TFT Display

Functions
void	TFT_Initialize (void)
	This function intializes the display controller and prepares it for any subsequent operations. More...
void	TFT_WriteCommand (unsigned char command)
	This function writes a command byte to the display controller. More...
void	TFT_WriteData (unsigned char datab)
	This function is used to write data to the TFT controller. More...
void	TFT_WriteDataWord (int wdata)
	This function writes a 16 bit word on the display controller registers. More...
void	TFT_RamAdress (void)
void	TFT_SetPixel (unsigned char x_start, unsigned char y_start, unsigned int color)
	This functions sets a specific pixel on the TFT display. More...
void	TFT_Sleep (void)
	Puts the display in a low power mode. More...
void	TFT_WakeUp (void)
	Wakes the display from sleep mode. More...
void	TFT_TurnOffDisplay (void)
	Blanks out the display. More...
void	TFT_TurnOnDisplay (void)
	This function turns on the display from idle mode. More...
void	TFT_SetOrientation (orientation_t mode)
	Sets the display text orientation. Mirrored modes are also supported on top of portrait and landscape modes. More...
void	TFT_InvertDisplay (void)
	Enables color inversion on the display. More...
void	TFT_InvertDisplayOff (void)
	Disables color inversion on the display. More...
void	TFT_Background (int color)
	This function paints the display background a specific color. More...
void	TFT_ShowPic (unsigned int picture[], unsigned char width, unsigned char height, unsigned int x, unsigned int y)
	This function paints an image with a specific heigh and width on the display at a specific coordinate. More...
void	TFT_DisplayImage (Image_t *image, unsigned char x, unsigned char y)
	This function displays an image of type Image_t on screen. More...
unsigned int	TFT_Color565 (unsigned char r, unsigned char g, unsigned char b)
	Pass 8-bit (each) R,G,B, get back 16-bit packed color. More...
void	TFT_ASCII (char x, char y, int color, int background, char letter, char size)
	Plot an ASCII char on the display. A specific font is used. More...
void	TFT_PrintString (char x, char y, int color, int background, char *message, char size)
	Orint a colored string at coordinates x,y with a specific font size. More...
void	TFT_PrintInteger (char x, char y, int color, int background, int integer, char size)
	Prints an integer at coordinates x,y with a specific color on a specific background. The integer font size is deterined bu var size. More...

Variables
const unsigned char	FontASCII8X16 []
const unsigned char	FontASCII8X16 []
const unsigned char	FontASCII8X16 []
const unsigned char	FontASCII8X16 []

Detailed Description

TFT driver for ST7735 controller 1.8 inch display.

Function Documentation

void TFT_ASCII	(	char	x,
		char	y,
		int	color,
		int	background,
		char	letter,
		char	size
	)

Plot an ASCII char on the display. A specific font is used.

Parameters

x	X coordinates
y	Y coordinates
color	Color of numbers above background.
background	Color of text background.
letter	Ascii character to print
size	Size of font

Returns

none

Definition at line 399 of file TFT.c.

void TFT_Background

(

int

color

)

This function paints the display background a specific color.

Parameters

color

Color of the background

Returns

none

Examples:

CapacitiveTouch.c.

Definition at line 324 of file TFT.c.

unsigned int TFT_Color565	(	unsigned char	r,
		unsigned char	g,
		unsigned char	b
	)

Pass 8-bit (each) R,G,B, get back 16-bit packed color.

Parameters

r	Red color
g	Green color
b	Blue color

Returns

16 bit packed rgb

Definition at line 384 of file TFT.c.

void TFT_DisplayImage	(	Image_t *	image,
		unsigned char	x,
		unsigned char	y
	)

This function displays an image of type Image_t on screen.

Parameters

image	Image type structure
x	Start X coordinate
y	Start Y coordinate

Returns

none

Definition at line 363 of file TFT.c.

void TFT_Initialize

(

void

)

This function intializes the display controller and prepares it for any subsequent operations.

Returns

none

Examples:

CapacitiveTouch.c.

Definition at line 24 of file TFT.c.

void TFT_InvertDisplay

(

void

)

Enables color inversion on the display.

Returns

none

Definition at line 305 of file TFT.c.

void TFT_InvertDisplayOff

(

void

)

Disables color inversion on the display.

Returns

none

Definition at line 314 of file TFT.c.

void TFT_PrintInteger	(	char	x,
		char	y,
		int	color,
		int	background,
		int	integer,
		char	size
	)

Prints an integer at coordinates x,y with a specific color on a specific background. The integer font size is deterined bu var size.

Parameters

x	Initial X coordinates
y	Initial Y coordinates
color	Color of numbers above background.
background	Color of text background.
integer	Number to print as an int
size	Size of font

Returns

none

Definition at line 465 of file TFT.c.

void TFT_PrintString	(	char	x,
		char	y,
		int	color,
		int	background,
		char *	message,
		char	size
	)

Orint a colored string at coordinates x,y with a specific font size.

Parameters

x	Initial X coordinates
y	Initial Y coordinates
color	Color of numbers above background.
background	Color of text background.
message	Pointer to string array of chars
size	Size of font

Returns

none

Definition at line 440 of file TFT.c.

void TFT_RamAdress

(

void

)

Set RAM address for controller.

Returns

none

Definition at line 183 of file TFT.c.

void TFT_SetOrientation

(

orientation_t

mode

)

Sets the display text orientation. Mirrored modes are also supported on top of portrait and landscape modes.

Parameters

mode	orientation data type

Returns

none

Definition at line 269 of file TFT.c.

void TFT_SetPixel	(	unsigned char	x_start,
		unsigned char	y_start,
		unsigned int	color
	)

This functions sets a specific pixel on the TFT display.

Parameters

x_start	Starting X coordinate
y_start	Starting y coordinate
color	Color of the pixel

Returns

none

Definition at line 206 of file TFT.c.

void TFT_ShowPic	(	unsigned int	picture[],
		unsigned char	width,
		unsigned char	height,
		unsigned int	x,
		unsigned int	y
	)

This function paints an image with a specific heigh and width on the display at a specific coordinate.

Parameters

picture[]	Integer array containg picture image in rgb565 format
width	Image width
height	Image height
x	X coordinates of image
y	Y coordinates of image

Returns

none

Definition at line 342 of file TFT.c.

void TFT_Sleep

(

void

)

Puts the display in a low power mode.

Returns

none

Definition at line 229 of file TFT.c.

void TFT_TurnOffDisplay

(

void

)

Blanks out the display.

Returns

none

Definition at line 249 of file TFT.c.

void TFT_TurnOnDisplay

(

void

)

This function turns on the display from idle mode.

Returns

none

Definition at line 258 of file TFT.c.

void TFT_WakeUp

(

void

)

Wakes the display from sleep mode.

Returns

none

Definition at line 239 of file TFT.c.

void TFT_WriteCommand

(

unsigned char

command

)

This function writes a command byte to the display controller.

Parameters

command

Commnand byte.

Returns

none

Definition at line 144 of file TFT.c.

void TFT_WriteData

(

unsigned char

datab

)

This function is used to write data to the TFT controller.

Parameters

datab

Byte data

Returns

none

Definition at line 157 of file TFT.c.

void TFT_WriteDataWord

(

int

wdata

)

This function writes a 16 bit word on the display controller registers.

Parameters

wdata

16 bit word data.

Returns

none

Definition at line 170 of file TFT.c.

Variable Documentation

const unsigned char FontASCII8X16[]

const unsigned char FontASCII8X16[]

const unsigned char FontASCII8X16[]

const unsigned char FontASCII8X16[]