Display - ILI9325 Controller

Low-level driver for the ILI9325 LCD controller.

This driver provides access to the main features of the ILI9325 controller.

Modules
	Related Project(s)
	In this section you can find all the projects related to the Display - ILI9325 Controller.

Macros
#define	LCD_DATA_CACHE_SIZE   ILI9325_LCD_WIDTH

Functions
static void	ili9325_check_box_coordinates (uint32_t *p_ul_x1, uint32_t *p_ul_y1, uint32_t *p_ul_x2, uint32_t *p_ul_y2)
	Check box coordinates. More...
void	ili9325_copy_pixels_from_screen (ili9325_color_t *pixels, uint32_t count)
	Copy pixels from the screen to a pixel buffer. More...
void	ili9325_copy_pixels_to_screen (const ili9325_color_t *pixels, uint32_t count)
	Copy pixels from SRAM to the screen. More...
void	ili9325_copy_raw_pixel_24bits_to_screen (const uint8_t *raw_pixels, uint32_t count)
	Copy pixels from SRAM to the screen. More...
static void	ili9325_delay (uint32_t ul_ms)
	Delay function. More...
void	ili9325_disable_scroll (void)
	Disable the scrolling feature. More...
void	ili9325_display_off (void)
	Turn off the LCD. More...
void	ili9325_display_on (void)
	Turn on the LCD. More...
static void	ili9325_draw_char (uint32_t ul_x, uint32_t ul_y, uint8_t uc_c)
	Draw an ASCII character on LCD. More...
uint32_t	ili9325_draw_circle (uint32_t ul_x, uint32_t ul_y, uint32_t ul_r)
	Draw a circle on LCD. More...
uint32_t	ili9325_draw_filled_circle (uint32_t ul_x, uint32_t ul_y, uint32_t ul_r)
	Draw a filled circle on LCD. More...
void	ili9325_draw_filled_rectangle (uint32_t ul_x1, uint32_t ul_y1, uint32_t ul_x2, uint32_t ul_y2)
	Draw a filled rectangle on LCD. More...
void	ili9325_draw_line (uint32_t ul_x1, uint32_t ul_y1, uint32_t ul_x2, uint32_t ul_y2)
	Draw a line on LCD. More...
static void	ili9325_draw_line_bresenham (uint32_t ul_x1, uint32_t ul_y1, uint32_t ul_x2, uint32_t ul_y2)
	Draw a line on LCD, which is not horizontal or vertical. More...
uint32_t	ili9325_draw_pixel (uint32_t ul_x, uint32_t ul_y)
	Draw a pixel on LCD. More...
void	ili9325_draw_pixmap (uint32_t ul_x, uint32_t ul_y, uint32_t ul_width, uint32_t ul_height, const ili9325_color_t *p_ul_pixmap)
	Draw a pixmap on LCD. More...
void	ili9325_draw_prepare (uint32_t ul_x, uint32_t ul_y, uint32_t ul_width, uint32_t ul_height)
	Prepare LCD to draw. More...
void	ili9325_draw_rectangle (uint32_t ul_x1, uint32_t ul_y1, uint32_t ul_x2, uint32_t ul_y2)
	Draw a rectangle on LCD. More...
void	ili9325_draw_string (uint32_t ul_x, uint32_t ul_y, const uint8_t *p_str)
	Draw a string on LCD. More...
void	ili9325_duplicate_pixel (const ili9325_color_t color, uint32_t count)
	Set a given number of pixels to the same color. More...
void	ili9325_enable_scroll (void)
	Enable the scrolling feature. More...
void	ili9325_fill (ili9325_color_t ul_color)
	Fill the LCD buffer with the specified color. More...
ili9325_color_t	ili9325_get_pixel (uint32_t ul_x, uint32_t ul_y)
	Get a pixel from LCD. More...
uint32_t	ili9325_init (struct ili9325_opt_t *p_opt)
	Initialize the ILI9325 lcd driver. More...
static uint16_t	ili9325_lcd_get_16 (void)
	Read 16 bit data. More...
ili9325_color_t	ili9325_read_gram (void)
	Read a single color from the graphical memory. More...
static uint32_t	ili9325_read_ram (void)
	Read data to LCD GRAM. More...
static void	ili9325_read_ram_prepare (void)
	Prepare to read GRAM data. More...
static uint16_t	ili9325_read_register (uint8_t uc_reg)
	Read data from LCD Register. More...
void	ili9325_scroll (int32_t ul_lines)
	Scroll up/down for the number of specified lines. More...
static void	ili9325_send_draw_limits (const bool send_end_limits)
	Helper function to send the drawing limits (boundaries) to the display. More...
void	ili9325_set_bottom_right_limit (ili9325_coord_t x, ili9325_coord_t y)
	Set the display bottom right drawing limit. More...
void	ili9325_set_cursor_position (uint16_t us_x, uint16_t us_y)
	Set cursor of LCD screen. More...
void	ili9325_set_display_direction (enum ili9325_display_direction e_dd, enum ili9325_shift_direction e_shd, enum ili9325_scan_direction e_scd)
	Set display direction. More...
void	ili9325_set_foreground_color (ili9325_color_t ul_color)
	Set foreground color. More...
void	ili9325_set_limits (ili9325_coord_t start_x, ili9325_coord_t start_y, ili9325_coord_t end_x, ili9325_coord_t end_y)
	Set the full display drawing limits. More...
void	ili9325_set_orientation (uint8_t flags)
	Sets the orientation of the display data. More...
void	ili9325_set_top_left_limit (ili9325_coord_t x, ili9325_coord_t y)
	Set the display top left drawing limit. More...
void	ili9325_set_window (uint32_t ul_x, uint32_t ul_y, uint32_t ul_width, uint32_t ul_height)
	Set display window. More...
void	ili9325_write_gram (ili9325_color_t color)
	Write the graphical memory with a single color pixel. More...
static void	ili9325_write_ram (ili9325_color_t ul_color)
	Write data to LCD GRAM. More...
static void	ili9325_write_ram_buffer (const ili9325_color_t *p_ul_buf, uint32_t ul_size)
	Write multiple data in buffer to LCD controller. More...
static void	ili9325_write_ram_prepare (void)
	Prepare to write GRAM data. More...
static void	ili9325_write_register (uint8_t uc_reg, uint16_t us_data)
	Write data to LCD Register. More...

Variables
static ili9325_color_t	g_ul_pixel_cache [LCD_DATA_CACHE_SIZE]
struct ili9325_font	gfont = {10, 14}
static volatile ili9325_coord_t	limit_end_x
static volatile ili9325_coord_t	limit_end_y
static volatile ili9325_coord_t	limit_start_x
static volatile ili9325_coord_t	limit_start_y
const uint8_t	p_uc_charset10x14 []
	Character set table for font 10x14 Coding format: Char height is 14 bits, which is coded using 2 bytes per column (2 unused bits). More...

#define LCD_DATA_CACHE_SIZE   ILI9325_LCD_WIDTH

Referenced by ili9325_draw_filled_rectangle(), and ili9325_set_foreground_color().

static void ili9325_check_box_coordinates ( uint32_t *  p_ul_x1, uint32_t *  p_ul_y1, uint32_t *  p_ul_x2, uint32_t *  p_ul_y2  )

static

Check box coordinates.

Parameters

p_ul_x1	X coordinate of upper-left corner on LCD.
p_ul_y1	Y coordinate of upper-left corner on LCD.
p_ul_x2	X coordinate of lower-right corner on LCD.
p_ul_y2	Y coordinate of lower-right corner on LCD.

References ILI9325_LCD_HEIGHT, and ILI9325_LCD_WIDTH.

Referenced by ili9325_draw_filled_rectangle(), ili9325_draw_pixmap(), and ili9325_draw_rectangle().

void ili9325_copy_pixels_from_screen	(	ili9325_color_t *	pixels,
		uint32_t	count
	)

Copy pixels from the screen to a pixel buffer.

Use this function to copy pixels from the display to an internal SRAM buffer.

Limits have to be set prior to calling this function, e.g.:

ili9325_set_top_left_limit(0, 0);
ili9325_set_bottom_right_limit(320, 240);
...

Parameters

pixels	Pointer to the pixel buffer to read to
count	Number of pixels to read

References UNUSED.

void ili9325_copy_pixels_to_screen	(	const ili9325_color_t *	pixels,
		uint32_t	count
	)

Copy pixels from SRAM to the screen.

Used to copy a large quantitative of data to the screen in one go.

Limits have to be set prior to calling this function, e.g.:

ili9325_set_top_left_limit(0, 0);
ili9325_set_bottom_right_limit(320, 240);
...

Parameters

pixels	Pointer to the pixel data
count	Number of pixels to copy to the screen

References Assert, and ILI9325_GRAM_DATA_REG.

void ili9325_copy_raw_pixel_24bits_to_screen	(	const uint8_t *	raw_pixels,
		uint32_t	count
	)

Copy pixels from SRAM to the screen.

Used to copy a large quantitative of data to the screen in one go.

Limits have to be set prior to calling this function, e.g.:

ili9325_set_top_left_limit(0, 0);
ili9325_set_bottom_right_limit(320, 240);
...

Parameters

pixels	Pointer to the pixel data
count	Number of pixels to copy to the screen

References Assert, and ILI9325_GRAM_DATA_REG.

static void ili9325_delay ( uint32_t  ul_ms )

static

Delay function.

Referenced by ili9325_init().

void ili9325_disable_scroll

(

void

)

Disable the scrolling feature.

References ILI9325_BASE_IMG_DISP_CTRL, ILI9325_BASE_IMG_DISP_CTRL_REV, and ili9325_write_register().

void ili9325_display_off

(

void

)

Turn off the LCD.

References ILI9325_DISP_CTRL1, and ili9325_write_register().

void ili9325_display_on

(

void

)

Turn on the LCD.

References ILI9325_DISP_CTRL1, ILI9325_DISP_CTRL1_BASEE, ILI9325_DISP_CTRL1_D, ILI9325_DISP_CTRL1_DTE, ILI9325_DISP_CTRL1_GON, and ili9325_write_register().

Referenced by _display_init(), display_init(), gfx_ili9325_init(), main(), and run_test_control_setting().

static void ili9325_draw_char ( uint32_t  ul_x, uint32_t  ul_y, uint8_t  uc_c  )

static

Draw an ASCII character on LCD.

Parameters

ul_x	X coordinate of character upper-left corner.
ul_y	Y coordinate of character upper-left corner.
uc_c	character to print.

References ili9325_draw_pixel().

Referenced by ili9325_draw_string().

uint32_t ili9325_draw_circle	(	uint32_t	ul_x,
		uint32_t	ul_y,
		uint32_t	ul_r
	)

Draw a circle on LCD.

Parameters

ul_x	X coordinate of circle center.
ul_y	Y coordinate of circle center.
ul_r	circle radius.

Returns

0 if succeeds, otherwise fails.

References ili9325_draw_pixel().

Referenced by main().

uint32_t ili9325_draw_filled_circle	(	uint32_t	ul_x,
		uint32_t	ul_y,
		uint32_t	ul_r
	)

Draw a filled circle on LCD.

Parameters

ul_x	X coordinate of circle center.
ul_y	Y coordinate of circle center.
ul_r	circle radius.

Returns

0 if succeeds, otherwise fails.

References ili9325_draw_filled_rectangle().

void ili9325_draw_filled_rectangle	(	uint32_t	ul_x1,
		uint32_t	ul_y1,
		uint32_t	ul_x2,
		uint32_t	ul_y2
	)

Draw a filled rectangle on LCD.

Parameters

ul_x1	X coordinate of upper-left corner on LCD.
ul_y1	Y coordinate of upper-left corner on LCD.
ul_x2	X coordinate of lower-right corner on LCD.
ul_y2	Y coordinate of lower-right corner on LCD.

References ili9325_check_box_coordinates(), ILI9325_LCD_HEIGHT, ILI9325_LCD_WIDTH, ili9325_set_cursor_position(), ili9325_set_window(), ili9325_write_ram_buffer(), ili9325_write_ram_prepare(), and LCD_DATA_CACHE_SIZE.

Referenced by ili9325_draw_filled_circle(), ili9325_draw_line(), ili9325_draw_rectangle(), main(), and run_test_init().

void ili9325_draw_line	(	uint32_t	ul_x1,
		uint32_t	ul_y1,
		uint32_t	ul_x2,
		uint32_t	ul_y2
	)

Draw a line on LCD.

Parameters

ul_x1	X coordinate of line start.
ul_y1	Y coordinate of line start.
ul_x2	X coordinate of line end.
ul_y2	Y coordinate of line end.

References ili9325_draw_filled_rectangle(), and ili9325_draw_line_bresenham().

Referenced by main().

static void ili9325_draw_line_bresenham ( uint32_t  ul_x1, uint32_t  ul_y1, uint32_t  ul_x2, uint32_t  ul_y2  )

static

Draw a line on LCD, which is not horizontal or vertical.

Parameters

ul_x1	X coordinate of line start.
ul_y1	Y coordinate of line start.
ul_x2	X coordinate of line end.
ul_y2	Y coordinate of line endl.

References ili9325_draw_pixel().

Referenced by ili9325_draw_line().

uint32_t ili9325_draw_pixel	(	uint32_t	ul_x,
		uint32_t	ul_y
	)

Draw a pixel on LCD.

Parameters

ul_x	X coordinate of pixel.
ul_y	Y coordinate of pixel.

Returns

0 if succeeds, otherwise fails.

References ILI9325_LCD_HEIGHT, ILI9325_LCD_WIDTH, ili9325_set_cursor_position(), ili9325_write_ram(), and ili9325_write_ram_prepare().

Referenced by ili9325_draw_char(), ili9325_draw_circle(), ili9325_draw_line_bresenham(), and run_test_data_read_write().

void ili9325_draw_pixmap	(	uint32_t	ul_x,
		uint32_t	ul_y,
		uint32_t	ul_width,
		uint32_t	ul_height,
		const ili9325_color_t *	p_ul_pixmap
	)

Draw a pixmap on LCD.

Parameters

ul_x	X coordinate of upper-left corner on LCD.
ul_y	Y coordinate of upper-left corner on LCD.
ul_width	width of the picture.
ul_height	height of the picture.
p_ul_pixmap	pixmap of the image.

References ili9325_check_box_coordinates(), ILI9325_LCD_HEIGHT, ILI9325_LCD_WIDTH, ili9325_set_cursor_position(), ili9325_set_window(), ili9325_write_ram_buffer(), and ili9325_write_ram_prepare().

void ili9325_draw_prepare	(	uint32_t	ul_x,
		uint32_t	ul_y,
		uint32_t	ul_width,
		uint32_t	ul_height
	)

Prepare LCD to draw.

Parameters

ul_x	Horizontal address start position
ul_y	Vertical address start position
ul_width	The width of the window.
ul_height	The height of the window.

References ili9325_set_cursor_position(), ili9325_set_window(), and ili9325_write_ram_prepare().

Referenced by draw_frame_yuv_color_int().

void ili9325_draw_rectangle	(	uint32_t	ul_x1,
		uint32_t	ul_y1,
		uint32_t	ul_x2,
		uint32_t	ul_y2
	)

Draw a rectangle on LCD.

Parameters

ul_x1	X coordinate of upper-left corner on LCD.
ul_y1	Y coordinate of upper-left corner on LCD.
ul_x2	X coordinate of lower-right corner on LCD.
ul_y2	Y coordinate of lower-right corner on LCD.

References ili9325_check_box_coordinates(), and ili9325_draw_filled_rectangle().

void ili9325_draw_string	(	uint32_t	ul_x,
		uint32_t	ul_y,
		const uint8_t *	p_str
	)

Draw a string on LCD.

Parameters

ul_x	X coordinate of string top-left corner.
ul_y	Y coordinate of string top-left corner.
p_str	String to display.

References ili9325_font::height, ili9325_draw_char(), and ili9325_font::width.

Referenced by main().

void ili9325_duplicate_pixel	(	const ili9325_color_t	color,
		uint32_t	count
	)

Set a given number of pixels to the same color.

Use this function to write a certain number of pixels to the same color within a set limit.

Limits have to be set prior to calling this function, e.g.:

ili9325_set_top_left_limit(0, 0);
ili9325_set_bottom_right_limit(320, 240);
...

Parameters

color	The color to write to the display
count	The number of pixels to write with this color

References Assert, and ILI9325_GRAM_DATA_REG.

void ili9325_enable_scroll

(

void

)

Enable the scrolling feature.

References ILI9325_BASE_IMG_DISP_CTRL, ILI9325_BASE_IMG_DISP_CTRL_REV, ILI9325_BASE_IMG_DISP_CTRL_VLE, and ili9325_write_register().

void ili9325_fill

(

ili9325_color_t

ul_color

)

Fill the LCD buffer with the specified color.

Parameters

ul_color

fill color.

References ILI9325_LCD_HEIGHT, ILI9325_LCD_WIDTH, ili9325_set_cursor_position(), ili9325_write_ram(), and ili9325_write_ram_prepare().

Referenced by main().

ili9325_color_t ili9325_get_pixel	(	uint32_t	ul_x,
		uint32_t	ul_y
	)

Get a pixel from LCD.

Parameters

ul_x	X coordinate of pixel.
ul_y	Y coordinate of pixel.

Returns

the pixel color.

References Assert, ILI9325_LCD_HEIGHT, ILI9325_LCD_WIDTH, ili9325_read_ram(), ili9325_read_ram_prepare(), and ili9325_set_cursor_position().

Referenced by run_test_data_read_write().

uint32_t ili9325_init

(

struct ili9325_opt_t *

p_opt

)

Initialize the ILI9325 lcd driver.

Note

Make sure below works have been done before calling ili9325_init()

1. ILI9325 related Pins have been initialized correctly.
   
2. SMC has been configured correctly for access ILI9325 (8-bit system interface for now).
   

Parameters

p_opt

pointer to ILI9325 option structure.

Returns

0 if initialization succeeds, otherwise fails.

References ili9325_opt_t::foreground_color, ILI9325_BASE_IMG_DISP_CTRL, ILI9325_BASE_IMG_DISP_CTRL_REV, ili9325_delay(), ILI9325_DEVICE_CODE, ILI9325_DEVICE_CODE_REG, ILI9325_DISP_CTRL1, ILI9325_DISP_CTRL1_D, ILI9325_DISP_CTRL1_DTE, ILI9325_DISP_CTRL1_GON, ILI9325_DISP_CTRL2, ILI9325_DISP_CTRL2_BP, ILI9325_DISP_CTRL2_FP, ILI9325_DISP_CTRL3, ILI9325_DISP_CTRL4, ILI9325_DRIVER_OUTPUT_CTRL1, ILI9325_DRIVER_OUTPUT_CTRL1_SS, ILI9325_DRIVER_OUTPUT_CTRL2, ILI9325_DRIVER_OUTPUT_CTRL2_GS, ILI9325_DRIVER_OUTPUT_CTRL2_NL, ILI9325_ENTRY_MODE, ILI9325_ENTRY_MODE_BGR, ILI9325_ENTRY_MODE_DFM, ILI9325_ENTRY_MODE_ID, ILI9325_ENTRY_MODE_TRI, ILI9325_FRAME_MAKER_POS, ILI9325_FRAME_RATE_AND_COLOR_CTRL, ILI9325_FRAME_RATE_AND_COLOR_CTRL_FRS, ILI9325_GAMMA_CTRL1, ILI9325_GAMMA_CTRL10, ILI9325_GAMMA_CTRL10_VRN0, ILI9325_GAMMA_CTRL10_VRN1, ILI9325_GAMMA_CTRL2, ILI9325_GAMMA_CTRL2_KP2, ILI9325_GAMMA_CTRL2_KP3, ILI9325_GAMMA_CTRL3, ILI9325_GAMMA_CTRL3_KP4, ILI9325_GAMMA_CTRL3_KP5, ILI9325_GAMMA_CTRL4, ILI9325_GAMMA_CTRL4_RP0, ILI9325_GAMMA_CTRL4_RP1, ILI9325_GAMMA_CTRL5, ILI9325_GAMMA_CTRL5_VRP0, ILI9325_GAMMA_CTRL5_VRP1, ILI9325_GAMMA_CTRL6, ILI9325_GAMMA_CTRL6_KN0, ILI9325_GAMMA_CTRL6_KN1, ILI9325_GAMMA_CTRL7, ILI9325_GAMMA_CTRL7_KN2, ILI9325_GAMMA_CTRL7_KN3, ILI9325_GAMMA_CTRL8, ILI9325_GAMMA_CTRL8_KN4, ILI9325_GAMMA_CTRL8_KN5, ILI9325_GAMMA_CTRL9, ILI9325_GAMMA_CTRL9_RN0, ILI9325_GAMMA_CTRL9_RN1, ILI9325_LCD_DRIVING_CTRL, ILI9325_LCD_DRIVING_CTRL_BC0, ILI9325_LCD_DRIVING_CTRL_BIT10, ILI9325_LCD_DRIVING_CTRL_EOR, ILI9325_PANEL_INTERFACE_CTRL1, ILI9325_PANEL_INTERFACE_CTRL1_RTNI, ILI9325_PANEL_INTERFACE_CTRL2, ILI9325_PANEL_INTERFACE_CTRL2_NOWI, ILI9325_PANEL_INTERFACE_CTRL4, ILI9325_PANEL_INTERFACE_CTRL4_DIVE, ILI9325_PANEL_INTERFACE_CTRL4_RTNE, ILI9325_PARTIAL_IMG1_AREA_END_LINE, ILI9325_PARTIAL_IMG1_AREA_START_LINE, ILI9325_PARTIAL_IMG1_DISP_POS, ILI9325_PARTIAL_IMG2_AREA_END_LINE, ILI9325_PARTIAL_IMG2_AREA_START_LINE, ILI9325_PARTIAL_IMG2_DISP_POS, ILI9325_POWER_CTRL1, ILI9325_POWER_CTRL1_AP, ILI9325_POWER_CTRL1_APE, ILI9325_POWER_CTRL1_BT, ILI9325_POWER_CTRL1_SAP, ILI9325_POWER_CTRL2, ILI9325_POWER_CTRL2_DC0, ILI9325_POWER_CTRL2_DC1, ILI9325_POWER_CTRL2_VC, ILI9325_POWER_CTRL3, ILI9325_POWER_CTRL3_PON, ILI9325_POWER_CTRL3_VRH, ILI9325_POWER_CTRL4, ILI9325_POWER_CTRL4_VDV, ILI9325_POWER_CTRL7, ILI9325_POWER_CTRL7_VCM, ili9325_read_register(), ILI9325_RESIZE_CTRL, ILI9325_RGB_DISP_INTERFACE_CTRL1, ILI9325_RGB_DISP_INTERFACE_CTRL2, ili9325_set_cursor_position(), ili9325_set_foreground_color(), ili9325_set_window(), ILI9325_START_OSC_CTRL, ILI9325_START_OSC_CTRL_EN, ILI9325_VERTICAL_SCROLL_CTRL, ili9325_write_register(), ili9325_opt_t::ul_height, and ili9325_opt_t::ul_width.

Referenced by _display_init(), display_init(), gfx_ili9325_init(), main(), and run_test_init().

static uint16_t ili9325_lcd_get_16 ( void  )

static

Read 16 bit data.

References us_value.

Referenced by ili9325_read_register().

ili9325_color_t ili9325_read_gram

(

void

)

Read a single color from the graphical memory.

Use this function to read a color from the graphical memory of the controller.

Limits have to be set prior to calling this function, e.g.:

ili9325_set_top_left_limit(0, 0);
ili9325_set_bottom_right_limit(320, 240);
...

Return values

ili9325_color_t

The read color pixel

References ILI9325_GRAM_DATA_REG.

Referenced by gfx_ili9325_get_pixel().

static uint32_t ili9325_read_ram ( void  )

static

Read data to LCD GRAM.

Note

Because pixel data LCD GRAM is 18-bits, so convertion to RGB 24-bits will cause low color bit lose.

Returns

color 24-bits RGB color.

Referenced by ili9325_get_pixel().

static void ili9325_read_ram_prepare ( void  )

static

Prepare to read GRAM data.

References ILI9325_GRAM_DATA_REG.

Referenced by ili9325_get_pixel().

static uint16_t ili9325_read_register ( uint8_t  uc_reg )

static

Read data from LCD Register.

Parameters

uc_reg

register address.

Returns

register value.

References ili9325_lcd_get_16().

Referenced by ili9325_init().

void ili9325_scroll

(

int32_t

ul_lines

)

Scroll up/down for the number of specified lines.

Parameters

ul_lines

number of lines to scroll.

References ILI9325_VERTICAL_SCROLL_CTRL, and ili9325_write_register().

static void ili9325_send_draw_limits ( const bool  send_end_limits )

inlinestatic

Helper function to send the drawing limits (boundaries) to the display.

This function is used to send the currently set upper-left and lower-right drawing limits to the display, as set through the various limit functions.

Parameters

send_end_limits

True to also send the lower-right drawing limits

References ILI9325_HORIZONTAL_ADDR_END, ILI9325_HORIZONTAL_ADDR_START, ILI9325_HORIZONTAL_GRAM_ADDR_SET, ILI9325_VERTICAL_ADDR_END, ILI9325_VERTICAL_ADDR_START, ILI9325_VERTICAL_GRAM_ADDR_SET, and ili9325_write_register().

Referenced by ili9325_set_bottom_right_limit(), ili9325_set_limits(), and ili9325_set_top_left_limit().

void ili9325_set_bottom_right_limit	(	ili9325_coord_t	x,
		ili9325_coord_t	y
	)

Set the display bottom right drawing limit.

Use this function to set the bottom right corner of the drawing limit box.

Parameters

x	The x coordinate of the bottom right corner
y	The y coordinate of the bottom right corner

References ili9325_send_draw_limits().

void ili9325_set_cursor_position	(	uint16_t	us_x,
		uint16_t	us_y
	)

Set cursor of LCD screen.

Parameters

us_x	X coordinate of upper-left corner on LCD.
us_y	Y coordinate of upper-left corner on LCD.

References ILI9325_HORIZONTAL_GRAM_ADDR_SET, ILI9325_VERTICAL_GRAM_ADDR_SET, and ili9325_write_register().

Referenced by ili9325_draw_filled_rectangle(), ili9325_draw_pixel(), ili9325_draw_pixmap(), ili9325_draw_prepare(), ili9325_fill(), ili9325_get_pixel(), and ili9325_init().

void ili9325_set_display_direction	(	enum ili9325_display_direction	e_dd,
		enum ili9325_shift_direction	e_shd,
		enum ili9325_scan_direction	e_scd
	)

Set display direction.

Parameters

dd	0: horizontal direction, 1: vertical direction
shd	horizontal increase(1) or decrease(0)
scd	vertical increase(1) or decrease(0)

References H_INCREASE, ILI9325_DRIVER_OUTPUT_CTRL1, ILI9325_DRIVER_OUTPUT_CTRL1_SS, ILI9325_DRIVER_OUTPUT_CTRL2, ILI9325_DRIVER_OUTPUT_CTRL2_GS, ILI9325_ENTRY_MODE, ILI9325_ENTRY_MODE_AM, ILI9325_ENTRY_MODE_DFM, ILI9325_ENTRY_MODE_HWM, ILI9325_ENTRY_MODE_ID, ILI9325_ENTRY_MODE_ORG, ILI9325_ENTRY_MODE_TRI, ili9325_write_register(), LANDSCAPE, and V_INCREASE.

void ili9325_set_foreground_color

(

ili9325_color_t

ul_color

)

Set foreground color.

Parameters

ul_color

foreground color.

References LCD_DATA_CACHE_SIZE.

Referenced by ili9325_init(), main(), run_test_data_read_write(), and run_test_init().

void ili9325_set_limits	(	ili9325_coord_t	start_x,
		ili9325_coord_t	start_y,
		ili9325_coord_t	end_x,
		ili9325_coord_t	end_y
	)

Set the full display drawing limits.

Use this function to set the full drawing limit box.

Parameters

start_x	The x coordinate of the top left corner
start_y	The y coordinate of the top left corner
end_x	The x coordinate of the bottom right corner
end_y	The y coordinate of the bottom right corner

References ili9325_send_draw_limits().

void ili9325_set_orientation

(

uint8_t

flags

)

Sets the orientation of the display data.

Configures the display for a given orientation, including mirroring and/or screen rotation.

Parameters

flags

Orientation flags to use, see ILI9325_FLIP_X, ILI9325_FLIP_Y and ILI9325_SWITCH_XY.

References ILI9325_ENTRY_MODE, ILI9325_ENTRY_MODE_AM, ILI9325_ENTRY_MODE_BGR, ILI9325_ENTRY_MODE_DFM, ILI9325_ENTRY_MODE_ID, ILI9325_ENTRY_MODE_TRI, ILI9325_FLIP_X, ILI9325_FLIP_Y, ILI9325_SWITCH_XY, and ili9325_write_register().

Referenced by gfx_ili9325_set_orientation().

void ili9325_set_top_left_limit	(	ili9325_coord_t	x,
		ili9325_coord_t	y
	)

Set the display top left drawing limit.

Use this function to set the top left limit of the drawing limit box.

Parameters

x	The x coordinate of the top left corner
y	The y coordinate of the top left corner

References ili9325_send_draw_limits().

void ili9325_set_window	(	uint32_t	ul_x,
		uint32_t	ul_y,
		uint32_t	ul_width,
		uint32_t	ul_height
	)

Set display window.

Parameters

ul_x	Horizontal address start position
ul_y	Vertical address start position
ul_width	The width of the window.
ul_height	The height of the window.

References Assert, ILI9325_HORIZONTAL_ADDR_END, ILI9325_HORIZONTAL_ADDR_START, ILI9325_VERTICAL_ADDR_END, ILI9325_VERTICAL_ADDR_START, and ili9325_write_register().

Referenced by ili9325_draw_filled_rectangle(), ili9325_draw_pixmap(), ili9325_draw_prepare(), and ili9325_init().

void ili9325_write_gram

(

ili9325_color_t

color

)

Write the graphical memory with a single color pixel.

Use this function to write a single color pixel to the controller memory.

Limits have to be set prior to calling this function, e.g.:

ili9325_set_top_left_limit(0, 0);
ili9325_set_bottom_right_limit(320, 240);
...

Parameters

color

The color pixel to write to the screen

References Assert, and ILI9325_GRAM_DATA_REG.

Referenced by gfx_ili9325_draw_line_pixel(), and gfx_ili9325_draw_pixel().

static void ili9325_write_ram ( ili9325_color_t  ul_color )

static

Write data to LCD GRAM.

Parameters

ul_color

24-bits RGB color.

Referenced by ili9325_draw_pixel(), ili9325_fill(), and ili9325_write_ram_buffer().

static void ili9325_write_ram_buffer ( const ili9325_color_t *  p_ul_buf, uint32_t  ul_size  )

static

Write multiple data in buffer to LCD controller.

Parameters

p_ul_buf	data buffer.
ul_size	size in pixels.

References ili9325_write_ram().

Referenced by ili9325_draw_filled_rectangle(), and ili9325_draw_pixmap().

static void ili9325_write_ram_prepare ( void  )

static

Prepare to write GRAM data.

References ILI9325_GRAM_DATA_REG.

Referenced by ili9325_draw_filled_rectangle(), ili9325_draw_pixel(), ili9325_draw_pixmap(), ili9325_draw_prepare(), and ili9325_fill().

static void ili9325_write_register ( uint8_t  uc_reg, uint16_t  us_data  )

static

Write data to LCD Register.

Parameters

uc_reg	register address.
us_data	data to be written.

Referenced by ili9325_disable_scroll(), ili9325_display_off(), ili9325_display_on(), ili9325_enable_scroll(), ili9325_init(), ili9325_scroll(), ili9325_send_draw_limits(), ili9325_set_cursor_position(), ili9325_set_display_direction(), ili9325_set_orientation(), and ili9325_set_window().

ili9325_color_t g_ul_pixel_cache[LCD_DATA_CACHE_SIZE]

static

struct ili9325_font gfont = {10, 14}

volatile ili9325_coord_t limit_end_x

static

volatile ili9325_coord_t limit_end_y

static

volatile ili9325_coord_t limit_start_x

static

volatile ili9325_coord_t limit_start_y

static

const uint8_t p_uc_charset10x14[]

Character set table for font 10x14 Coding format: Char height is 14 bits, which is coded using 2 bytes per column (2 unused bits).

Char width is 10 bits.

Referenced by ili93xx_draw_char().