with the library have an offset of 32, which means that they start with space.

List of supported fonts:

• Font_Glcd_System3x5
• Font_Glcd_System5x7
• Font_Glcd_5x7
• Font_Glcd_Character8x7

For the sake of the backward compatibility, these fonts are supported also:

• System3x5 (equivalent to Font_Glcd_System3x5)
• FontSystem5x7_v2 (equivalent to Font_Glcd_System5x7)
• font5x7 (equivalent to Font_Glcd_5x7)
• Character8x7 (equivalent to Font_Glcd_Character8x7)

Glcd needs to be initialized, see Glcd_Init routine.

// Use the custom 5x7 font "myfont" which starts with space (32):
Glcd_Set_Font(@myfont, 5, 7, 32);

Sets font that will be used with Glcd_Write_Char_Adv and Glcd_Write_Text_Adv routines.

• activeFont: font to be set. Needs to be formatted as an array of char.
• font_color: sets font color.
• font_orientation: sets font orientation.

Nothing.

Glcd needs to be initialized, see Glcd_Init routine.

Glcd_Set_Font_Adv(@myfont, 0, 0);

None.

Sets font that will be used with Glcd_Write_Char_Adv and Glcd_Write_Text_Adv routines. Font is located in an external resource.

• activeFont: font to be set. This parameter represents the address in the exteral resource from where the font data begins.
• font_color: sets font color.
• font_orientation: sets font orientation.

Nothing.

Glcd needs to be initialized, see Glcd_Init routine.

Glcd_Set_Ext_Font_Adv(173296, 5, 7, 32);

None.

Nothing.

Prints character on the Glcd.

Parameters :

• chr: character to be written
• x_pos: character starting position on x-axis. Valid values: 0..(127-FontWidth)
• page_num: the number of the page on which character will be written. Valid values: 0..7
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the character: 0 white, 1 black, and 2 inverts each dot.

  Note : For x axis and page layout explanation see schematic at the bottom of this page.

Glcd needs to be initialized, see Glcd_Init routine. Use Glcd_Set_Font to specify the font for display; if no font is specified, then default Font_Glcd_System5x7 font supplied with the library will be used.

// Write character 'C' on the position 10 inside the page 2:
Glcd_Write_Char('C', 10, 2, 1);

Nothing.

Writes a char on the glcd at coordinates (x, y).

• ch: char to be written.
• x: char position on x-axis.
• y: char position on y-axis.

glcd module needs to be initialized. See the Glcd_Init routine.

Glcd_Write_Char_Adv('A',22,23);

Nothing.

Prints text on Glcd.

Parameters :

• text: text to be written
• x_pos: text starting position on x-axis.
• page_num: the number of the page on which text will be written. Valid values: 0..7
• color: color parameter. Valid values: 0..2

The parameter color determines the color of the text: 0 white, 1 black, and 2 inverts each dot.

  Note : For x axis and page layout explanation see schematic at the bottom of this page.

Glcd needs to be initialized, see Glcd_Init routine. Use Glcd_Set_Font to specify the font for display; if no font is specified, then default Font_Glcd_System5x7 font supplied with the library will be used.

// Write text "Hello world!" on the position 10 inside the page 2:
Glcd_Write_Text('Hello world!', 10, 2, 1);

Nothing.

Writes text on the glcd at coordinates (x, y).

Parameters :

• text: text to be written.
• x: text position on x-axis.
• y: text position on y-axis.

Glcd module needs to be initialized. See the Glcd_Init routine.

Glcd_Write_Text_Adv("GLCD LIBRARY DEMO, WELCOME !", 0, 0);	

Nothing.

Writes text located in the program memory on the glcd at coordinates (x, y).

Parameters :

• text: text to be written.
• x: text position on x-axis.
• y: text position on y-axis.

Glcd module needs to be initialized. See the Glcd_Init routine.

const ctext = 'mikroElektronika';
...
Glcd_Write_Const_Text_Adv(@ctext, 0, 0);

Nothing.

Displays bitmap on Glcd.

Parameters :

• image: image to be displayed. Bitmap array must be located in code memory.

Use the mikroPascal PRO for PIC integrated Glcd Bitmap Editor to convert image to a constant array suitable for displaying on Glcd.

Glcd needs to be initialized, see Glcd_Init routine.

// Draw image my_image on Glcd
Glcd_Image(@my_image);

Displays a bitmap from an external resource.

• image: image to be displayed. This parameter represents the address in the exteral resource from where the image data begins.

Nothing.

Glcd needs to be initialized, see Glcd_Init routine.

Glcd_Ext_Image(153608);

Use the mikroPascal PRO for AVR integrated Glcd Bitmap Editor, Tools > Glcd Bitmap Editor, to convert image to a constant array suitable for displaying on Glcd.

Nothing.

Displays a partial area of the image on a desired location.

Parameters :

• x_left: x coordinate of the desired location (upper left coordinate).
• y_top: y coordinate of the desired location (upper left coordinate).
• width: desired image width.
• height: desired image height.
• picture_width: width of the original image.
• picture_height: height of the original image.
• image: image to be displayed. Bitmap array is located in code memory.

Use the integrated Glcd Bitmap Editor (menu option Tools › Glcd Bitmap Editor) to convert image to a constant array suitable for displaying on Glcd.

  Note : Image dimension must match the display dimension.

Glcd needs to be initialized, see Glcd_Init routine.

// Draws a 10x15 part of the image starting from the upper left corner on the coordinate (10,12). Original image size is 16x32. 
Glcd_PartialImage(10, 12, 10, 15, 16, 32, @image);

Displays a partial area of the image, located on an external resource, on a desired location of the screen.

• x_left: x coordinate of the desired location (upper left coordinate).
• y_top: y coordinate of the desired location (upper left coordinate).
• width: desired image width.
• height: desired image height.
• picture_width: width of the original image.
• picture_height: height of the original image.
• image: image to be displayed. This parameter represents the address in the exteral resource from where the image data begins.

Nothing.

Glcd needs to be initialized, see Glcd_Init routine.

Glcd_Ext_PartialImage(10, 12, 10, 15, 16, 32, 0);

Use the mikroPascal PRO for AVR integrated Glcd Bitmap Editor, Tools > Glcd Bitmap Editor, to convert image to a constant array suitable for displaying on Glcd.