Initialization and Configuration functions. More...

Collaboration diagram for Initialization and Configuration functions:

Functions
void	LTDC_DeInit (void)
	Deinitializes the LTDC peripheral registers to their default reset values. More...

void	LTDC_Init (LTDC_InitTypeDef *LTDC_InitStruct)
	Initializes the LTDC peripheral according to the specified parameters in the LTDC_InitStruct. More...

void	LTDC_StructInit (LTDC_InitTypeDef *LTDC_InitStruct)
	Fills each LTDC_InitStruct member with its default value. More...

void	LTDC_Cmd (FunctionalState NewState)
	Enables or disables the LTDC Controller. More...

void	LTDC_DitherCmd (FunctionalState NewState)
	Enables or disables Dither. More...

LTDC_RGBTypeDef	LTDC_GetRGBWidth (void)
	Get the dither RGB width. More...

void	LTDC_RGBStructInit (LTDC_RGBTypeDef *LTDC_RGB_InitStruct)
	Fills each LTDC_RGBStruct member with its default value. More...

void	LTDC_LIPConfig (uint32_t LTDC_LIPositionConfig)
	Define the position of the line interrupt . More...

void	LTDC_ReloadConfig (uint32_t LTDC_Reload)
	reload layers registers with new parameters More...

void	LTDC_LayerInit (LTDC_Layer_TypeDef LTDC_Layerx, LTDC_Layer_InitTypeDef LTDC_Layer_InitStruct)
	Initializes the LTDC Layer according to the specified parameters in the LTDC_LayerStruct. More...

void	LTDC_LayerStructInit (LTDC_Layer_InitTypeDef *LTDC_Layer_InitStruct)
	Fills each LTDC_Layer_InitStruct member with its default value. More...

void	LTDC_LayerCmd (LTDC_Layer_TypeDef *LTDC_Layerx, FunctionalState NewState)
	Enables or disables the LTDC_Layer Controller. More...

LTDC_PosTypeDef	LTDC_GetPosStatus (void)
	Get the current position. More...

void	LTDC_PosStructInit (LTDC_PosTypeDef *LTDC_Pos_InitStruct)
	Fills each LTDC_Pos_InitStruct member with its default value. More...

FlagStatus	LTDC_GetCDStatus (uint32_t LTDC_CD)
	Checks whether the specified LTDC's flag is set or not. More...

void	LTDC_ColorKeyingConfig (LTDC_Layer_TypeDef LTDC_Layerx, LTDC_ColorKeying_InitTypeDef LTDC_colorkeying_InitStruct, FunctionalState NewState)
	Set and configure the color keying. More...

void	LTDC_ColorKeyingStructInit (LTDC_ColorKeying_InitTypeDef *LTDC_colorkeying_InitStruct)
	Fills each LTDC_colorkeying_InitStruct member with its default value. More...

void	LTDC_CLUTCmd (LTDC_Layer_TypeDef *LTDC_Layerx, FunctionalState NewState)
	Enables or disables CLUT. More...

void	LTDC_CLUTInit (LTDC_Layer_TypeDef LTDC_Layerx, LTDC_CLUT_InitTypeDef LTDC_CLUT_InitStruct)
	configure the CLUT. More...

void	LTDC_CLUTStructInit (LTDC_CLUT_InitTypeDef *LTDC_CLUT_InitStruct)
	Fills each LTDC_CLUT_InitStruct member with its default value. More...

void	LTDC_LayerPosition (LTDC_Layer_TypeDef *LTDC_Layerx, uint16_t OffsetX, uint16_t OffsetY)
	reconfigure the layer position. More...

void	LTDC_LayerAlpha (LTDC_Layer_TypeDef *LTDC_Layerx, uint8_t ConstantAlpha)
	reconfigure constant alpha. More...

void	LTDC_LayerAddress (LTDC_Layer_TypeDef *LTDC_Layerx, uint32_t Address)
	reconfigure layer address. More...

void	LTDC_LayerSize (LTDC_Layer_TypeDef *LTDC_Layerx, uint32_t Width, uint32_t Height)
	reconfigure layer size. More...

void	LTDC_LayerPixelFormat (LTDC_Layer_TypeDef *LTDC_Layerx, uint32_t PixelFormat)
	reconfigure layer pixel format. More...

Detailed Description

Initialization and Configuration functions.

 ===============================================================================
            ##### Initialization and Configuration functions #####
 ===============================================================================
    [..]  This section provides functions allowing to:
      (+) Initialize and configure the LTDC
      (+) Enable or Disable Dither
      (+) Define the position of the line interrupt
      (+) reload layers registers with new parameters
      (+) Initialize and configure layer1 and layer2
      (+) Set and configure the color keying functionality
      (+) Configure and Enables or disables CLUT

Function Documentation

void LTDC_CLUTCmd	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		FunctionalState	NewState
	)

Enables or disables CLUT.

Parameters

NewState	new state of CLUT.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2 This parameter can be: ENABLE or DISABLE.

Return values

None

void LTDC_CLUTInit	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		LTDC_CLUT_InitTypeDef *	LTDC_CLUT_InitStruct
	)

configure the CLUT.

Parameters

LTDC_CLUT_InitStruct	pointer to a LTDC_CLUT_InitTypeDef structure that contains the CLUT configuration.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2

Return values

None

void LTDC_CLUTStructInit ( LTDC_CLUT_InitTypeDef * LTDC_CLUT_InitStruct )

Fills each LTDC_CLUT_InitStruct member with its default value.

Parameters

LTDC_CLUT_InitStruct pointer to a LTDC_CLUT_InitTypeDef structure which will be initialized.

Return values

None

< Initialize the CLUT adress and RGB values

void LTDC_Cmd ( FunctionalState NewState )

Enables or disables the LTDC Controller.

Parameters

NewState new state of the LTDC peripheral. This parameter can be: ENABLE or DISABLE.

Return values

None

void LTDC_ColorKeyingConfig	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		LTDC_ColorKeying_InitTypeDef *	LTDC_colorkeying_InitStruct,
		FunctionalState	NewState
	)

Set and configure the color keying.

Parameters

LTDC_colorkeying_InitStruct	pointer to a LTDC_ColorKeying_InitTypeDef structure that contains the color keying configuration.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2

Return values

None

void LTDC_ColorKeyingStructInit ( LTDC_ColorKeying_InitTypeDef * LTDC_colorkeying_InitStruct )

Fills each LTDC_colorkeying_InitStruct member with its default value.

Parameters

LTDC_colorkeying_InitStruct pointer to a LTDC_ColorKeying_InitTypeDef structure which will be initialized.

Return values

None

< Initialize the color keying values

void LTDC_DeInit ( void )

Deinitializes the LTDC peripheral registers to their default reset values.

Parameters

None

Return values

None

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void LTDC_DitherCmd ( FunctionalState NewState )

Enables or disables Dither.

Parameters

NewState new state of the Dither. This parameter can be: ENABLE or DISABLE.

Return values

None

FlagStatus LTDC_GetCDStatus ( uint32_t LTDC_CD )

Checks whether the specified LTDC's flag is set or not.

Parameters

LTDC_CD

specifies the flag to check. This parameter can be one of the following values:

LTDC_CD_VDES: vertical data enable current status.
LTDC_CD_HDES: horizontal data enable current status.
LTDC_CD_VSYNC: Vertical Synchronization current status.
LTDC_CD_HSYNC: Horizontal Synchronization current status.

Return values

The	new state of LTDC_CD (SET or RESET).

LTDC_PosTypeDef LTDC_GetPosStatus ( void )

Get the current position.

Parameters

LTDC_Pos_InitStruct pointer to a LTDC_PosTypeDef structure that contains the current position.

Return values

None

LTDC_RGBTypeDef LTDC_GetRGBWidth ( void )

Get the dither RGB width.

Parameters

LTDC_RGB_InitStruct pointer to a LTDC_RGBTypeDef structure that contains the Dither RGB width.

Return values

None

void LTDC_Init ( LTDC_InitTypeDef * LTDC_InitStruct )

Initializes the LTDC peripheral according to the specified parameters in the LTDC_InitStruct.

Note: This function can be used only when the LTDC is disabled.

Parameters

LTDC_InitStruct pointer to a LTDC_InitTypeDef structure that contains the configuration information for the specified LTDC peripheral.

Return values

None

void LTDC_LayerAddress	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		uint32_t	Address
	)

reconfigure layer address.

Parameters

Address	The color frame buffer start address.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2

Return values

Reload of the shadow registers values must be applied after layer address reconfiguration.

void LTDC_LayerAlpha	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		uint8_t	ConstantAlpha
	)

reconfigure constant alpha.

Parameters

ConstantAlpha	constant alpha value.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2

Return values

Reload of the shadow registers values must be applied after constant alpha reconfiguration.

void LTDC_LayerCmd	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		FunctionalState	NewState
	)

Enables or disables the LTDC_Layer Controller.

Parameters

LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2
NewState	new state of the LTDC_Layer peripheral. This parameter can be: ENABLE or DISABLE.

Return values

None

void LTDC_LayerInit	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		LTDC_Layer_InitTypeDef *	LTDC_Layer_InitStruct
	)

Initializes the LTDC Layer according to the specified parameters in the LTDC_LayerStruct.

Note: This function can be used only when the LTDC is disabled.

Parameters

LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2
LTDC_LayerStruct	pointer to a LTDC_LayerTypeDef structure that contains the configuration information for the specified LTDC peripheral.

Return values

None

void LTDC_LayerPixelFormat	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		uint32_t	PixelFormat
	)

reconfigure layer pixel format.

Parameters

PixelFormat	reconfigure the pixel format, this parameter can be one of the following values:LTDC_Pixelformat.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2

Return values

Reload of the shadow registers values must be applied after layer pixel format reconfiguration.

void LTDC_LayerPosition	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		uint16_t	OffsetX,
		uint16_t	OffsetY
	)

reconfigure the layer position.

Parameters

OffsetX	horizontal offset from start active width .
OffsetY	vertical offset from start active height.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2

Return values

Reload of the shadow registers values must be applied after layer position reconfiguration.

void LTDC_LayerSize	(	LTDC_Layer_TypeDef *	LTDC_Layerx,
		uint32_t	Width,
		uint32_t	Height
	)

reconfigure layer size.

Parameters

Width	layer window width.
Height	layer window height.
LTDC_layerx	Select the layer to be configured, this parameter can be one of the following values: LTDC_Layer1, LTDC_Layer2

Return values

Reload of the shadow registers values must be applied after layer size reconfiguration.

void LTDC_LayerStructInit ( LTDC_Layer_InitTypeDef * LTDC_Layer_InitStruct )

Fills each LTDC_Layer_InitStruct member with its default value.

Parameters

LTDC_Layer_InitStruct pointer to a LTDC_LayerTypeDef structure which will be initialized.

Return values

None

< Initialize the horizontal limit member

< Initialize the vertical limit member

< Initialize the pixel format member

< Initialize the constant alpha value

< Initialize the default color values

< Initialize the blending factors

< Initialize the frame buffer start address

< Initialize the frame buffer pitch and line length

< Initialize the frame buffer line number

void LTDC_LIPConfig ( uint32_t LTDC_LIPositionConfig )

Define the position of the line interrupt .

Parameters

LTDC_LIPositionConfig Line Interrupt Position.

Return values

None

void LTDC_PosStructInit ( LTDC_PosTypeDef * LTDC_Pos_InitStruct )

Fills each LTDC_Pos_InitStruct member with its default value.

Parameters

LTDC_Pos_InitStruct pointer to a LTDC_PosTypeDef structure which will be initialized.

Return values

None

void LTDC_ReloadConfig ( uint32_t LTDC_Reload )

reload layers registers with new parameters

Parameters

LTDC_Reload

specifies the type of reload. This parameter can be one of the following values:

LTDC_IMReload: Vertical blanking reload.
LTDC_VBReload: Immediate reload.

Return values

None

void LTDC_RGBStructInit ( LTDC_RGBTypeDef * LTDC_RGB_InitStruct )

Fills each LTDC_RGBStruct member with its default value.

Parameters

LTDC_RGB_InitStruct pointer to a LTDC_RGBTypeDef structure which will be initialized.

Return values

None

void LTDC_StructInit ( LTDC_InitTypeDef * LTDC_InitStruct )

Fills each LTDC_InitStruct member with its default value.

Parameters

LTDC_InitStruct pointer to a LTDC_InitTypeDef structure which will be initialized.

Return values

None

< Initialize the LTDC_HSPolarity member

< Initialize the LTDC_VSPolarity member

< Initialize the LTDC_DEPolarity member

< Initialize the LTDC_PCPolarity member

< Initialize the LTDC_HorizontalSync member

< Initialize the LTDC_VerticalSync member

< Initialize the LTDC_AccumulatedHBP member

< Initialize the LTDC_AccumulatedVBP member

< Initialize the LTDC_AccumulatedActiveW member

< Initialize the LTDC_AccumulatedActiveH member

< Initialize the LTDC_TotalWidth member

< Initialize the LTDC_TotalHeigh member

< Initialize the LTDC_BackgroundRedValue member

< Initialize the LTDC_BackgroundGreenValue member

< Initialize the LTDC_BackgroundBlueValue member

Functions

Detailed Description

Function Documentation