LCD - Liquid Crystal Display#

Liquid Crystal Display (LCD) Peripheral API.

This module contains functions to control the LDC peripheral of Silicon Labs 32-bit MCUs and SoCs. The LCD driver can drive up to 8x36 segmented LCD directly. The animation feature makes it possible to have active animations without the CPU intervention.

Modules#

LCD_AnimInit_TypeDef

LCD_FrameCountInit_TypeDef

LCD_Init_TypeDef

Enumerations#

enum
LCD_Mux_TypeDef {
lcdMuxStatic = LCD_DISPCTRL_MUX_STATIC
lcdMuxDuplex = LCD_DISPCTRL_MUX_DUPLEX
lcdMuxTriplex = LCD_DISPCTRL_MUX_TRIPLEX
lcdMuxQuadruplex = LCD_DISPCTRL_MUX_QUADRUPLEX
lcdMuxSextaplex = LCD_DISPCTRL_MUXE_MUXE | LCD_DISPCTRL_MUX_DUPLEX
lcdMuxOctaplex = LCD_DISPCTRL_MUXE_MUXE | LCD_DISPCTRL_MUX_QUADRUPLEX
}

MUX setting.

enum
LCD_Wave_TypeDef {
lcdWaveLowPower = LCD_DISPCTRL_WAVE_LOWPOWER
lcdWaveNormal = LCD_DISPCTRL_WAVE_NORMAL
}

Wave type.

enum
LCD_Bias_TypeDef {
lcdBiasStatic = LCD_DISPCTRL_BIAS_STATIC
lcdBiasOneHalf = LCD_DISPCTRL_BIAS_ONEHALF
lcdBiasOneThird = LCD_DISPCTRL_BIAS_ONETHIRD
lcdBiasOneFourth = LCD_DISPCTRL_BIAS_ONEFOURTH
}

Bias setting.

enum
LCD_VLCDSel_TypeDef {
lcdVLCDSelVDD = LCD_DISPCTRL_VLCDSEL_VDD
lcdVLCDSelVExtBoost = LCD_DISPCTRL_VLCDSEL_VEXTBOOST
}

VLCD Voltage Source.

enum
LCD_ConConf_TypeDef {
lcdConConfVLCD = LCD_DISPCTRL_CONCONF_VLCD
lcdConConfGND = LCD_DISPCTRL_CONCONF_GND
}

Contrast Configuration.

enum
LCD_VBoostLevel_TypeDef {
lcdVBoostLevel0 = LCD_DISPCTRL_VBLEV_LEVEL0
lcdVBoostLevel1 = LCD_DISPCTRL_VBLEV_LEVEL1
lcdVBoostLevel2 = LCD_DISPCTRL_VBLEV_LEVEL2
lcdVBoostLevel3 = LCD_DISPCTRL_VBLEV_LEVEL3
lcdVBoostLevel4 = LCD_DISPCTRL_VBLEV_LEVEL4
lcdVBoostLevel5 = LCD_DISPCTRL_VBLEV_LEVEL5
lcdVBoostLevel6 = LCD_DISPCTRL_VBLEV_LEVEL6
lcdVBoostLevel7 = LCD_DISPCTRL_VBLEV_LEVEL7
}

Voltage Boost Level - Data sheets document setting for each part number.

enum
LCD_FCPreScale_TypeDef {
lcdFCPrescDiv1 = LCD_BACTRL_FCPRESC_DIV1
lcdFCPrescDiv2 = LCD_BACTRL_FCPRESC_DIV2
lcdFCPrescDiv4 = LCD_BACTRL_FCPRESC_DIV4
lcdFCPrescDiv8 = LCD_BACTRL_FCPRESC_DIV8
}

Frame Counter Clock Prescaler, FC-CLK = FrameRate (Hz) / this factor.

enum
LCD_SegmentRange_TypeDef {
lcdSegment0_3 = (1 << 0)
lcdSegment4_7 = (1 << 1)
lcdSegment8_11 = (1 << 2)
lcdSegment12_15 = (1 << 3)
lcdSegment16_19 = (1 << 4)
lcdSegment20_23 = (1 << 5)
lcdSegment24_27 = (1 << 6)
lcdSegment28_31 = (1 << 7)
lcdSegment32_35 = (1 << 8)
lcdSegment36_39 = (1 << 9)
lcdSegmentAll = (0x03ff)
}

Segment selection.

enum
LCD_UpdateCtrl_TypeDef {
lcdUpdateCtrlRegular = LCD_CTRL_UDCTRL_REGULAR
lcdUpdateCtrlFCEvent = LCD_CTRL_UDCTRL_FCEVENT
lcdUpdateCtrlFrameStart = LCD_CTRL_UDCTRL_FRAMESTART
}

Update Data Control.

enum
LCD_AnimShift_TypeDef {
lcdAnimShiftNone = _LCD_BACTRL_AREGASC_NOSHIFT
lcdAnimShiftLeft = _LCD_BACTRL_AREGASC_SHIFTLEFT
lcdAnimShiftRight = _LCD_BACTRL_AREGASC_SHIFTRIGHT
}

Animation Shift operation; none, left or right.

enum
LCD_AnimLogic_TypeDef {
lcdAnimLogicAnd = LCD_BACTRL_ALOGSEL_AND
lcdAnimLogicOr = LCD_BACTRL_ALOGSEL_OR
}

Animation Logic Control, how AReg and BReg should be combined.

enum
LCD_AnimLoc_TypeDef {
lcdAnimLocSeg0To7 = LCD_BACTRL_ALOC_SEG0TO7
lcdAnimLocSeg8To15 = LCD_BACTRL_ALOC_SEG8TO15
}

Animation Location, set the LCD segments which animation applies to.

Functions#

void
LCD_Init(const LCD_Init_TypeDef *lcdInit)

Initialize the Liquid Crystal Display (LCD) controller.

void
LCD_VLCDSelect(LCD_VLCDSel_TypeDef vlcd)

Select a source for VLCD.

void
LCD_UpdateCtrl(LCD_UpdateCtrl_TypeDef ud)

Configure Update Control.

void
LCD_FrameCountInit(const LCD_FrameCountInit_TypeDef *fcInit)

Initialize the LCD Frame Counter.

void
LCD_AnimInit(const LCD_AnimInit_TypeDef *animInit)

Configure the LCD controller Animation feature.

void
LCD_SegmentRangeEnable(LCD_SegmentRange_TypeDef segmentRange, bool enable)

Enables updating this range of LCD segment lines.

void
LCD_SegmentSet(int com, int bit, bool enable)

Turn on or clear a segment.

void
LCD_SegmentSetLow(int com, uint32_t mask, uint32_t bits)

Update 0-31 lowest segments on a given COM-line in one operation according to the bit mask.

void
LCD_SegmentSetHigh(int com, uint32_t mask, uint32_t bits)

Update the high (32-39) segments on a given COM-line in one operation.

void
LCD_ContrastSet(int level)

Configure the contrast level on the LCD panel.

void
LCD_BiasSet(LCD_Bias_TypeDef bias)

Configure the bias level on the LCD panel.

void
LCD_VBoostSet(LCD_VBoostLevel_TypeDef vboost)

Configure voltage booster.

void
LCD_BiasSegmentSet(int segmentLine, int biasLevel)

Configure the bias level for a specific segment line for Direct Segment Control.

void
LCD_BiasComSet(int comLine, int biasLevel)

Configure the bias level for a specific segment line.

void
LCD_Enable(bool enable)

Enable or disable LCD controller.

void
LCD_AnimEnable(bool enable)

Enable or disable LCD Animation feature.

void
LCD_BlinkEnable(bool enable)

Enable or disable the LCD blink.

void
LCD_BlankEnable(bool enable)

Disable all segments while keeping segment state.

void
LCD_FrameCountEnable(bool enable)

Enable or disable LCD Frame counter.

int
LCD_AnimState(void)

Return the current animation state.

int
LCD_BlinkState(void)

Return the current blink state.

void
LCD_FreezeEnable(bool enable)

When set, LCD registers will not be updated until cleared.

uint32_t
LCD_SyncBusyGet(void)

Return SYNCBUSY bits, indicating which registers have pending updates.

void
LCD_SyncBusyDelay(uint32_t flags)

Poll LCD SYNCBUSY flags until the flag has been cleared.

uint32_t
LCD_IntGet(void)

Get pending LCD interrupt flags.

uint32_t
LCD_IntGetEnabled(void)

Get enabled and pending LCD interrupt flags.

void
LCD_IntSet(uint32_t flags)

Set one or more pending LCD interrupts from SW.

void
LCD_IntEnable(uint32_t flags)

Enable LCD interrupts.

void
LCD_IntDisable(uint32_t flags)

Disable LCD interrupts.

void
LCD_IntClear(uint32_t flags)

Clear one or more interrupt flags.

void
LCD_DSCEnable(bool enable)

Enable or disable LCD Direct Segment Control.

Macros#

#define
LCD_DEFAULT_CLOCK_PRESCALER 64

Default Clock Prescaler.

#define
LCD_DEFAULT_FRAME_RATE_DIV 4

Default LCD Frame Rate Divisor.

#define
LCD_DEFAULT_CONTRAST 15

Default LCD Contrast.

#define
LCD_INIT_DEFAULT undefined

Default configuration for LCD initialization structure, enables 160 segments.

#define
LCD_FRAME_COUNTER_VAL_MAX 64

Frame counter uses a maximum of 5 bits (FCTOP[5:0]).

Enumeration Documentation#

LCD_Mux_TypeDef#

LCD_Mux_TypeDef

MUX setting.

Enumerator
lcdMuxStatic

Static (segments can be multiplexed with LCD_COM[0]).

lcdMuxDuplex

Duplex / 1/2 Duty cycle (segments can be multiplexed with LCD_COM[0:1]).

lcdMuxTriplex

Triplex / 1/3 Duty cycle (segments can be multiplexed with LCD_COM[0:2]).

lcdMuxQuadruplex

Quadruplex / 1/4 Duty cycle (segments can be multiplexed with LCD_COM[0:3]).

lcdMuxSextaplex

Sextaplex / 1/6 Duty cycle (segments can be multiplexed with LCD_COM[0:5]).

lcdMuxOctaplex

Octaplex / 1/8 Duty cycle (segments can be multiplexed with LCD_COM[0:7]).


Definition at line 76 of file platform/emlib/inc/em_lcd.h

LCD_Wave_TypeDef#

LCD_Wave_TypeDef

Wave type.

Enumerator
lcdWaveLowPower

Low power optimized waveform output.

lcdWaveNormal

Regular waveform output.


Definition at line 99 of file platform/emlib/inc/em_lcd.h

LCD_Bias_TypeDef#

LCD_Bias_TypeDef

Bias setting.

Enumerator
lcdBiasStatic

Static (2 levels).

lcdBiasOneHalf

1/2 Bias (3 levels).

lcdBiasOneThird

1/3 Bias (4 levels).

lcdBiasOneFourth

1/4 Bias (5 levels).


Definition at line 114 of file platform/emlib/inc/em_lcd.h

LCD_VLCDSel_TypeDef#

LCD_VLCDSel_TypeDef

VLCD Voltage Source.

Enumerator
lcdVLCDSelVDD

VLCD Powered by VDD.

lcdVLCDSelVExtBoost

VLCD Powered by external VDD / Voltage Boost.


Definition at line 129 of file platform/emlib/inc/em_lcd.h

LCD_ConConf_TypeDef#

LCD_ConConf_TypeDef

Contrast Configuration.

Enumerator
lcdConConfVLCD

Contrast is adjusted relative to VDD (VLCD).

lcdConConfGND

Contrast is adjusted relative to Ground.


Definition at line 139 of file platform/emlib/inc/em_lcd.h

LCD_VBoostLevel_TypeDef#

LCD_VBoostLevel_TypeDef

Voltage Boost Level - Data sheets document setting for each part number.

Enumerator
lcdVBoostLevel0

Voltage boost LEVEL0.

lcdVBoostLevel1

Voltage boost LEVEL1.

lcdVBoostLevel2

Voltage boost LEVEL2.

lcdVBoostLevel3

Voltage boost LEVEL3.

lcdVBoostLevel4

Voltage boost LEVEL4.

lcdVBoostLevel5

Voltage boost LEVEL5.

lcdVBoostLevel6

Voltage boost LEVEL6.

lcdVBoostLevel7

Voltage boost LEVEL7.


Definition at line 149 of file platform/emlib/inc/em_lcd.h

LCD_FCPreScale_TypeDef#

LCD_FCPreScale_TypeDef

Frame Counter Clock Prescaler, FC-CLK = FrameRate (Hz) / this factor.

Enumerator
lcdFCPrescDiv1

Prescale Div 1.

lcdFCPrescDiv2

Prescale Div 2.

lcdFCPrescDiv4

Prescale Div 4.

lcdFCPrescDiv8

Prescale Div 8.


Definition at line 176 of file platform/emlib/inc/em_lcd.h

LCD_SegmentRange_TypeDef#

LCD_SegmentRange_TypeDef

Segment selection.

Enumerator
lcdSegment0_3

Select segment lines 0 to 3.

lcdSegment4_7

Select segment lines 4 to 7.

lcdSegment8_11

Select segment lines 8 to 11.

lcdSegment12_15

Select segment lines 12 to 15.

lcdSegment16_19

Select segment lines 16 to 19.

lcdSegment20_23

Select segment lines 20 to 23.

lcdSegment24_27

Select segment lines 24 to 27.

lcdSegment28_31

Select segment lines 28 to 31.

lcdSegment32_35

Select segment lines 32 to 35.

lcdSegment36_39

Select segment lines 36 to 39.

lcdSegmentAll

Select all segment lines.


Definition at line 200 of file platform/emlib/inc/em_lcd.h

LCD_UpdateCtrl_TypeDef#

LCD_UpdateCtrl_TypeDef

Update Data Control.

Enumerator
lcdUpdateCtrlRegular

Regular update, data transfer done immediately.

lcdUpdateCtrlFCEvent

Data transfer done at Frame Counter event.

lcdUpdateCtrlFrameStart

Data transfer done at Frame Start.


Definition at line 232 of file platform/emlib/inc/em_lcd.h

LCD_AnimShift_TypeDef#

LCD_AnimShift_TypeDef

Animation Shift operation; none, left or right.

Enumerator
lcdAnimShiftNone

No shift.

lcdAnimShiftLeft

Shift segment bits left.

lcdAnimShiftRight

Shift segment bits right.


Definition at line 284 of file platform/emlib/inc/em_lcd.h

LCD_AnimLogic_TypeDef#

LCD_AnimLogic_TypeDef

Animation Logic Control, how AReg and BReg should be combined.

Enumerator
lcdAnimLogicAnd

Use bitwise logic AND to mix animation register A (AREGA) and B (AREGB).

lcdAnimLogicOr

Use bitwise logic OR to mix animation register A (AREGA) and B (AREGB).


Definition at line 294 of file platform/emlib/inc/em_lcd.h

LCD_AnimLoc_TypeDef#

LCD_AnimLoc_TypeDef

Animation Location, set the LCD segments which animation applies to.

Enumerator
lcdAnimLocSeg0To7

Animation appears on segments 0 to 7.

lcdAnimLocSeg8To15

Animation appears on segments 8 to 15.


Definition at line 303 of file platform/emlib/inc/em_lcd.h

Function Documentation#

LCD_Init#

void LCD_Init (const LCD_Init_TypeDef *lcdInit)

Initialize the Liquid Crystal Display (LCD) controller.

Parameters
[in]lcdInit

A pointer to the initialization structure which configures the LCD controller.

Configures the LCD controller. You must enable it afterwards, potentially configuring Frame Control and interrupts first according to requirements.


Definition at line 66 of file platform/emlib/src/em_lcd.c

LCD_VLCDSelect#

void LCD_VLCDSelect (LCD_VLCDSel_TypeDef vlcd)

Select a source for VLCD.

Parameters
[in]vlcd

Select a source for the VLCD voltage.


Definition at line 144 of file platform/emlib/src/em_lcd.c

LCD_UpdateCtrl#

void LCD_UpdateCtrl (LCD_UpdateCtrl_TypeDef ud)

Configure Update Control.

Parameters
[in]ud

Configures the LCD update method.


Definition at line 172 of file platform/emlib/src/em_lcd.c

LCD_FrameCountInit#

void LCD_FrameCountInit (const LCD_FrameCountInit_TypeDef *fcInit)

Initialize the LCD Frame Counter.

Parameters
[in]fcInit

A pointer to the Frame Counter initialization structure.


Definition at line 191 of file platform/emlib/src/em_lcd.c

LCD_AnimInit#

void LCD_AnimInit (const LCD_AnimInit_TypeDef *animInit)

Configure the LCD controller Animation feature.

Parameters
[in]animInit

A pointer to the LCD Animation initialization structure.


Definition at line 235 of file platform/emlib/src/em_lcd.c

LCD_SegmentRangeEnable#

void LCD_SegmentRangeEnable (LCD_SegmentRange_TypeDef segmentRange, bool enable)

Enables updating this range of LCD segment lines.

Parameters
[in]segmentRange

A range of 4 LCD segment lines to enable or disable for all enabled COM lines.

[in]enable

Boolean true to enable segment updates, false to disable updates.


Definition at line 280 of file platform/emlib/src/em_lcd.c

LCD_SegmentSet#

void LCD_SegmentSet (int com, int bit, bool enable)

Turn on or clear a segment.

Parameters
[in]com

A COM line to change.

[in]bit

A bit index indicating which field to change.

[in]enable

True will set segment, false will clear segment.

Note

  • For the Gecko Family, the maximum configuration is (COM-lines x Segment-Lines) 4x40. For the Tiny Gecko Family, the maximum configuration is 8x20 or 4x24. For the Giant Gecko Family, the maximum configuration is 8x36 or 4x40. For the Series 2 Family, the maximum configuration is 4x20. For the Series 2 xG28, the maximum configuration is 8x24 or 4x28.


Definition at line 386 of file platform/emlib/src/em_lcd.c

LCD_SegmentSetLow#

void LCD_SegmentSetLow (int com, uint32_t mask, uint32_t bits)

Update 0-31 lowest segments on a given COM-line in one operation according to the bit mask.

Parameters
[in]com

Indicates a COM line to update.

[in]mask

A bit mask for segments 0-31.

[in]bits

A bit pattern for segments 0-31.


Definition at line 577 of file platform/emlib/src/em_lcd.c

LCD_SegmentSetHigh#

void LCD_SegmentSetHigh (int com, uint32_t mask, uint32_t bits)

Update the high (32-39) segments on a given COM-line in one operation.

Parameters
[in]com

Indicates a COM line to update.

[in]mask

A bit mask for segments 32-39.

[in]bits

A bit pattern for segments 32-39.


Definition at line 747 of file platform/emlib/src/em_lcd.c

LCD_ContrastSet#

void LCD_ContrastSet (int level)

Configure the contrast level on the LCD panel.

Parameters
[in]level

The contrast level in range 0-63.


Definition at line 828 of file platform/emlib/src/em_lcd.c

LCD_BiasSet#

void LCD_BiasSet (LCD_Bias_TypeDef bias)

Configure the bias level on the LCD panel.

Parameters
[in]bias

The bias level.


Definition at line 856 of file platform/emlib/src/em_lcd.c

LCD_VBoostSet#

void LCD_VBoostSet (LCD_VBoostLevel_TypeDef vboost)

Configure voltage booster.

Parameters
[in]vboost

Voltage boost level

The resulting voltage level is described in each part number's data sheet


Definition at line 880 of file platform/emlib/src/em_lcd.c

LCD_BiasSegmentSet#

void LCD_BiasSegmentSet (int segmentLine, int biasLevel)

Configure the bias level for a specific segment line for Direct Segment Control.

Parameters
[in]segmentLine

A segment line number.

[in]biasLevel

The bias configuration level. This value must be within the constraints defined by the LCD_DISPCTRL bias settings. For more information, see the applicable Reference Manual and data sheet.

Note

  • When DSC is active, each configuration takes up 4 bits in the corresponding Segment Registers (SEGD0L/SEGD1H for Series 0 and 1, SEGDx for Series 2) which defines the bias level. For optimal use of this feature, the entire SEGD-registers should be set at once in an optimized routine. Therefore, this function shows how to correctly configure the bias levels and should be used with care.


Definition at line 908 of file platform/emlib/src/em_lcd.c

LCD_BiasComSet#

void LCD_BiasComSet (int comLine, int biasLevel)

Configure the bias level for a specific segment line.

Parameters
[in]comLine

A COM line number, between 0 and 7 for Series 0 and 1. For Series 2, max is LCD_COM_NUM, defined in device-specific headers.

[in]biasLevel

The bias configuration level. This value must be within the constraints defined by the LCD_DISPCTRL bias settings. For more information, see the appropriate Reference Manual and data sheet.

Note

  • When DSC is active, each configuration takes up 4 bits in the corresponding Segment Registers (SEGD4L/SEGD4H for Series 0 and 1, AREGA/AREGB for Series 2) which defines bias level. For optimal use of this feature, the entire register set should be set at once in a optimized routine. Therefore, this function shows how to correctly configure the bias levels and should be used with care.


Definition at line 1054 of file platform/emlib/src/em_lcd.c

LCD_Enable#

void LCD_Enable (bool enable)

Enable or disable LCD controller.

Parameters
[in]enable

If true, enables LCD controller with current configuration. If false, disables LCD controller. Enable CMU clock for LCD for correct operation.


Definition at line 522 of file platform/emlib/inc/em_lcd.h

LCD_AnimEnable#

void LCD_AnimEnable (bool enable)

Enable or disable LCD Animation feature.

Parameters
[in]enable

Boolean true enables animation, false disables animation.


Definition at line 576 of file platform/emlib/inc/em_lcd.h

LCD_BlinkEnable#

void LCD_BlinkEnable (bool enable)

Enable or disable the LCD blink.

Parameters
[in]enable

Boolean true enables blink, false disables blink.


Definition at line 600 of file platform/emlib/inc/em_lcd.h

LCD_BlankEnable#

void LCD_BlankEnable (bool enable)

Disable all segments while keeping segment state.

Parameters
[in]enable

Boolean true clears all segments, boolean false restores all segment lines.


Definition at line 624 of file platform/emlib/inc/em_lcd.h

LCD_FrameCountEnable#

void LCD_FrameCountEnable (bool enable)

Enable or disable LCD Frame counter.

Parameters
[in]enable

Boolean true enables frame counter, false disables frame counter.


Definition at line 648 of file platform/emlib/inc/em_lcd.h

LCD_AnimState#

int LCD_AnimState (void)

Return the current animation state.

Parameters
N/A

Returns

  • Animation state, in range 0-15.


Definition at line 698 of file platform/emlib/inc/em_lcd.h

LCD_BlinkState#

int LCD_BlinkState (void)

Return the current blink state.

Parameters
N/A

Returns

  • Return value is 1 if segments are enabled, 0 if disabled.


Definition at line 710 of file platform/emlib/inc/em_lcd.h

LCD_FreezeEnable#

void LCD_FreezeEnable (bool enable)

When set, LCD registers will not be updated until cleared.

Parameters
[in]enable

When enable is true, update is stopped; when false, all registers are updated.


Definition at line 724 of file platform/emlib/inc/em_lcd.h

LCD_SyncBusyGet#

uint32_t LCD_SyncBusyGet (void)

Return SYNCBUSY bits, indicating which registers have pending updates.

Parameters
N/A

Returns

  • Bit fields for LCD registers that have pending updates.


Definition at line 742 of file platform/emlib/inc/em_lcd.h

LCD_SyncBusyDelay#

void LCD_SyncBusyDelay (uint32_t flags)

Poll LCD SYNCBUSY flags until the flag has been cleared.

Parameters
[in]flags

Bit fields for LCD registers that will be updated before we continue.


Definition at line 756 of file platform/emlib/inc/em_lcd.h

LCD_IntGet#

uint32_t LCD_IntGet (void)

Get pending LCD interrupt flags.

Parameters
N/A

Returns

  • Pending LCD interrupt sources. Returns a set of interrupt flags OR-ed together for multiple interrupt sources in the LCD module (LCD_IFS_nnn).


Definition at line 827 of file platform/emlib/inc/em_lcd.h

LCD_IntGetEnabled#

uint32_t LCD_IntGetEnabled (void)

Get enabled and pending LCD interrupt flags.

Parameters
N/A

Useful for handling more interrupt sources in the same interrupt handler.

Note

  • Event bits are not cleared by the use of this function.

Returns

  • Pending and enabled LCD interrupt sources. Return value is the bitwise AND combination of

    • the OR combination of enabled interrupt sources in LCD_IEN_nnn register (LCD_IEN_nnn) and

    • the bitwise OR combination of valid interrupt flags of LCD module (LCD_IF_nnn).


Definition at line 850 of file platform/emlib/inc/em_lcd.h

LCD_IntSet#

void LCD_IntSet (uint32_t flags)

Set one or more pending LCD interrupts from SW.

Parameters
[in]flags

LCD interrupt sources to set to pending. Use a set of interrupt flags OR-ed together to set multiple interrupt sources for the LCD module (LCD_IFS_nnn).


Definition at line 871 of file platform/emlib/inc/em_lcd.h

LCD_IntEnable#

void LCD_IntEnable (uint32_t flags)

Enable LCD interrupts.

Parameters
[in]flags

LCD interrupt sources to enable. Use a set of interrupt flags OR-ed together to set multiple interrupt sources for LCD module (LCD_IFS_nnn).


Definition at line 893 of file platform/emlib/inc/em_lcd.h

LCD_IntDisable#

void LCD_IntDisable (uint32_t flags)

Disable LCD interrupts.

Parameters
[in]flags

LCD interrupt sources to disable. Use a set of interrupt flags OR-ed together to disable multiple interrupt sources for LCD module (LCD_IFS_nnn).


Definition at line 911 of file platform/emlib/inc/em_lcd.h

LCD_IntClear#

void LCD_IntClear (uint32_t flags)

Clear one or more interrupt flags.

Parameters
[in]flags

LCD interrupt sources to clear. Use a set of interrupt flags OR-ed together to clear multiple interrupt sources for LCD module (LCD_IFS_nnn).


Definition at line 929 of file platform/emlib/inc/em_lcd.h

LCD_DSCEnable#

void LCD_DSCEnable (bool enable)

Enable or disable LCD Direct Segment Control.

Parameters
[in]enable

If true, enables LCD controller Direct Segment Control Segment and COM line bias levels need to be set explicitly with LCD_BiasSegmentSet() and LCD_BiasComSet() function calls respectively.


Definition at line 952 of file platform/emlib/inc/em_lcd.h

Macro Definition Documentation#

LCD_DEFAULT_CLOCK_PRESCALER#

#define LCD_DEFAULT_CLOCK_PRESCALER
Value:
64

Default Clock Prescaler.


Definition at line 54 of file platform/emlib/inc/em_lcd.h

LCD_DEFAULT_FRAME_RATE_DIV#

#define LCD_DEFAULT_FRAME_RATE_DIV
Value:
4

Default LCD Frame Rate Divisor.


Definition at line 56 of file platform/emlib/inc/em_lcd.h

LCD_DEFAULT_CONTRAST#

#define LCD_DEFAULT_CONTRAST
Value:
15

Default LCD Contrast.


Definition at line 58 of file platform/emlib/inc/em_lcd.h

LCD_INIT_DEFAULT#

#define LCD_INIT_DEFAULT
Value:
{ \
true, \
lcdMuxQuadruplex, \
lcdBiasOneThird, \
lcdWaveLowPower, \
lcdVLCDSelVDD, \
lcdConConfVLCD, \
}

Default configuration for LCD initialization structure, enables 160 segments.


Definition at line 404 of file platform/emlib/inc/em_lcd.h

LCD_FRAME_COUNTER_VAL_MAX#

#define LCD_FRAME_COUNTER_VAL_MAX
Value:
64

Frame counter uses a maximum of 5 bits (FCTOP[5:0]).


Definition at line 51 of file platform/emlib/src/em_lcd.c