Mikroelektronika MIKROE-742 데이터 시트

406

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

procedure SPI_Glcd_Dot(x_pos : byte; y_pos : byte; color : byte)

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 the 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 for SPI communication, see SPI_Glcd_Init routines.

// Invert the dot in the upper left corner

SPI_Glcd_Dot(0, 0, 2);

procedure SPI_Glcd_Line(x_start : integer; y_start : integer;
x_end : integer; y_end : integer; color : byte);

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 

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

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

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