Low-level driver for the ILI9488 LCD controller.

This driver provides access to the main features of the ILI9488 controller.

Modules
	Related Project(s)
	In this section you can find all the projects related to the Display - ILI9488 Controller.

Macros
#define	LCD_DATA_CACHE_SIZE ILI9488_LCD_WIDTH

Functions
static void	ili9488_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	ili9488_copy_pixels_from_screen (uint16_t *pixels, uint32_t count)
	Copy pixels from the screen to a pixel buffer. More...

void	ili9488_copy_pixels_to_screen (const uint16_t *pixels, uint32_t count)
	Copy pixels from SRAM to the screen. More...

void	ili9488_delay (uint32_t ul_ms)
	Delay function. More...

void	ili9488_display_off (void)
	Turn off the LCD. More...

void	ili9488_display_on (void)
	Turn on the LCD. More...

static void	ili9488_draw_char (uint32_t ul_x, uint32_t ul_y, uint8_t uc_c)
	Draw an ASCII character on LCD. More...

uint32_t	ili9488_draw_circle (uint32_t ul_x, uint32_t ul_y, uint32_t ul_r)
	Draw a circle on LCD. More...

uint32_t	ili9488_draw_filled_circle (uint32_t ul_x, uint32_t ul_y, uint32_t ul_r)
	Draw a filled circle on LCD. More...

void	ili9488_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	ili9488_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	ili9488_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	ili9488_draw_pixel (uint32_t ul_x, uint32_t ul_y)
	Draw a pixel on LCD. More...

void	ili9488_draw_pixmap (uint32_t ul_x, uint32_t ul_y, uint32_t ul_width, uint32_t ul_height, const ili9488_color_t *p_ul_pixmap)
	Draw a pixmap on LCD. More...

void	ili9488_draw_prepare (uint32_t ul_x, uint32_t ul_y, uint32_t ul_width, uint32_t ul_height)
	Prepare LCD to draw. More...

void	ili9488_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	ili9488_draw_string (uint32_t ul_x, uint32_t ul_y, const uint8_t *p_str)
	Draw a string on LCD. More...

void	ili9488_duplicate_pixel (const uint16_t color, uint32_t count)
	Set a given number of pixels to the same color. More...

void	ili9488_fill (ili9488_color_t ul_color)
	Fill the LCD buffer with the specified color. More...

ili9488_color_t	ili9488_get_pixel (uint32_t ul_x, uint32_t ul_y)
	Get a pixel from LCD. More...

uint32_t	ili9488_init (struct ili9488_opt_t *p_opt)
	Initialize the ILI9488 lcd driver. More...

static uint32_t	ili9488_read_chipid (void)
	Read chipid. More...

uint16_t	ili9488_read_gram (void)
	Read a single color from the graphical memory. More...

static uint32_t	ili9488_read_ram (void)
	Read data to LCD GRAM. More...

void	ili9488_scroll (uint16_t ul_tfa, uint16_t ul_vsa, uint16_t ul_bfa)
	Scroll up/down for the number of specified lines. More...

void	ili9488_set_bottom_right_limit (ili9488_coord_t x, ili9488_coord_t y)
	Set the display bottom right drawing limit. More...

void	ili9488_set_cursor_position (uint16_t x, uint16_t y)
	Set cursor of LCD screen. More...

void	ili9488_set_display_direction (enum ili9488_display_direction direction)
	ILI9488 configure landscape. More...

void	ili9488_set_foreground_color (uint32_t ul_color)
	Set foreground color. More...

void	ili9488_set_limits (ili9488_coord_t start_x, ili9488_coord_t start_y, ili9488_coord_t end_x, ili9488_coord_t end_y)
	Set the full display drawing limits. More...

void	ili9488_set_orientation (uint8_t flags)
	Sets the orientation of the display data. More...

void	ili9488_set_scroll_address (uint16_t ul_vsp)
	Enable the scrolling feature. More...

void	ili9488_set_top_left_limit (ili9488_coord_t x, ili9488_coord_t y)
	Set the display top left drawing limit. More...

void	ili9488_set_window (uint16_t x, uint16_t y, uint16_t width, uint16_t height)
	ILI9488 configure window. More...

void	ili9488_write_brightness (uint16_t us_value)
	Set display brightness. More...

void	ili9488_write_gram (uint16_t color)
	Write the graphical memory with a single color pixel. More...

static void	ili9488_write_ram (ili9488_color_t ul_color)
	Write data to LCD GRAM. More...

static void	ili9488_write_ram_buffer (const ili9488_color_t *p_ul_buf, uint32_t ul_size)
	Write multiple data in buffer to LCD controller. More...

static void	ili9488_write_ram_prepare (void)
	Prepare to write GRAM data. More...

static void	ili9488_write_register (uint8_t uc_reg, const ili9488_color_t *us_data, uint32_t size)
	Write data to LCD Register. More...

Variables
static ili9488_color_t	g_ul_pixel_cache [LCD_DATA_CACHE_SIZE *LCD_DATA_COLOR_UNIT]

struct ili9488_font	gfont = {10, 14}

static ili9488_coord_t	limit_end_x

static ili9488_coord_t	limit_end_y

static ili9488_coord_t	limit_start_x

static ili9488_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 ILI9488_LCD_WIDTH

Referenced by ili9488_draw_filled_rectangle(), and ili9488_set_foreground_color().

static void ili9488_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 ILI9488_LCD_HEIGHT, and ILI9488_LCD_WIDTH.

Referenced by ili9488_draw_filled_rectangle(), ili9488_draw_pixmap(), and ili9488_draw_rectangle().

void ili9488_copy_pixels_from_screen	(	uint16_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.:

* ili9488_set_top_left_limit(0, 0);
* ili9488_set_bottom_right_limit(320, 240);
* ...
* 

Parameters

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

References ILI9488_CMD_MEMORY_READ, ILI9488_COLOR, ili9488_set_window(), ili9488_write_register(), pio_set(), pio_set_pin_high(), and spi_read_packet().

void ili9488_copy_pixels_to_screen	(	const uint16_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.:

* ili9488_set_top_left_limit(0, 0);
* ili9488_set_bottom_right_limit(320, 240);
* ...
* 

Parameters

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

References ILI9488_CMD_MEMORY_WRITE, ili9488_set_window(), ili9488_write_ram(), ili9488_write_ram_prepare(), ili9488_write_register(), LCD_DATA_COLOR_UNIT, and RGB_16_TO_18BIT.

void ili9488_delay ( uint32_t ul_ms )

Delay function.

Referenced by ili9488_init().

void ili9488_display_off ( void )

Turn off the LCD.

References ILI9488_CMD_DISPLAY_OFF, and ili9488_write_register().

void ili9488_display_on ( void )

Turn on the LCD.

References ILI9488_CMD_DISPLAY_ON, and ili9488_write_register().

Referenced by gfx_ili9488_init(), and ili9488_init().

static void ili9488_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 ili9488_draw_pixel().

Referenced by ili9488_draw_string().

uint32_t ili9488_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 ili9488_draw_pixel().

Referenced by main().

uint32_t ili9488_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 ili9488_draw_filled_rectangle().

void ili9488_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 ili9488_check_box_coordinates(), ILI9488_LCD_HEIGHT, ILI9488_LCD_WIDTH, ili9488_set_window(), ili9488_write_ram_buffer(), ili9488_write_ram_prepare(), LCD_DATA_CACHE_SIZE, and LCD_DATA_COLOR_UNIT.

Referenced by ili9488_draw_filled_circle(), ili9488_draw_line(), ili9488_draw_rectangle(), main(), and refresh_display().

void ili9488_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 ili9488_draw_filled_rectangle(), and ili9488_draw_line_bresenham().

Referenced by main().

static void ili9488_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 ili9488_draw_pixel().

Referenced by ili9488_draw_line().

uint32_t ili9488_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 ILI9488_LCD_HEIGHT, ILI9488_LCD_WIDTH, ili9488_set_cursor_position(), ili9488_write_ram_buffer(), ili9488_write_ram_prepare(), and LCD_DATA_COLOR_UNIT.

Referenced by ili9488_draw_char(), ili9488_draw_circle(), ili9488_draw_line_bresenham(), and ili9488_draw_number().

void ili9488_draw_pixmap	(	uint32_t	ul_x,
		uint32_t	ul_y,
		uint32_t	ul_width,
		uint32_t	ul_height,
		const ili9488_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 ili9488_check_box_coordinates(), ILI9488_CMD_MEMORY_WRITE, ILI9488_LCD_HEIGHT, ILI9488_LCD_WIDTH, ili9488_set_window(), ili9488_write_register(), and LCD_DATA_COLOR_UNIT.

Referenced by main(), and refresh_display().

void ili9488_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 ili9488_set_cursor_position(), ili9488_set_window(), and ili9488_write_ram_prepare().

void ili9488_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 ili9488_check_box_coordinates(), and ili9488_draw_filled_rectangle().

void ili9488_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 ili9488_font::height, ili9488_draw_char(), and ili9488_font::width.

Referenced by main(), refresh_display(), and wifi_connect().

void ili9488_duplicate_pixel	(	const uint16_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.:

* ili9488_set_top_left_limit(0, 0);
* ili9488_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 ili9488_set_window(), ili9488_write_ram(), ili9488_write_ram_prepare(), and RGB_16_TO_18BIT.

void ili9488_fill ( ili9488_color_t ul_color )

Fill the LCD buffer with the specified color.

Parameters

ul_color fill color.

References ILI9488_LCD_HEIGHT, ILI9488_LCD_WIDTH, ili9488_set_cursor_position(), ili9488_write_ram(), and ili9488_write_ram_prepare().

ili9488_color_t ili9488_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, ILI9488_LCD_HEIGHT, ILI9488_LCD_WIDTH, ili9488_read_ram(), and ili9488_set_cursor_position().

uint32_t ili9488_init ( struct ili9488_opt_t * p_opt )

Initialize the ILI9488 lcd driver.

Note

Make sure below works have been done before calling ili9488_init()

ILI9488 related Pins have been initialized correctly.
SMC has been configured correctly for access ILI9488 (16-bit system interface for now).

Parameters

p_opt pointer to ILI9488 option structure.

Returns: 0 if initialization succeeds, otherwise fails.

read chipid

make it tRGB and reverse the column order

References ili9488_opt_t::foreground_color, spi_device::id, ILI9488_CMD_CABC_CONTROL_9, ILI9488_CMD_COLMOD_PIXEL_FORMAT_SET, ILI9488_CMD_MEMORY_ACCESS_CONTROL, ILI9488_CMD_NORMAL_DISP_MODE_ON, ILI9488_CMD_PARTIAL_MODE_ON, ILI9488_CMD_SLEEP_OUT, ILI9488_CMD_SOFTWARE_RESET, ili9488_delay(), ILI9488_DEVICE_CODE, ili9488_display_on(), ili9488_read_chipid(), ili9488_set_cursor_position(), ili9488_set_display_direction(), ili9488_set_foreground_color(), ili9488_set_window(), ili9488_write_register(), LANDSCAPE, pmc_enable_periph_clk(), smc_set_cycle_timing(), smc_set_mode(), smc_set_pulse_timing(), smc_set_setup_timing(), spi_configure_cs_behavior(), SPI_CS_RISE_NO_TX, spi_enable(), spi_enable_interrupt(), spi_master_init(), spi_master_setup_device(), SPI_MODE_3, spi_select_device(), ili9488_opt_t::ul_height, and ili9488_opt_t::ul_width.

Referenced by gfx_ili9488_init(), and main().

static uint32_t ili9488_read_chipid ( void )

static

Read chipid.

Returns: chipid value.

References ILI9488_CMD_READ_ID4, ILI9488_CMD_SPI_READ_SETTINGS, ili9488_write_register(), pio_set_pin_high(), and spi_read_packet().

Referenced by ili9488_init().

uint16_t ili9488_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.:

* ili9488_set_top_left_limit(0, 0);
* ili9488_set_bottom_right_limit(320, 240);
* ...
* 

Return values

ili9488_color_t The read color pixel

References ili9488_read_ram(), and ili9488_set_cursor_position().

Referenced by gfx_ili9488_get_pixel().

static uint32_t ili9488_read_ram ( void )

static

Read data to LCD GRAM.

Note: Because pixel data LCD GRAM is 18-bits, so convertion to RGB565 16-bits will cause low color bit lose.

Returns: color 16-bits RGB color.

References ILI9488_CMD_MEMORY_READ, ILI9488_COLOR, ili9488_write_register(), pio_set_pin_high(), and spi_read_packet().

Referenced by ili9488_get_pixel(), and ili9488_read_gram().

void ili9488_scroll	(	uint16_t	ul_tfa,
		uint16_t	ul_vsa,
		uint16_t	ul_bfa
	)

Scroll up/down for the number of specified lines.

Parameters

ul_tfa	Top Fixed Area in number of lines from the top of the frame memory.
ul_lines	number of lines to scroll.
ul_bfa	bottom Fixed Area in number of lines from the bottom of the frame memory.

References get_0b_to_8b, get_8b_to_16b, ILI9488_CMD_VERT_SCROLL_DEFINITION, and ili9488_write_register().

void ili9488_set_bottom_right_limit	(	ili9488_coord_t	x,
		ili9488_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

void ili9488_set_cursor_position	(	uint16_t	x,
		uint16_t	y
	)

Set cursor of LCD screen.

Parameters

x	X coordinate of upper-left corner on LCD.
y	Y coordinate of upper-left corner on LCD.

References get_0b_to_8b, get_8b_to_16b, ILI9488_CMD_COLUMN_ADDRESS_SET, ILI9488_CMD_NOP, ILI9488_CMD_PAGE_ADDRESS_SET, and ili9488_write_register().

Referenced by ili9488_draw_pixel(), ili9488_draw_prepare(), ili9488_fill(), ili9488_get_pixel(), ili9488_init(), ili9488_read_gram(), and ili9488_write_gram().

void ili9488_set_display_direction ( enum ili9488_display_direction direction )

ILI9488 configure landscape.

LandscaprMode Landscape Mode.

References ILI9488_CMD_MEMORY_ACCESS_CONTROL, and ili9488_write_register().

Referenced by ili9488_init().

void ili9488_set_foreground_color ( uint32_t ul_color )

Set foreground color.

Parameters

ul_color foreground color.

References LCD_DATA_CACHE_SIZE, and LCD_DATA_COLOR_UNIT.

Referenced by ili9488_init(), main(), refresh_display(), and wifi_connect().

void ili9488_set_limits	(	ili9488_coord_t	start_x,
		ili9488_coord_t	start_y,
		ili9488_coord_t	end_x,
		ili9488_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

void ili9488_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 ILI9488_FLIP_X, ILI9488_FLIP_Y and ILI9488_SWITCH_XY.

References ILI9488_CMD_MEMORY_ACCESS_CONTROL, ILI9488_FLIP_X, ILI9488_FLIP_Y, ILI9488_SWITCH_XY, and ili9488_write_register().

Referenced by gfx_ili9488_set_orientation().

void ili9488_set_scroll_address ( uint16_t ul_vsp )

Enable the scrolling feature.

Parameters

ul_vsp Vertical Scrolling Start Address

References get_0b_to_8b, get_8b_to_16b, ILI9488_CMD_VERT_SCROLL_START_ADDRESS, and ili9488_write_register().

void ili9488_set_top_left_limit	(	ili9488_coord_t	x,
		ili9488_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

void ili9488_set_window	(	uint16_t	x,
		uint16_t	y,
		uint16_t	width,
		uint16_t	height
	)

ILI9488 configure window.

x start position. y start position. width Width of window. height Height of window.

References get_0b_to_8b, get_8b_to_16b, ILI9488_CMD_COLUMN_ADDRESS_SET, ILI9488_CMD_NOP, ILI9488_CMD_PAGE_ADDRESS_SET, and ili9488_write_register().

Referenced by ili9488_copy_pixels_from_screen(), ili9488_copy_pixels_to_screen(), ili9488_draw_filled_rectangle(), ili9488_draw_pixmap(), ili9488_draw_prepare(), ili9488_duplicate_pixel(), and ili9488_init().

void ili9488_write_brightness ( uint16_t us_value )

Set display brightness.

Configures the display for a given brightness value

Parameters

us_value brightness value need to written.

References ILI9488_CMD_WRITE_DISPLAY_BRIGHTNESS, and ili9488_write_register().

void ili9488_write_gram ( uint16_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.:

* ili9488_set_top_left_limit(0, 0);
* ili9488_set_bottom_right_limit(320, 240);
* ...
* 

Parameters

color The color pixel to write to the screen

References ili9488_set_cursor_position(), ili9488_write_ram(), ili9488_write_ram_prepare(), and RGB_16_TO_18BIT.

Referenced by gfx_ili9488_draw_line_pixel(), and gfx_ili9488_draw_pixel().

static void ili9488_write_ram ( ili9488_color_t ul_color )

static

Write data to LCD GRAM.

Parameters

ul_color 16-bits RGB color.

References pio_set_pin_high(), and spi_write().

Referenced by ili9488_copy_pixels_to_screen(), ili9488_duplicate_pixel(), ili9488_fill(), and ili9488_write_gram().

static void ili9488_write_ram_buffer	(	const ili9488_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 pio_set_pin_high(), and spi_write_packet().

Referenced by ili9488_draw_filled_rectangle(), and ili9488_draw_pixel().

static void ili9488_write_ram_prepare ( void )

static

Prepare to write GRAM data.

References ILI9488_CMD_MEMORY_WRITE, pio_set_pin_low(), and spi_write().

Referenced by ili9488_copy_pixels_to_screen(), ili9488_draw_filled_rectangle(), ili9488_draw_pixel(), ili9488_draw_prepare(), ili9488_duplicate_pixel(), ili9488_fill(), and ili9488_write_gram().

static void ili9488_write_register	(	uint8_t	uc_reg,
		const ili9488_color_t *	us_data,
		uint32_t	size
	)

static

Write data to LCD Register.

Parameters

uc_reg	register address.
us_data	data to be written.
size	the number of parameters.

References pio_set_pin_high(), pio_set_pin_low(), spi_write(), and spi_write_packet().

Referenced by ili9488_copy_pixels_from_screen(), ili9488_copy_pixels_to_screen(), ili9488_display_off(), ili9488_display_on(), ili9488_draw_pixmap(), ili9488_init(), ili9488_read_chipid(), ili9488_read_ram(), ili9488_scroll(), ili9488_set_cursor_position(), ili9488_set_display_direction(), ili9488_set_orientation(), ili9488_set_scroll_address(), ili9488_set_window(), and ili9488_write_brightness().

ili9488_color_t g_ul_pixel_cache[LCD_DATA_CACHE_SIZE *LCD_DATA_COLOR_UNIT]

static

struct ili9488_font gfont = {10, 14}

ili9488_coord_t limit_end_x

static

ili9488_coord_t limit_end_y

static

ili9488_coord_t limit_start_x

static

ili9488_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.

Microchip® Advanced Software Framework

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