STM32F429I-Discovery BSP User Manual: STM32F429I DISCOVERY LCD Private Functions

STM32F429I Discovery BSP Drivers

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STM32F429I-Discovery BSP User Manual
Functions
STM32F429I DISCOVERY LCD Private Functions
STM32F429I DISCOVERY LCD

Functions

uint8_t BSP_LCD_Init (void)
 Initializes the LCD.
uint32_t BSP_LCD_GetXSize (void)
 Gets the LCD X size.
uint32_t BSP_LCD_GetYSize (void)
 Gets the LCD Y size.
void BSP_LCD_LayerDefaultInit (uint16_t LayerIndex, uint32_t FB_Address)
 Initializes the LCD layers.
void BSP_LCD_SelectLayer (uint32_t LayerIndex)
 Selects the LCD Layer.
void BSP_LCD_SetLayerVisible (uint32_t LayerIndex, FunctionalState state)
 Sets a LCD Layer visible.
void BSP_LCD_SetTransparency (uint32_t LayerIndex, uint8_t Transparency)
 Configures the Transparency.
void BSP_LCD_SetLayerAddress (uint32_t LayerIndex, uint32_t Address)
 Sets a LCD layer frame buffer address.
void BSP_LCD_SetLayerWindow (uint16_t LayerIndex, uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
 Sets the Display window.
void BSP_LCD_SetColorKeying (uint32_t LayerIndex, uint32_t RGBValue)
 Configures and sets the color Keying.
void BSP_LCD_ResetColorKeying (uint32_t LayerIndex)
 Disables the color Keying.
uint32_t BSP_LCD_GetTextColor (void)
 Gets the LCD Text color.
uint32_t BSP_LCD_GetBackColor (void)
 Gets the LCD Background color.
void BSP_LCD_SetTextColor (uint32_t Color)
 Sets the Text color.
void BSP_LCD_SetBackColor (uint32_t Color)
 Sets the Background color.
void BSP_LCD_SetFont (sFONT *pFonts)
 Sets the Text Font.
sFONT * BSP_LCD_GetFont (void)
 Gets the Text Font.
uint32_t BSP_LCD_ReadPixel (uint16_t Xpos, uint16_t Ypos)
 Reads Pixel.
void BSP_LCD_Clear (uint32_t Color)
 Clears the hole LCD.
void BSP_LCD_ClearStringLine (uint32_t Line)
 Clears the selected line.
void BSP_LCD_DisplayChar (uint16_t Xpos, uint16_t Ypos, uint8_t Ascii)
 Displays one character.
void BSP_LCD_DisplayStringAt (uint16_t X, uint16_t Y, uint8_t *pText, Text_AlignModeTypdef mode)
 Displays a maximum of 60 char on the LCD.
void BSP_LCD_DisplayStringAtLine (uint16_t Line, uint8_t *ptr)
 Displays a maximum of 20 char on the LCD.
void BSP_LCD_DrawHLine (uint16_t Xpos, uint16_t Ypos, uint16_t Length)
 Displays an horizontal line.
void BSP_LCD_DrawVLine (uint16_t Xpos, uint16_t Ypos, uint16_t Length)
 Displays a vertical line.
void BSP_LCD_DrawLine (uint16_t X1, uint16_t Y1, uint16_t X2, uint16_t Y2)
 Displays an uni-line (between two points).
void BSP_LCD_DrawRect (uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
 Displays a rectangle.
void BSP_LCD_DrawCircle (uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
 Displays a circle.
void BSP_LCD_DrawPolygon (pPoint Points, uint16_t PointCount)
 Displays an poly-line (between many points).
void BSP_LCD_DrawEllipse (int Xpos, int Ypos, int XRadius, int YRadius)
 Displays an Ellipse.
void BSP_LCD_DrawBitmap (uint32_t X, uint32_t Y, uint8_t *pBmp)
 Displays a bitmap picture loaded in the internal Flash (32 bpp).
void BSP_LCD_FillRect (uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
 Displays a full rectangle.
void BSP_LCD_FillCircle (uint16_t Xpos, uint16_t Ypos, uint16_t Radius)
 Displays a full circle.
void BSP_LCD_FillTriangle (uint16_t X1, uint16_t X2, uint16_t X3, uint16_t Y1, uint16_t Y2, uint16_t Y3)
 Fill triangle.
void BSP_LCD_FillPolygon (pPoint Points, uint16_t PointCount)
 Displays a full poly-line (between many points).
void BSP_LCD_FillEllipse (int Xpos, int Ypos, int XRadius, int YRadius)
 Draw a full ellipse.
void BSP_LCD_DisplayOn (void)
 Enables the Display.
void BSP_LCD_DisplayOff (void)
 Disables the Display.
void BSP_LCD_DrawPixel (uint16_t Xpos, uint16_t Ypos, uint32_t RGB_Code)
 Writes Pixel.
static void DrawChar (uint16_t Xpos, uint16_t Ypos, const uint8_t *c)
 Draws a character on LCD.
static void FillBuffer (uint32_t LayerIndex, void *pDst, uint32_t xSize, uint32_t ySize, uint32_t OffLine, uint32_t ColorIndex)
 Fills buffer.
static void ConvertLineToARGB8888 (void *pSrc, void *pDst, uint32_t xSize, uint32_t ColorMode)
 Converts Line to ARGB8888 pixel format.

Function Documentation

void BSP_LCD_Clear ( uint32_t  Color)

Clears the hole LCD.

Parameters:
Color,:the color of the background

Definition at line 471 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_GetXSize(), BSP_LCD_GetYSize(), FillBuffer(), and LtdcHandler.

void BSP_LCD_ClearStringLine ( uint32_t  Line)

Clears the selected line.

Parameters:
Line,:the line to be cleared

Definition at line 481 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, LCD_DrawPropTypeDef::BackColor, BSP_LCD_FillRect(), BSP_LCD_GetXSize(), BSP_LCD_SetTextColor(), and LCD_DrawPropTypeDef::TextColor.

void BSP_LCD_DisplayChar ( uint16_t  Xpos,
uint16_t  Ypos,
uint8_t  Ascii 
)

Displays one character.

Parameters:
Xpos,:start column address
Ypos,:the Line where to display the character shape
Ascii,:character ascii code, must be between 0x20 and 0x7E

Definition at line 499 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, DrawChar(), and LCD_DrawPropTypeDef::pFont.

Referenced by BSP_LCD_DisplayStringAt().

void BSP_LCD_DisplayOff ( void  )

Disables the Display.

Definition at line 1116 of file stm32f429i_discovery_lcd.c.

References LcdDrv.

void BSP_LCD_DisplayOn ( void  )

Enables the Display.

Definition at line 1105 of file stm32f429i_discovery_lcd.c.

References LcdDrv.

void BSP_LCD_DisplayStringAt ( uint16_t  X,
uint16_t  Y,
uint8_t *  pText,
Text_AlignModeTypdef  mode 
)

Displays a maximum of 60 char on the LCD.

Parameters:
X,:pointer to x position (in pixel)
Y,:pointer to y position (in pixel)
pText,:pointer to string to display on LCD
mode,:The display mode This parameter can be one of the following values:
  • CENTER_MODE
  • RIGHT_MODE
  • LEFT_MODE

Definition at line 516 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_DisplayChar(), BSP_LCD_GetXSize(), CENTER_MODE, LEFT_MODE, LCD_DrawPropTypeDef::pFont, and RIGHT_MODE.

Referenced by BSP_LCD_DisplayStringAtLine().

void BSP_LCD_DisplayStringAtLine ( uint16_t  Line,
uint8_t *  ptr 
)

Displays a maximum of 20 char on the LCD.

Parameters:
Line,:the Line where to display the character shape
ptr,:pointer to string to display on LCD

Definition at line 570 of file stm32f429i_discovery_lcd.c.

References BSP_LCD_DisplayStringAt(), and LEFT_MODE.

void BSP_LCD_DrawBitmap ( uint32_t  X,
uint32_t  Y,
uint8_t *  pBmp 
)

Displays a bitmap picture loaded in the internal Flash (32 bpp).

Parameters:
X,:the bmp x position in the LCD
Y,:the bmp Y position in the LCD
pBmp,:Bmp picture address in the internal Flash

Definition at line 805 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_GetXSize(), ConvertLineToARGB8888(), and LtdcHandler.

void BSP_LCD_DrawCircle ( uint16_t  Xpos,
uint16_t  Ypos,
uint16_t  Radius 
)

Displays a circle.

Parameters:
Xpos,:the X position
Ypos,:the Y position
Radius,:the circle radius

Definition at line 707 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and BSP_LCD_DrawPixel().

Referenced by BSP_LCD_FillCircle().

void BSP_LCD_DrawEllipse ( int  Xpos,
int  Ypos,
int  XRadius,
int  YRadius 
)

Displays an Ellipse.

Parameters:
Xpos,:the X position
Ypos,:the Y position
XRadius,:the X radius of ellipse
YRadius,:the Y radius of ellipse

Definition at line 773 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and BSP_LCD_DrawPixel().

void BSP_LCD_DrawHLine ( uint16_t  Xpos,
uint16_t  Ypos,
uint16_t  Length 
)

Displays an horizontal line.

Parameters:
Xpos,:the X position
Ypos,:the Y position
Length,:line length

Definition at line 581 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_GetXSize(), FillBuffer(), and LtdcHandler.

Referenced by BSP_LCD_DrawRect(), BSP_LCD_FillCircle(), and BSP_LCD_FillEllipse().

void BSP_LCD_DrawLine ( uint16_t  X1,
uint16_t  Y1,
uint16_t  X2,
uint16_t  Y2 
)

Displays an uni-line (between two points).

Parameters:
X1,:the point 1 X position
Y1,:the point 1 Y position
X2,:the point 2 X position
Y2,:the point 2 Y position

Definition at line 616 of file stm32f429i_discovery_lcd.c.

References ABS, ActiveLayer, and BSP_LCD_DrawPixel().

Referenced by BSP_LCD_DrawPolygon(), and BSP_LCD_FillTriangle().

void BSP_LCD_DrawPixel ( uint16_t  Xpos,
uint16_t  Ypos,
uint32_t  RGB_Code 
)

Writes Pixel.

Parameters:
Xpos,:the X position
Ypos,:the Y position
RGB_Code,:the pixel color in ARGB mode (8-8-8-8)

Definition at line 1215 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_GetXSize(), and LtdcHandler.

Referenced by BSP_LCD_DrawCircle(), BSP_LCD_DrawEllipse(), BSP_LCD_DrawLine(), and DrawChar().

void BSP_LCD_DrawPolygon ( pPoint  Points,
uint16_t  PointCount 
)

Displays an poly-line (between many points).

Parameters:
Points,:pointer to the points array
PointCount,:Number of points

Definition at line 746 of file stm32f429i_discovery_lcd.c.

References BSP_LCD_DrawLine(), Point::X, and Point::Y.

void BSP_LCD_DrawRect ( uint16_t  Xpos,
uint16_t  Ypos,
uint16_t  Width,
uint16_t  Height 
)

Displays a rectangle.

Parameters:
Xpos,:the X position
Ypos,:the Y position
Height,:display rectangle height
Width,:display rectangle width

Definition at line 690 of file stm32f429i_discovery_lcd.c.

References BSP_LCD_DrawHLine(), and BSP_LCD_DrawVLine().

void BSP_LCD_DrawVLine ( uint16_t  Xpos,
uint16_t  Ypos,
uint16_t  Length 
)

Displays a vertical line.

Parameters:
Xpos,:the X position
Ypos,:the Y position
Length,:line length

Definition at line 598 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_GetXSize(), FillBuffer(), and LtdcHandler.

Referenced by BSP_LCD_DrawRect().

void BSP_LCD_FillCircle ( uint16_t  Xpos,
uint16_t  Ypos,
uint16_t  Radius 
)

Displays a full circle.

Parameters:
Xpos,:the X position
Ypos,:the Y position
Radius,:the circle radius

Definition at line 885 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_DrawCircle(), BSP_LCD_DrawHLine(), and BSP_LCD_SetTextColor().

void BSP_LCD_FillEllipse ( int  Xpos,
int  Ypos,
int  XRadius,
int  YRadius 
)

Draw a full ellipse.

Parameters:
Xpos,:the X position
Ypos,:the Y position
XRadius,:X radius of ellipse
YRadius,:Y radius of ellipse.

Definition at line 1077 of file stm32f429i_discovery_lcd.c.

References BSP_LCD_DrawHLine().

void BSP_LCD_FillPolygon ( pPoint  Points,
uint16_t  PointCount 
)

Displays a full poly-line (between many points).

Parameters:
Points,:pointer to the points array
PointCount,:Number of points

Definition at line 1009 of file stm32f429i_discovery_lcd.c.

References BSP_LCD_FillTriangle(), POLY_X, POLY_Y, Point::X, and Point::Y.

void BSP_LCD_FillRect ( uint16_t  Xpos,
uint16_t  Ypos,
uint16_t  Width,
uint16_t  Height 
)

Displays a full rectangle.

Parameters:
Xpos,:the X position
Ypos,:the Y position
Height,:rectangle height
Width,:rectangle width

Definition at line 865 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_GetXSize(), BSP_LCD_SetTextColor(), FillBuffer(), and LtdcHandler.

Referenced by BSP_LCD_ClearStringLine().

void BSP_LCD_FillTriangle ( uint16_t  X1,
uint16_t  X2,
uint16_t  X3,
uint16_t  Y1,
uint16_t  Y2,
uint16_t  Y3 
)

Fill triangle.

Parameters:
X1,:the point 1 x position
Y1,:the point 1 y position
X2,:the point 2 x position
Y2,:the point 2 y position
X3,:the point 3 x position
Y3,:the point 3 y position

Definition at line 936 of file stm32f429i_discovery_lcd.c.

References ABS, and BSP_LCD_DrawLine().

Referenced by BSP_LCD_FillPolygon().

uint32_t BSP_LCD_GetBackColor ( void  )

Gets the LCD Background color.

Return values:
Backgroundcolor

Definition at line 390 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and LCD_DrawPropTypeDef::BackColor.

sFONT* BSP_LCD_GetFont ( void  )

Gets the Text Font.

Return values:
Layerfont

Definition at line 426 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and LCD_DrawPropTypeDef::pFont.

uint32_t BSP_LCD_GetTextColor ( void  )

Gets the LCD Text color.

Return values:
Textcolor

Definition at line 381 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and LCD_DrawPropTypeDef::TextColor.

uint32_t BSP_LCD_GetXSize ( void  )

Gets the LCD X size.

Return values:
Theused LCD X size

Definition at line 239 of file stm32f429i_discovery_lcd.c.

References LcdDrv.

Referenced by BSP_LCD_Clear(), BSP_LCD_ClearStringLine(), BSP_LCD_DisplayStringAt(), BSP_LCD_DrawBitmap(), BSP_LCD_DrawHLine(), BSP_LCD_DrawPixel(), BSP_LCD_DrawVLine(), BSP_LCD_FillRect(), BSP_LCD_LayerDefaultInit(), and BSP_LCD_ReadPixel().

uint32_t BSP_LCD_GetYSize ( void  )

Gets the LCD Y size.

Return values:
Theused LCD Y size

Definition at line 248 of file stm32f429i_discovery_lcd.c.

References LcdDrv.

Referenced by BSP_LCD_Clear(), and BSP_LCD_LayerDefaultInit().

uint8_t BSP_LCD_Init ( void  )

Initializes the LCD.

Return values:
LCDstate

Definition at line 156 of file stm32f429i_discovery_lcd.c.

References BSP_LCD_SetFont(), BSP_SDRAM_Init(), LCD_DEFAULT_FONT, LCD_OK, LcdDrv, LtdcHandler, MspInit(), and PeriphClkInitStruct.

void BSP_LCD_LayerDefaultInit ( uint16_t  LayerIndex,
uint32_t  FB_Address 
)

Initializes the LCD layers.

Parameters:
LayerIndex,:the layer foreground or background.
FB_Address,:the layer frame buffer.

Definition at line 258 of file stm32f429i_discovery_lcd.c.

References LCD_DrawPropTypeDef::BackColor, BSP_LCD_GetXSize(), BSP_LCD_GetYSize(), LCD_COLOR_BLACK, LCD_COLOR_WHITE, LCD_LayerCfgTypeDef, LtdcHandler, LCD_DrawPropTypeDef::pFont, and LCD_DrawPropTypeDef::TextColor.

uint32_t BSP_LCD_ReadPixel ( uint16_t  Xpos,
uint16_t  Ypos 
)

Reads Pixel.

Parameters:
Xpos,:the X position
Ypos,:the Y position
Return values:
RGBpixel color

Definition at line 437 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_GetXSize(), and LtdcHandler.

void BSP_LCD_ResetColorKeying ( uint32_t  LayerIndex)

Disables the color Keying.

Parameters:
LayerIndex,:the Layer foreground or background

Definition at line 371 of file stm32f429i_discovery_lcd.c.

References LtdcHandler.

void BSP_LCD_SelectLayer ( uint32_t  LayerIndex)

Selects the LCD Layer.

Parameters:
LayerIndex,:the Layer foreground or background.

Definition at line 293 of file stm32f429i_discovery_lcd.c.

References ActiveLayer.

void BSP_LCD_SetBackColor ( uint32_t  Color)

Sets the Background color.

Parameters:
Color,:the layer Background color code ARGB(8-8-8-8)

Definition at line 408 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and LCD_DrawPropTypeDef::BackColor.

void BSP_LCD_SetColorKeying ( uint32_t  LayerIndex,
uint32_t  RGBValue 
)

Configures and sets the color Keying.

Parameters:
LayerIndex,:the Layer foreground or background
RGBValue,:the Color reference

Definition at line 360 of file stm32f429i_discovery_lcd.c.

References LtdcHandler.

void BSP_LCD_SetFont ( sFONT *  pFonts)

Sets the Text Font.

Parameters:
pFonts,:the layer font to be used

Definition at line 417 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and LCD_DrawPropTypeDef::pFont.

Referenced by BSP_LCD_Init().

void BSP_LCD_SetLayerAddress ( uint32_t  LayerIndex,
uint32_t  Address 
)

Sets a LCD layer frame buffer address.

Parameters:
LayerIndex,:specifies the Layer foreground or background
Address,:new LCD frame buffer value

Definition at line 333 of file stm32f429i_discovery_lcd.c.

References LtdcHandler.

void BSP_LCD_SetLayerVisible ( uint32_t  LayerIndex,
FunctionalState  state 
)

Sets a LCD Layer visible.

Parameters:
LayerIndex,:the visible Layer.
state,:new state of the specified layer. This parameter can be: ENABLE or DISABLE.

Definition at line 304 of file stm32f429i_discovery_lcd.c.

References LtdcHandler.

void BSP_LCD_SetLayerWindow ( uint16_t  LayerIndex,
uint16_t  Xpos,
uint16_t  Ypos,
uint16_t  Width,
uint16_t  Height 
)

Sets the Display window.

Parameters:
LayerIndex,:layer index
Xpos,:LCD X position
Ypos,:LCD Y position
Width,:LCD window width
Height,:LCD window height

Definition at line 346 of file stm32f429i_discovery_lcd.c.

References LtdcHandler.

void BSP_LCD_SetTextColor ( uint32_t  Color)

Sets the Text color.

Parameters:
Color,:the Text color code ARGB(8-8-8-8)

Definition at line 399 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, and LCD_DrawPropTypeDef::TextColor.

Referenced by BSP_LCD_ClearStringLine(), BSP_LCD_FillCircle(), and BSP_LCD_FillRect().

void BSP_LCD_SetTransparency ( uint32_t  LayerIndex,
uint8_t  Transparency 
)

Configures the Transparency.

Parameters:
LayerIndex,:the Layer foreground or background.
Transparency,:the Transparency, This parameter must range from 0x00 to 0xFF.

Definition at line 323 of file stm32f429i_discovery_lcd.c.

References LtdcHandler.

static void ConvertLineToARGB8888 ( void *  pSrc,
void *  pDst,
uint32_t  xSize,
uint32_t  ColorMode 
) [static]

Converts Line to ARGB8888 pixel format.

Parameters:
pSrc,:pointer to source buffer
pDst,:output color
xSize,:buffer width
ColorMode,:input color mode

Definition at line 1315 of file stm32f429i_discovery_lcd.c.

References Dma2dHandler.

Referenced by BSP_LCD_DrawBitmap().

static void DrawChar ( uint16_t  Xpos,
uint16_t  Ypos,
const uint8_t *  c 
) [static]

Draws a character on LCD.

Parameters:
Xpos,:the Line where to display the character shape
Ypos,:start column address
c,:pointer to the character data

Definition at line 1227 of file stm32f429i_discovery_lcd.c.

References ActiveLayer, BSP_LCD_DrawPixel(), and LCD_DrawPropTypeDef::pFont.

Referenced by BSP_LCD_DisplayChar().

static void FillBuffer ( uint32_t  LayerIndex,
void *  pDst,
uint32_t  xSize,
uint32_t  ySize,
uint32_t  OffLine,
uint32_t  ColorIndex 
) [static]

Fills buffer.

Parameters:
LayerIndex,:layer index
pDst,:output color
xSize,:buffer width
ySize,:buffer height
OffLine,:offset
ColorIndex,:color Index

Definition at line 1284 of file stm32f429i_discovery_lcd.c.

References Dma2dHandler.

Referenced by BSP_LCD_Clear(), BSP_LCD_DrawHLine(), BSP_LCD_DrawVLine(), and BSP_LCD_FillRect().

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