License

This file is licensed under the Silabs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement.

Definition in file segmentlcd.c .


       #include <stdio.h>


       #include <string.h>


       #include <stdlib.h>


       #include <stdbool.h>


       #include "
       
        em_device.h
       
       "


       #include "
       
        em_cmu.h
       
       "


       #include "
       
        em_gpio.h
       
       "


       #include "
       
        segmentlcd.h
       
       "

Data Structures
struct	ARING_TypeDef
	Defines segment COM and BIT fields for A-wheel (suited for Anim)

struct	ARRAY_TypeDef
	Defines segment COM and BIT fields for array.

struct	BATTERY_TypeDef
	Defines segment COM and BIT fields for Battery (suited for Anim)

struct	Block_TypeDef
	Defines segment COM and BIT fields for top and bottom row blocks. The bit pattern shown above for characters can be split into upper and lower portions for animation purposes. There are separate COM and BIT numbers which together represent a set of stacked blocks which can be shown on two rows in the segmented LCD screen.

struct	CHAR_TypeDef
	Defines each text symbol's segment in terms of COM and BIT numbers, in a way that we can enumerate each bit for each text segment in the following bit pattern:

struct	EM_TypeDef
	Defines segment COM and BIT fields for Energy Modes on display.

struct	MCU_DISPLAY
	Defines prototype for all segments in display.

struct	NUMBER_TypeDef
	Defines segment COM and BIT fields numeric display.

Macros
#define	ALPHA_DIGITS 7

#define	ALPHA_VAL_MAX 9999999

#define	ALPHA_VAL_MIN -9999999

#define	NUM_DIGITS 4

#define	NUM_VAL_MAX 9999

#define	NUM_VAL_MAX_HEX 0xFFFF

#define	NUM_VAL_MIN -999

Functions
static void	displayBlock ( SegmentLCD_BlockMode_TypeDef topMode[SEGMENT_LCD_NUM_BLOCK_COLUMNS], SegmentLCD_BlockMode_TypeDef botMode[SEGMENT_LCD_NUM_BLOCK_COLUMNS])
	Working instance of LCD display.

void	SegmentLCD_AllOff (void)
	Disable all segments.

void	SegmentLCD_AllOn (void)
	Enable all segments.

void	SegmentLCD_AlphaNumberOff (void)
	Turn all segments on alpha characters in display off.

void	SegmentLCD_ARing (int anum, int on)
	Light up or shut off Ring of Indicators.

void	SegmentLCD_Battery (int batteryLevel)
	Light up or shut off Battery Indicator.

void	SegmentLCD_Block ( SegmentLCD_BlockMode_TypeDef topMode[SEGMENT_LCD_NUM_BLOCK_COLUMNS], SegmentLCD_BlockMode_TypeDef botMode[SEGMENT_LCD_NUM_BLOCK_COLUMNS])

void	SegmentLCD_Disable (void)
	Disables LCD controller.

void	SegmentLCD_EnergyMode (int em, int on)
	Light up or shut off Energy Mode indicator.

void	SegmentLCD_Init (bool useBoost)
	Segment LCD Initialization routine for EFM32 STK display.

void	SegmentLCD_LowerHex (uint32_t num)
	Write a hexadecimal number on lower alphanumeric part of Segment LCD display.

void	SegmentLCD_LowerNumber (int num)
	Write number on lower alphanumeric part of Segment LCD display.

void	SegmentLCD_Number (int value)
	Write number on numeric part on Segment LCD display.

void	SegmentLCD_NumberOff (void)
	Turn all segments on numeric digits in display off.

unsigned int	SegmentLCD_segCnt (unsigned int segdl, unsigned int segdh)
	Counting the number of active segments in a single common line.

void	SegmentLCD_Symbol (lcdSymbol s, int on)
	Light up or shut off various symbols on Segment LCD.

void	SegmentLCD_UnsignedHex (uint32_t value)
	Write hexadecimal number on numeric part on Segment LCD display.

void	SegmentLCD_Write (const char *string)
	Write text on LCD display.

Variables
static const uint16_t	Blocks []
	Defines highlighted segments for the block display.

static const MCU_DISPLAY	EFM_Display = EFM_DISPLAY_DEF
	Working instance of LCD display.

static const uint16_t	Segment_Alphabet []
	Defines higlighted segments for the alphabet, starting from "blank" (SPACE) Uses bit pattern as defined for text segments above. E.g. a capital O, would have bits 0 1 2 3 4 5 => 0x003f defined.

static const uint16_t	Segment_Numbers []
	Defines higlighted segments for the numeric display.

Function Documentation

static void displayBlock	(	SegmentLCD_BlockMode_TypeDef	`topMode[SEGMENT_LCD_NUM_BLOCK_COLUMNS],`
		SegmentLCD_BlockMode_TypeDef	`botMode[SEGMENT_LCD_NUM_BLOCK_COLUMNS]`
	)

static

Working instance of LCD display.

Enabling/disabling dynamic charge redistribution.

Parameters

true ==> enable, false ==> disable

Dynamically switching charge redistribution ON/OFF based on display contents

Parameters

None

Definition at line 1293 of file segmentlcd.c .

References Block_TypeDef::bit , Blocks , MCU_DISPLAY::BotBlocks , Block_TypeDef::com , and MCU_DISPLAY::TopBlocks .

unsigned int SegmentLCD_segCnt	(	unsigned int	`segdl,`
		unsigned int	`segdh`
	)

Counting the number of active segments in a single common line.

Parameters

value in registers LCD_SEGDnL and LCD_SEGDnH (n = common line number)

Definition at line 1120 of file segmentlcd.c .

Variable Documentation

const uint16_t Blocks[]

static

Initial value:

Defines highlighted segments for the block display.

Definition at line 328 of file segmentlcd.c .

Referenced by displayBlock() .

const uint16_t Segment_Numbers[]

static

Initial value:

Defines higlighted segments for the numeric display.

Definition at line 304 of file segmentlcd.c .

Referenced by SegmentLCD_Number() , and SegmentLCD_UnsignedHex() .

segmentlcd.c File Reference

License

Data Structures

Macros

Functions

Variables

Function Documentation

Variable Documentation