Class library for a serial lcd implemented on a DISCO-F469NI Development board running specific firmware for this purpose. More...

#include <DISCOF469SerialLCD.h>

Public Member Functions
	DISCOF469SerialLCD (PinName Tx, PinName Rx)
	Create a DISCOF469SerialLCD object for a graphics LCD connected to the specified pins.
void	Clear (uint32_t Color)
	Clears the LCD by filling it with the specified color pixels.
void	DrawPixel (uint16_t Xpos, uint16_t Ypos, uint32_t Color)
	Draws a pixel on the LCD.
uint32_t	ReadPixel (uint16_t Xpos, uint16_t Ypos)
	Reads the color of an LCD pixel.
void	DrawLine (uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint32_t Color)
	Draws a line on the LCD.
void	DrawRectangle (uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height, uint32_t Color)
	Draws a rectangle on the LCD.
void	FillRectangle (uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height, uint32_t Color)
	Draws a filled rectangle on the LCD.
void	DrawCircle (uint16_t Xpos, uint16_t Ypos, uint16_t Radius, uint32_t Color)
	Draws a circle on the LCD.
void	FillCircle (uint16_t Xpos, uint16_t Ypos, uint16_t Radius, uint32_t Color)
	Draws a filled circle on the LCD.
void	DrawEllipse (uint16_t Xpos, uint16_t Ypos, uint16_t XRadius, uint16_t YRadius, uint32_t Color)
	Draws an ellipse on the LCD.
void	FillEllipse (uint16_t Xpos, uint16_t Ypos, uint16_t XRadius, uint16_t YRadius, uint32_t Color)
	Draws a filled ellipse on the LCD.
void	DrawStringAtXY (uint16_t Xpos, uint16_t Ypos, uint8_t FontSize, uint32_t TextColor, uint32_t BackColor, char *Text)
	Displays a string on the LCD at Xpos,Ypos.
void	DrawStringAtLine (uint16_t Line, uint8_t FontSize, uint32_t TextColor, uint32_t BackColor, uint8_t Mode, char *Text)
	Displays a string on the LCD at a certain line based on the font size.
uint8_t	Touches (void)
	Determines if the touchscreen is being touched or not.
void	GetTouch1 (uint16_t x, uint16_t y)
	Gets the x and y coordinates of the first touch on the touchscreen.
void	GetTouch2 (uint16_t x, uint16_t y)
	Gets the x and y coordinates of the second touch on the touchscreen.
void	LED1 (uint8_t OnOff)
	Writes to the LCD's LED1.
void	LED2 (uint8_t OnOff)
	Writes to the LCD's LED1.
void	LED3 (uint8_t OnOff)
	Writes to the LCD's LED1.
void	LED4 (uint8_t OnOff)
	Writes to the LCD's LED1.

Detailed Description

Class library for a serial lcd implemented on a DISCO-F469NI Development board running specific firmware for this purpose.

Example:

 #include "mbed.h"
 #include "DISCOF469SerialLCD.h"
 
 DISCOF469SerialLCD lcd(PA_0, PA_1); //tx, rx
 
 void DisplayPattern(void);
 
 int main() {
     char buf[40];               
     int numtouches;             
     bool cleared = false;
     uint16_t x1, y1, x2, y2;
 
     DisplayPattern();
     lcd.LED1(1);
     wait(1.0);
     lcd.LED2(1);
     wait(1.0);
     lcd.LED3(1);
     wait(1.0);
     lcd.LED4(1);
     wait(1.0);
     lcd.Clear(LCD_WHITE);
     lcd.LED1(0);
     lcd.LED2(0);
     lcd.LED3(0);
     lcd.LED4(0);
     
     while(1) 
     {
         numtouches = lcd.Touches();     //read if the screen is touched
         if(numtouches > 0)              //has the screen been touched?
         {
             cleared = false;            //reset clear flag
             if(numtouches == 1)         //if one finger is on the screen
             {
                 lcd.GetTouch1(&x1, &y1);
                 sprintf(buf, "Touch 1: x=%3u y=%3u", x1, y1);
                 lcd.DrawStringAtLine(0,4,LCD_BLUE, LCD_WHITE, 0, buf);
                 lcd.FillCircle(x1, y1, 50, LCD_RED);
             }
             else if(numtouches == 2)    //if two fingers are on the screen
             {
                 lcd.GetTouch1(&x1, &y1);
                 lcd.GetTouch2(&x2, &y2);
                 sprintf(buf, "Touch 1: x=%3u y=%3u", x1, y1);
                 lcd.DrawStringAtLine(0,4,LCD_BLUE, LCD_WHITE, 0, buf);
                 sprintf(buf, "Touch 2: x=%3u y=%3u", x2, y2);
                 lcd.DrawStringAtLine(1,4,LCD_BLUE, LCD_WHITE, 0, buf);
                 lcd.FillCircle(x1, y1, 50, LCD_RED);
                 lcd.FillCircle(x2, y2, 50, LCD_BLUE);
             }
         }
         else
         {
             if(!cleared)                //if the screen hasn't been cleared 
             {
                 lcd.Clear(LCD_WHITE);   //clear the screen after fingers left screen
                 cleared = true;
             }
         }
     }
 }
 
 void DisplayPattern(void)
 {
     lcd.FillRectangle(0, 0, 50, 479,LCD_WHITE);
     lcd.FillRectangle(50, 0, 50, 479,LCD_SILVER);
     lcd.FillRectangle(100, 0, 50, 479,LCD_GRAY);
     lcd.FillRectangle(150, 0, 50, 479,LCD_BLACK);
     lcd.FillRectangle(200, 0, 50, 479,LCD_RED);
     lcd.FillRectangle(250, 0, 50, 479,LCD_MAROON);
     lcd.FillRectangle(300, 0, 50, 479,LCD_YELLOW);
     lcd.FillRectangle(350, 0, 50, 479,LCD_OLIVE);
     lcd.FillRectangle(400, 0, 50, 479,LCD_LIME);
     lcd.FillRectangle(450, 0, 50, 479,LCD_GREEN);
     lcd.FillRectangle(500, 0, 50, 479,LCD_AQUA);
     lcd.FillRectangle(550, 0, 50, 479,LCD_TEAL);
     lcd.FillRectangle(600, 0, 50, 479,LCD_BLUE);
     lcd.FillRectangle(650, 0, 50, 479,LCD_NAVY);
     lcd.FillRectangle(700, 0, 50, 479,LCD_FUCHSIA);
     lcd.FillRectangle(750, 0, 50, 479,LCD_PURPLE);
     lcd.DrawStringAtXY(0, 0, 1, LCD_WHITE, LCD_BLACK, "White");
     lcd.DrawStringAtXY(50, 0, 1, LCD_WHITE, LCD_BLACK, "Silver");
     lcd.DrawStringAtXY(100, 0, 1, LCD_WHITE, LCD_BLACK, "Gray");
     lcd.DrawStringAtXY(150, 0, 1, LCD_WHITE, LCD_BLACK, "Black");
     lcd.DrawStringAtXY(200, 0, 1, LCD_WHITE, LCD_BLACK, "Red");
     lcd.DrawStringAtXY(250, 0, 1, LCD_WHITE, LCD_BLACK, "Maroon");
     lcd.DrawStringAtXY(300, 0, 1, LCD_WHITE, LCD_BLACK, "Yellow");
     lcd.DrawStringAtXY(350, 0, 1, LCD_WHITE, LCD_BLACK, "Olive");
     lcd.DrawStringAtXY(400, 0, 1, LCD_WHITE, LCD_BLACK, "Lime");
     lcd.DrawStringAtXY(450, 0, 1, LCD_WHITE, LCD_BLACK, "Green");
     lcd.DrawStringAtXY(500, 0, 1, LCD_WHITE, LCD_BLACK, "Aqua");
     lcd.DrawStringAtXY(550, 0, 1, LCD_WHITE, LCD_BLACK, "Teal");
     lcd.DrawStringAtXY(600, 0, 1, LCD_WHITE, LCD_BLACK, "Blue");
     lcd.DrawStringAtXY(650, 0, 1, LCD_WHITE, LCD_BLACK, "Navy");
     lcd.DrawStringAtXY(700, 0, 1, LCD_WHITE, LCD_BLACK, "Fuchsia");
     lcd.DrawStringAtXY(750, 0, 1, LCD_WHITE, LCD_BLACK, "Purple");
 }

Definition at line 156 of file DISCOF469SerialLCD.h.

Constructor & Destructor Documentation

DISCOF469SerialLCD	(	PinName	Tx,
		PinName	Rx
	)

Create a DISCOF469SerialLCD object for a graphics LCD connected to the specified pins.

Parameters:

Tx	USART TX pin used to connect to Nextion LCD's RX pin
Rx	USART RX pin used to connect to Nextion LCD's TX pin

Definition at line 7 of file DISCOF469SerialLCD.cpp.

Member Function Documentation

void Clear ( uint32_t Color )

Clears the LCD by filling it with the specified color pixels.

Parameters:

Color Color to fill the screen with - represented in ARGB8888 color space format.

Definition at line 19 of file DISCOF469SerialLCD.cpp.

void DrawCircle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Radius,
		uint32_t	Color
	)

Draws a circle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Radius	Circle radius
Color	Circle color in ARGB mode (8-8-8-8)

Definition at line 52 of file DISCOF469SerialLCD.cpp.

void DrawEllipse	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	XRadius,
		uint16_t	YRadius,
		uint32_t	Color
	)

Draws an ellipse on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
XRadius	Ellipse X radius
YRadius	Ellipse Y radius
Color	Ellipse color in ARGB mode (8-8-8-8)

Definition at line 60 of file DISCOF469SerialLCD.cpp.

void DrawLine	(	uint16_t	x1,
		uint16_t	y1,
		uint16_t	x2,
		uint16_t	y2,
		uint32_t	Color
	)

Draws a line on the LCD.

Parameters:

x1	Point 1 X position
y1	Point 1 Y position
x2	Point 2 X position
y2	Point 2 Y position
Color	Line color in ARGB mode (8-8-8-8)

Definition at line 40 of file DISCOF469SerialLCD.cpp.

void DrawPixel	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint32_t	Color
	)

Draws a pixel on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Color	Pixel color in ARGB mode (8-8-8-8)

Definition at line 23 of file DISCOF469SerialLCD.cpp.

void DrawRectangle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Width,
		uint16_t	Height,
		uint32_t	Color
	)

Draws a rectangle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Width	Rectangle width
Height	Rectangle height
Color	Rectangle color in ARGB mode (8-8-8-8)

Definition at line 44 of file DISCOF469SerialLCD.cpp.

void DrawStringAtLine	(	uint16_t	Line,
		uint8_t	FontSize,
		uint32_t	TextColor,
		uint32_t	BackColor,
		uint8_t	Mode,
		char *	Text
	)

Displays a string on the LCD at a certain line based on the font size.

Parameters:

Line	Line where to display the string
FontSize	The size of the text (0 - 4)
TextColor	The text foreground color
BackColor	The text background color
Mode	Display mode (0=LEFT mode; 1=CENTER mode; 2=RIGHT mode)
Text	String to display on LCD

Definition at line 72 of file DISCOF469SerialLCD.cpp.

void DrawStringAtXY	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint8_t	FontSize,
		uint32_t	TextColor,
		uint32_t	BackColor,
		char *	Text
	)

Displays a string on the LCD at Xpos,Ypos.

Parameters:

Xpos	X position (in pixel)
Ypos	Y position (in pixel)
FontSize	The size of the text (0 - 4)
TextColor	The text foreground color
BackColor	The text background color
Text	String to display on LCD

Definition at line 68 of file DISCOF469SerialLCD.cpp.

void FillCircle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Radius,
		uint32_t	Color
	)

Draws a filled circle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Radius	Circle radius
Color	Circle color in ARGB mode (8-8-8-8)

Definition at line 56 of file DISCOF469SerialLCD.cpp.

void FillEllipse	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	XRadius,
		uint16_t	YRadius,
		uint32_t	Color
	)

Draws a filled ellipse on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
XRadius	Ellipse X radius
YRadius	Ellipse Y radius
Color	Ellipse color in ARGB mode (8-8-8-8)

Definition at line 64 of file DISCOF469SerialLCD.cpp.

void FillRectangle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Width,
		uint16_t	Height,
		uint32_t	Color
	)

Draws a filled rectangle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Width	Rectangle width
Height	Rectangle height
Color	Rectangle color in ARGB mode (8-8-8-8)

Definition at line 48 of file DISCOF469SerialLCD.cpp.

void GetTouch1	(	uint16_t *	x,
		uint16_t *	y
	)

Gets the x and y coordinates of the first touch on the touchscreen.

Parameters:

x	Pointer to the x coordinate
y	Pointer to the y coordinate

Definition at line 85 of file DISCOF469SerialLCD.cpp.

void GetTouch2	(	uint16_t *	x,
		uint16_t *	y
	)

Gets the x and y coordinates of the second touch on the touchscreen.

Parameters:

x	Pointer to the x coordinate
y	Pointer to the y coordinate

Definition at line 95 of file DISCOF469SerialLCD.cpp.

void LED1 ( uint8_t OnOff )

Writes to the LCD's LED1.

Parameters:

OnOff 1 = On; 0 = Off

Definition at line 105 of file DISCOF469SerialLCD.cpp.

void LED2 ( uint8_t OnOff )

Writes to the LCD's LED1.

Parameters:

OnOff 1 = On; 0 = Off

Definition at line 109 of file DISCOF469SerialLCD.cpp.

void LED3 ( uint8_t OnOff )

Writes to the LCD's LED1.

Parameters:

OnOff 1 = On; 0 = Off

Definition at line 113 of file DISCOF469SerialLCD.cpp.

void LED4 ( uint8_t OnOff )

Writes to the LCD's LED1.

Parameters:

OnOff 1 = On; 0 = Off

Definition at line 117 of file DISCOF469SerialLCD.cpp.

uint32_t ReadPixel	(	uint16_t	Xpos,
		uint16_t	Ypos
	)

Reads the color of an LCD pixel.

Parameters:

Xpos	X position
Ypos	Y position

Return values:

uint32_t Pixel color in ARGB mode (8-8-8-8)

Definition at line 27 of file DISCOF469SerialLCD.cpp.

uint8_t Touches ( void )

Determines if the touchscreen is being touched or not.

Return values:

uint8_t Number of simulantanous touches on screen. 0 = not touched.

Definition at line 76 of file DISCOF469SerialLCD.cpp.

Type:	Library
Created:	18 Feb 2018
Imports:	16
Forks:	0
Commits:	5
Dependents:	0
Dependencies:	1
Followers:	3

Important changes to repositories hosted on mbed.com

DISCOF469SerialLCD Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

Important changes to repositories hosted on mbed.com

DISCOF469SerialLCD Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning