LCD

CARME-M4 Graphic controller. More...

Collaboration diagram for LCD:

Modules
	CTRL
	CARME-M4 LCD Low level driver.

Files
file	lcd_conf.h
	Simple graphic library configuration.
file	ssd1963.h
	Driver for the SSD1963 Graphic-Controller.
file	ssd1963.c
	Driver for the SSD1963 Graphic-Controller.

Macros
#define	TFT320x240
#define	TFT_FPS   50ULL
#define	TFT_WIDTH   320ULL
#define	TFT_HSYNC_BACK_PORCH   40ULL
#define	TFT_HSYNC_FRONT_PORCH   20ULL
#define	TFT_HSYNC_PULSE   28ULL
#define	TFT_HEIGHT   240ULL
#define	TFT_VSYNC_BACK_PORCH   17ULL
#define	TFT_VSYNC_FRONT_PORCH   4ULL
#define	TFT_VSYNC_PULSE   3ULL
#define	TFT_HSYNC_PERIOD   (TFT_HSYNC_PULSE + TFT_HSYNC_BACK_PORCH + TFT_WIDTH + TFT_HSYNC_FRONT_PORCH)
#define	TFT_VSYNC_PERIOD   (TFT_VSYNC_PULSE + TFT_VSYNC_BACK_PORCH + TFT_HEIGHT + TFT_VSYNC_FRONT_PORCH)
#define	TFT_PCLK   (TFT_HSYNC_PERIOD * TFT_VSYNC_PERIOD * TFT_FPS)
#define	LCD_FPR   ((TFT_PCLK * 1048576)/100000000)
#define	WR_HIGH_BYTE(x)   (x >> 8)
#define	WR_LOW_BYTE(x)   (x & 0xFF)
#define	USE_16BIT_PMP
#define	LCD_HOR_RESOLUTION   320ULL
#define	LCD_VER_RESOLUTION   240ULL
#define	LCD_HOR_PULSE_WIDTH   64ULL /* 64 */
#define	LCD_HOR_BACK_PORCH   96ULL /* 96 */
#define	LCD_HOR_FRONT_PORCH   48ULL /* 48 */
#define	LCD_VER_PULSE_WIDTH   2ULL /* 2 */
#define	LCD_VER_BACK_PORCH   34ULL /* 34 */
#define	LCD_VER_FRONT_PORCH   11ULL /* 11 */
#define	HT   (LCD_HOR_RESOLUTION + LCD_HOR_PULSE_WIDTH + LCD_HOR_BACK_PORCH + LCD_HOR_FRONT_PORCH)
#define	HPS   (LCD_HOR_PULSE_WIDTH + LCD_HOR_BACK_PORCH)
#define	VT   (LCD_VER_PULSE_WIDTH + LCD_VER_BACK_PORCH + LCD_VER_FRONT_PORCH + LCD_VER_RESOLUTION)
#define	VSP   (LCD_VER_PULSE_WIDTH + LCD_VER_BACK_PORCH)
#define	X_BYTES   40
#define	Y_BYTES   30
#define	SCRN_LEFT   0
#define	SCRN_TOP   0
#define	SCRN_RIGHT   LCD_HOR_RESOLUTION-1
#define	SCRN_BOTTOM   LCD_VER_RESOLUTION-1
#define	CCW   -1
#define	CW   1
#define	DOTS_PER_CM_X   64
#define	DOTS_PER_CM_Y   60
#define	INCR   1
#define	DECR   -1
#define	PREDX   1
#define	PREDY   0
#define	COEFF_PIXELS_MM   1.5

Functions
void	SSD1963_Init (void)
	Init the SSD1963 LCD-Controller and clear the display. More...
void	SSD1963_WritePixel (uint16_t x, uint16_t y, uint16_t color)
	Puts pixel. More...
uint16_t	SSD1963_ReadPixel (uint16_t x, uint16_t y)
	Reads pixel. More...
void	SSD1963_SetArea (uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
	defines start/end columns and start/end rows for memory access from host to SSD1963. More...
void	SSD1963_FillArea (uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
	Fill area of specified color. More...
void	SSD1963_WriteArea (uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t *pData)
	Write a array of data to the display. More...
void	SSD1963_SetTearingCfg (uint8_t state, uint8_t mode)
	This function enable/disable tearing effect. More...
void	SSD1963_GetDeviceDescriptorBlock (uint16_t *ddb)
	Get SSD1963 Device Descriptor Block. More...
void	SSD1963_WriteCommand (uint16_t cmd)
void	SSD1963_WriteData (uint16_t data)
uint16_t	SSD1963_ReadData (void)
static void	SSD1963_EnterSleepMode (void)
	SSD1963 enters sleep mode. Host must wait 5mS after sending before sending next command.
static void	SSD1963_ExitSleepMode (void)
	SSD1963 exit sleep mode.
static void	SSD1963_DisplayOff (void)
	SSD1963 changes the display state to OFF state.
static void	SSD1963_DisplayOn (void)
	SSD1963 changes the display state to ON state.
static void	SSD1963_Delay (uint32_t nCount)
	Inserts a delay time. More...

Variables
static uint16_t	deviceDescriptorBlock [3]

Detailed Description

CARME-M4 Graphic controller.

Function Documentation

static void SSD1963_Delay ( uint32_t  nCount )

static

Inserts a delay time.

Parameters

[in]

nCount

specifies the delay time length.

Returns

None

Definition at line 100 of file ssd1963.c.

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void SSD1963_FillArea	(	uint16_t	x1,
		uint16_t	y1,
		uint16_t	x2,
		uint16_t	y2,
		uint16_t	color
	)

Fill area of specified color.

Parameters

[in]	x1	start column from the left.
[in]	y1	start row from the top.
[in]	x2	end column from the left.
[in]	y2	end row from the top.
[in]	color	16-Bit color value in the RGB 5-6-5 format.

Returns

None

Definition at line 276 of file ssd1963.c.

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void SSD1963_GetDeviceDescriptorBlock

(

uint16_t *

ddb

)

Get SSD1963 Device Descriptor Block.

Parameters

[out]

ddb

Device descriptor block information, stored in 3 uint16_t variables.

Returns

None

Definition at line 346 of file ssd1963.c.

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void SSD1963_Init

(

void

)

Init the SSD1963 LCD-Controller and clear the display.

Returns

None

Set pll parameters Target system clock : 110MHz Crystal frequency : 10MHz VCO range : 250MHz - 800MHz Multiplier : 33 (N = 0x20) Divider : 3 (M = 0x02)

Set LSHIFT freq, i.e. the DCLK with PLL freq 120 MHz set previously Typical DCLK for TFT-320x240 is 6.5MHz in 18 bit format 6.5 MHz = 120 MHz*(LCDC_FPR+1)/2^20

Definition at line 115 of file ssd1963.c.

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uint16_t SSD1963_ReadPixel	(	uint16_t	x,
		uint16_t	y
	)

Reads pixel.

Parameters

[in]	x	column from the left.
[in]	y	row from the top.

Returns

16-Bit color value in the RGB 5-6-5 format.

Definition at line 231 of file ssd1963.c.

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void SSD1963_SetArea	(	uint16_t	x1,
		uint16_t	y1,
		uint16_t	x2,
		uint16_t	y2
	)

defines start/end columns and start/end rows for memory access from host to SSD1963.

Parameters

[in]	x1	start column from the left.
[in]	y1	start row from the top.
[in]	x2	end column from the left.
[in]	y2	end row from the top.

Returns

None

Definition at line 250 of file ssd1963.c.

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void SSD1963_SetTearingCfg	(	uint8_t	state,
		uint8_t	mode
	)

This function enable/disable tearing effect.

Parameters

[in]	state	1: to enable 0: to disable
[in]	mode	0: the tearing effect output line consists of V-blanking information only. 1: the tearing effect output line consists of both V-blanking and H-blanking info.

Returns

None

Definition at line 326 of file ssd1963.c.

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void SSD1963_WriteArea	(	uint16_t	x1,
		uint16_t	y1,
		uint16_t	x2,
		uint16_t	y2,
		uint16_t *	pData
	)

Write a array of data to the display.

Parameters

[in]	x1	start column from the left.
[in]	y1	start row from the top.
[in]	x2	end column from the left.
[in]	y2	end row from the top.
[in]	pData	Pointer to the array of pixels in format of 16-Bit color value in the RGB 5-6-5 format.

Returns

None

Definition at line 301 of file ssd1963.c.

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void SSD1963_WritePixel	(	uint16_t	x,
		uint16_t	y,
		uint16_t	color
	)

Puts pixel.

Parameters

[in]	x	column from the left.
[in]	y	row from the top.
[in]	color	16-Bit color value in the RGB 5-6-5 format.

Returns

None

Definition at line 215 of file ssd1963.c.

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