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Macros
#define	LCD_MAX_LINES 4
	Maximum allowable numbers of lines for all possible displays. More...

#define	LCD_MAX_WIDTH 20
	Maximum allowable with of all possible displays. More...

Functions
void	InitLCD (void)
	Initializes the LC-Display. More...

bool	LCDBuildVBarChar (uint8_t nBars)
	Builds a Character for vertical Bar Graph. More...

bool	LCDBuildVBarChars (uint8_t nBars)
	Builds the Character Array for vertical Bar Graphs. More...

void	LCDClear (void)
	Clears the LCD and sets Cursor to Home Postion. More...

static uint8_t	LCDGetBrightness (void)
	Gets the current Brightness of the LCD Backlight. More...

static uint8_t	LCDGetContrast (void)
	Gets the current Contrast of the LCD. More...

void	LCDGoTo (uint8_t pos)
	Sets the Cursor Position. More...

int8_t	LCDHBarGraph (uint8_t line, uint8_t val)
	Prints a Line of Bar Graph. The rest of the line is cleared. More...

void	LCDInitCGRAM ()
	Initializes the Character Generator RAM. More...

void	LCDPrintLine_P (uint8_t line, const char *fmt,...)
	Printf for one complete Line of the Display. More...

static void	LCDSetBrightness (uint8_t val)
	Sets the Brightness of the LCD Backlight. More...

static void	LCDSetContrast (uint8_t val)
	Sets the Contrast of the LCD. More...

Variables
FILE	lcd

uint8_t	lcdVbarChar [LCD_MAX_LINES]
	Holds the characters for Vertical Bar Graph from Line 3 to 0. More...

Macro Definition Documentation

◆ LCD_MAX_LINES

#define LCD_MAX_LINES 4

Maximum allowable numbers of lines for all possible displays.

◆ LCD_MAX_WIDTH

#define LCD_MAX_WIDTH 20

Maximum allowable with of all possible displays.

Function Documentation

◆ InitLCD()

void InitLCD ( void )

Initializes the LC-Display.

References delay50ms(), delay50us(), delay5ms(), LCD_DDR, LCD_EN, LCD_LIGHT, LCD_PORT, LCDClear(), LCDInitCGRAM(), and LCDWriteCmd().

Referenced by Init().

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◆ LCDBuildVBarChar()

bool LCDBuildVBarChar ( uint8_t nBars )

Builds a Character for vertical Bar Graph.

The vertical bar graph character can be printed as character code 3

Parameters

nBars The number of black Lines (0..8)

Returns: True if OK, false if not

References LCDGoTo(), LCDWriteCmd(), and LCDWriteData().

Referenced by LCDBuildVBarChars().

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◆ LCDBuildVBarChars()

bool LCDBuildVBarChars ( uint8_t nBars )

Builds the Character Array for vertical Bar Graphs.

Parameters

nBars The number of black Bars

Returns: True if OK, false if not

References config, displayMetrics, confStruct_t::displayType, LCDBuildVBarChar(), lcdVbarChar, and displayMetrics_T::nLines.

Referenced by VBarGraphPrepare(), and VBarTest().

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◆ LCDClear()

void LCDClear ( void )

Clears the LCD and sets Cursor to Home Postion.

References LCDWriteCmd().

Referenced by CmdCalibrate(), CmdSetDisplay(), HBarTest(), InitLCD(), ShowScreen(), and VBarTest().

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◆ LCDGetBrightness()

static uint8_t LCDGetBrightness ( void )

inlinestatic

Gets the current Brightness of the LCD Backlight.

Returns: The Brightness

Referenced by CmdSetBright(), DoKFlags(), and DoTflags().

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◆ LCDGetContrast()

static uint8_t LCDGetContrast ( void )

inlinestatic

Gets the current Contrast of the LCD.

Returns: The Contrast

Referenced by CmdSetContrast().

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◆ LCDGoTo()

void LCDGoTo ( uint8_t pos )

Sets the Cursor Position.

    Lines start at 0 and 64 for the 2x16 and
    0,64,20 and 84 for the 4x20-Display

Parameters

pos	The Position

References LCDWriteCmd().

Referenced by EnterDouble(), LCDBuildVBarChar(), LCDHBarGraph(), LCDPrintLine_P(), and ShowScreen().

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◆ LCDHBarGraph()

int8_t LCDHBarGraph	(	uint8_t	line,
		uint8_t	val
	)

Prints a Line of Bar Graph. The rest of the line is cleared.

Parameters

line	The 0-based Line Number
val	The number of black Lines to draw. This is not a percent value! Maximum is five times the width of the display (i.e. 100 for 4x20 and 80 for 2x16).

Returns: -1 on Error, 0 if OK

References config, displayMetrics, confStruct_t::displayType, LCDBuildHBarChar(), LCDGoTo(), LCDWriteData(), displayMetrics_T::nLines, displayMetrics_T::startLine, and displayMetrics_T::width.

Referenced by HBarGraphPerCent(), and HBarTest().

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◆ LCDInitCGRAM()

void LCDInitCGRAM ( )

Initializes the Character Generator RAM.

This routine basically defines the antenna-character (DCF77-symbol). Since a character 0 cannot be used for printf, we use character 1 for it.
The symbols for bargraph display use character codes 2 to 6. Character code 7 is unused until now.

References LCDWriteCmd(), and LCDWriteData().

Referenced by InitLCD().

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◆ LCDPrintLine_P()

void LCDPrintLine_P	(	uint8_t	line,
		const char *	fmt,
			...
	)

Printf for one complete Line of the Display.

This is a handy printf-like function for outputting display content. It ensures that no more characters are written than one line can hold and automatically deletes all characters beyond the content so that no fragments of the previous content remain visible.

Parameters