Mikroelektronika MIKROE-742 데이터 시트

411

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

procedure SPI_Glcd_Write_Text(var text : array[40] of byte; x_pos
: byte; page_numb : byte; color : byte);

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 for SPI communication, see SPI_Glcd_Init routines.

Use the SPI_Glcd_Set_Font to specify the font for display; if no font is speci-
fied, then the default 5x8 font supplied with the library will be used.

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

procedure SPI_Glcd_Image(const image : ^byte);

Nothing.

Displays bitmap on Glcd.

Parameters : 

- 

image

: image to be displayed. Bitmap array can be located in both code and 

RAM memory (due to the mikroPascal PRO for AVR pointer to const and 
pointer to RAM equivalency). 

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

Glcd needs to be initialized for SPI communication, see SPI_Glcd_Init routines.

// Draw image my_image on Glcd

SPI_Glcd_Image(my_image);