LCD - Liquid Crystal Display#

LCD_Mux_TypeDef#

LCD_Mux_TypeDef

MUX setting.

LCD_Wave_TypeDef#

LCD_Wave_TypeDef

Wave type.

LCD_Bias_TypeDef#

LCD_Bias_TypeDef

Bias setting.

LCD_Mode_Typedef#

LCD_Mode_Typedef

Contrast Configuration.

Mode of operation.

LCD_FCPreScale_TypeDef#

LCD_FCPreScale_TypeDef

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

LCD_UpdateCtrl_TypeDef#

LCD_UpdateCtrl_TypeDef

Update Data Control.

LCD_LoadAddr_TypeDef#

LCD_LoadAddr_TypeDef

Auto Load address which will start the synchronization from CLK_BUS to CLK_PER.

LCD_AnimShift_TypeDef#

LCD_AnimShift_TypeDef

Animation Shift operation; none, left or right.

LCD_AnimLogic_TypeDef#

LCD_AnimLogic_TypeDef

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

LCD_AnimLoc_TypeDef#

LCD_AnimLoc_TypeDef

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

LCD_ChargeRedistribution_TypeDef#

LCD_ChargeRedistribution_TypeDef

Charge redistribution control.

LCD_DmaMode_Typedef#

LCD_DmaMode_Typedef

DMA mode of operation.

LCD_Init#

void LCD_Init (const LCD_Init_TypeDef *lcdInit)

Initialize the Liquid Crystal Display (LCD) controller.

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

LCD_UpdateCtrl#

void LCD_UpdateCtrl (LCD_UpdateCtrl_TypeDef ud)

Configure Update Control.

LCD_FrameCountInit#

void LCD_FrameCountInit (const LCD_FrameCountInit_TypeDef *fcInit)

Initialize the LCD Frame Counter.

LCD_AnimInit#

void LCD_AnimInit (const LCD_AnimInit_TypeDef *animInit)

Configure the LCD controller Animation feature.

LCD_SegmentEnable#

void LCD_SegmentEnable (uint32_t seg_nbr, bool enable)

Enables a given LCD segment line.

LCD_ComEnable#

void LCD_ComEnable (uint8_t com, bool enable)

Enables a given LCD COM line.

LCD_DmaModeSet#

void LCD_DmaModeSet (LCD_DmaMode_Typedef mode)

Set a given DMA mode operation.

LCD_SegmentSet#

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

Turn on or clear a 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.

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.

LCD_ContrastSet#

void LCD_ContrastSet (int level)

Configure the contrast level on the LCD panel.

LCD_BiasSet#

void LCD_BiasSet (LCD_Bias_TypeDef bias)

Configure the bias level on the LCD panel.

LCD_BiasSegmentSet#

void LCD_BiasSegmentSet (int segmentLine, int biasLevel)

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

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.

LCD_BiasComSet#

void LCD_BiasComSet (int comLine, int biasLevel)

Configure the bias level for a specific segment line.

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.

LCD_ModeSet#

void LCD_ModeSet (LCD_Mode_Typedef mode)

Configure the mode for the LCD panel.

LCD_ChargeRedistributionCyclesSet#

void LCD_ChargeRedistributionCyclesSet (uint8_t cycles)

Configure the charge redistribution cycles for the LCD panel.

LCD_LoadBusyWait#

void LCD_LoadBusyWait (void)

Wait for load synchronization completion.

Note

• Doing any writes to HV registers will not go through and will cause a bus fault.

LCD_ReadyWait#

void LCD_ReadyWait (void)

Wait for the LCD to complete resetting or disabling procedure.

LCD_Enable#

void LCD_Enable (bool enable)

Enable or disable LCD controller.

LCD_Reset#

void LCD_Reset (void)

Reset the LCD.

LCD_AnimEnable#

void LCD_AnimEnable (bool enable)

Enable or disable LCD Animation feature.

LCD_BlinkEnable#

void LCD_BlinkEnable (bool enable)

Enable or disable the LCD blink.

LCD_BlankEnable#

void LCD_BlankEnable (bool enable)

Disable all segments while keeping segment state.

LCD_FrameCountEnable#

void LCD_FrameCountEnable (bool enable)

Enable or disable LCD Frame counter.

LCD_DisplayCountEnable#

void LCD_DisplayCountEnable (bool enable)

Enable or disable the LCD Display counter.

LCD_AnimState#

int LCD_AnimState (void)

Return the current animation state.

Returns

• Animation state, in range 0-15.

LCD_BlinkState#

int LCD_BlinkState (void)

Return the current blink state.

Returns

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

LCD_SyncStart#

void LCD_SyncStart (bool autoload, LCD_LoadAddr_TypeDef load_addr)

Start the synchronization process.

LCD_SyncStop#

void LCD_SyncStop (bool autoload)

Stop the synchronization process.

LCD_IntGet#

uint32_t LCD_IntGet (void)

Get pending LCD interrupt flags.

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).

LCD_IntGetEnabled#

uint32_t LCD_IntGetEnabled (void)

Get enabled and pending LCD interrupt flags.

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).

LCD_IntSet#

void LCD_IntSet (uint32_t flags)

Set one or more pending LCD interrupts from SW.

LCD_IntEnable#

void LCD_IntEnable (uint32_t flags)

Enable LCD interrupts.

LCD_IntDisable#

void LCD_IntDisable (uint32_t flags)

Disable LCD interrupts.

LCD_IntClear#

void LCD_IntClear (uint32_t flags)

Clear one or more interrupt flags.

LCD_DSCEnable#

void LCD_DSCEnable (bool enable)

Enable or disable LCD Direct Segment Control.

LCD_DEFAULT_CLOCK_PRESCALER#

#define LCD_DEFAULT_CLOCK_PRESCALER

64

Default Clock Prescaler.

LCD_DEFAULT_FRAME_RATE_DIV#

#define LCD_DEFAULT_FRAME_RATE_DIV

4

Default LCD Frame Rate Divisor.

LCD_DEFAULT_CONTRAST#

#define LCD_DEFAULT_CONTRAST

15

Default LCD Contrast.

LCD_COM_LINES_MAX#

#define LCD_COM_LINES_MAX

(LCD_COM_NUM + LCD_SEGASCOM_NUM)

Maximum common lines of LCD.

LCD_SEGMENT_LINES_MAX#

#define LCD_SEGMENT_LINES_MAX

LCD_SEG_NUM

Maximum segment lines of LCD.

LCD_INIT_DEFAULT#

#define LCD_INIT_DEFAULT

Default configuration for LCD initialization structure, enables 160 segments.

LCD_FRAME_COUNTER_VAL_MAX#

#define LCD_FRAME_COUNTER_VAL_MAX

64

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