Handles the 7-Segment Display. More...

Functions
void	Int16toDisplayHex (uint16_t i, volatile uint8_t *p)
	Writes 4 Digits to the Display RAM. More...

void	Int24toDisplayHex (uint32_t l, volatile uint8_t *p)
	Writes 6 Digits to the Display RAM. More...

void	Int8toDisplayHex (uint8_t b, volatile uint8_t *p)
	Writes 2 Hex-Digits to the Display RAM. More...

void	NextDigit (void)
	Advances to the next Digit. More...

void	SetDisplayAltLoBat (void)
	Sets the alternate display to LoBat. More...

void	SetDisplayAltUncal (void)
	Sets the alternate display to unCal. More...

void	SetDisplayAuto0 (volatile uint8_t *adr)
	Sets the display to Auto-0. More...

void	SetDisplayCAL (void)
	Sets the display to CAL (Calibration) More...

void	SetDisplayCLR (volatile uint8_t *adr)
	Clears the Display. More...

void	SetDisplayDefCon (void)
	Sets the display to dEFCon (default config) More...

void	SetDisplayDontTouch (void)
	Sets the display to don't touch ("-touch") More...

void	SetDisplayHiRes (void)
	Sets the display to HI (High Resolution) for two seconds. More...

void	SetDisplayLoRes (void)
	Sets the display to LO (Low Resolution) for two seconds. More...

void	SetDisplayRef (void)
	Sets the display to rEF. More...

Variables
const uint8_t	chars []
	The Character to 7-Segment mapping. More...

volatile uint8_t	display [7]
	Display RAM for normal Display display[0] is left. More...

volatile uint8_t	display_alt [7]
	Display RAM for alternate Display display_alt[5] is right. More...

volatile uint8_t	displayBlinkMask
	Sets Display Blink Mode. More...

volatile uint8_t	displayBrightness
	The current Display Brightness. More...

volatile DISPLAY_MODE_t	displayMode
	Selects the Display Mode. More...

bool	lzb
	Controlls Leading Zero Blanking. More...

Detailed Description

Handles the 7-Segment Display.

Copyright

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Function Documentation

void NextDigit ( void )

Advances to the next Digit.

This is done every ms. Since we have 6 digits the display refresh rate is 166.7Hz. This is fairly high but if dimming is used it reduces to 41 Hz allowing 3 different brightnesses plus off.

void Int8toDisplayHex	(	uint8_t	b,
		volatile uint8_t *	p
	)

Writes 2 Hex-Digits to the Display RAM.

Parameters

b	The Byte
p	The address inside the Display RAM

The second digit is only displayed if it's address is not display[7] or display_alt[6]. This allows the display to be shiftet right by one to make room for a '-' sign.

void Int16toDisplayHex	(	uint16_t	i,
		volatile uint8_t *	p
	)

Writes 4 Digits to the Display RAM.

Parameters

i	The Uint16 (packed BCD or packed HEX)
p	The address inside the Display RAM

void Int24toDisplayHex	(	uint32_t	l,
		volatile uint8_t *	p
	)

Writes 6 Digits to the Display RAM.

Parameters

l	The Uint32 (packed BCD or packed HEX)
p	The address inside the Display RAM

Note: The MSB of l is ignored.

void SetDisplayCLR ( volatile uint8_t * adr)

Clears the Display.

Parameters

adr	The Display Memory. May be display or display_alt.

void SetDisplayAuto0 ( volatile uint8_t * adr)

Sets the display to Auto-0.

Parameters

adr	The Display Memory. May be display or display_alt.

Writes "Auto-0" to the selected display RAM

void SetDisplayDontTouch ( void )

Sets the display to don't touch ("-touch")

This is used during calibration while averaging the zero weight or reference weight which each take about 13s. Display mode is set to normal by this function.

void SetDisplayRef ( void )

Sets the display to rEF.

This is used during calibration to request a reference weight. Display mode is set to normal by this function.

void SetDisplayAltLoBat ( void )

Sets the alternate display to LoBat.

This is always done in alternate display mode so display mode is set to alternate by this function.

void SetDisplayAltUncal ( void )

Sets the alternate display to unCal.

This is always done before entering the main loop if ERR_UNCAL is set in eFlags

void SetDisplayDefCon ( void )

Sets the display to dEFCon (default config)

This is used during calibration to request a reference weight. Display mode is set to normal by this function.

void SetDisplayCAL ( void )

Sets the display to CAL (Calibration)

This is used during calibration to indicate The beginning of the procedure Display mode is set to normal by this function.

void SetDisplayHiRes ( void )

Sets the display to HI (High Resolution) for two seconds.

A double click is used to change between fast (low resolution) and precision (high resolution, but slow). This routine is used to indicate high resolution mode. It includes a delay for two seconds.

Note: Display is set to normal mode.

void SetDisplayLoRes ( void )

Sets the display to LO (Low Resolution) for two seconds.

A double click is used to change between fast (low resolution) and precision (high resolution, but slow). This routine is used to indicate low resolution (fast) mode. It includes a delay for two seconds.

Note: Display is set to normal mode.

Variable Documentation

volatile uint8_t display[7]

Display RAM for normal Display display[0] is left.

Note: This is one byte larger than the display. Negative values will be posted to display[1] instead of display[0] with display[0] set to DISPLAY_MINUS so we need one digit more!

volatile uint8_t display_alt[7]

Display RAM for alternate Display display_alt[5] is right.

volatile uint8_t displayBrightness

The current Display Brightness.

Values from 0 to 3 are allowed. 0=display off, 3=full brightness

bool lzb

Controlls Leading Zero Blanking.

Set to TRUE before you display a Number with leading zero blanking.

const uint8_t chars[]

The Character to 7-Segment mapping.

Bit 0 = Segment A
...
Bit 6 = Segment G
Bit 7 = DP
Set display[] to any of this values or use custom characters.

Functions

Variables

Detailed Description

Function Documentation

Variable Documentation