Detailed Description

Functions
uint32_t	CAPLESENSE_getNormalizedVal (uint8_t channel)
	Get the current normalized channelValue for a channel. More...

uint8_t	CAPLESENSE_getSegmentChannel (uint8_t capSegment)
	Get the channelValue for a sensor segment. More...

int32_t	CAPLESENSE_getSliderPosition (void)
	Get the position of the slider. More...

uint32_t	CAPLESENSE_getVal (uint8_t channel)
	Get the current channelValue for a channel. More...

void	CAPLESENSE_Init (bool sleep)
	Initializes the capacative sense system without LESENSE. More...

void	CAPLESENSE_setupCallbacks (void(scanCb)(void), void(chCb)(void))
	LESENSE callback setup. More...

void	CAPLESENSE_setupLESENSE (bool sleep)
	Setup the LESENSE for capavitive sensing. More...

void	CAPLESENSE_Sleep (void)
	Send the capacative sense system to sleep mode.

uint32_t	CAPSENSE_getNormalizedVal (uint8_t channel)
	Get the current normalized channelValue for a channel. More...

bool	CAPSENSE_getPressed (uint8_t channel)
	Get the state of the Gecko Button. More...

int32_t	CAPSENSE_getSliderPosition (void)
	Get the position of the slider. More...

uint32_t	CAPSENSE_getVal (uint8_t channel)
	Get the current channelValue for a channel. More...

void	CAPSENSE_Init (void)
	Initializes the capacitive sense system. More...

void	CAPSENSE_Sense (void)
	This function iterates through all the capsensors and reads and initiates a reading. Uses EM1 while waiting for the result from each sensor.

Function Documentation

uint32_t CAPLESENSE_getNormalizedVal ( uint8_t channel )

Get the current normalized channelValue for a channel.

Parameters

channel The channel.

Returns: The channel value in range (0-256).

Definition at line 455 of file caplesense.c.

References channelMaxValues, and channelValues.

uint8_t CAPLESENSE_getSegmentChannel ( uint8_t capSegment )

Get the channelValue for a sensor segment.

Parameters

capSegment

Returns: channel

Definition at line 416 of file caplesense.c.

int32_t CAPLESENSE_getSliderPosition ( void )

Get the position of the slider.

Returns: The position of the slider if it can be determined, -1 otherwise.

Definition at line 468 of file caplesense.c.

References channelMaxValues, and channelValues.

uint32_t CAPLESENSE_getVal ( uint8_t channel )

Get the current channelValue for a channel.

Parameters

channel The channel.

Returns: The channelValue.

Definition at line 445 of file caplesense.c.

References channelValues.

void CAPLESENSE_Init ( bool sleep )

Initializes the capacative sense system without LESENSE.

Parameters

sleep If true, go into sleep mode.

Definition at line 536 of file caplesense.c.

References CAPLESENSE_setupACMP(), CAPLESENSE_setupCMU(), CAPLESENSE_setupGPIO(), CAPLESENSE_setupLESENSE(), CORE_DECLARE_IRQ_STATE, CORE_ENTER_ATOMIC, and CORE_EXIT_ATOMIC.

void CAPLESENSE_setupCallbacks	(	void(*)(void)	scanCb,
		void(*)(void)	chCb
	)

LESENSE callback setup.

Parameters

scanCb	Scan callback
chCb	Channel callback

Definition at line 347 of file caplesense.c.

References lesenseChCb, and lesenseScanCb.

void CAPLESENSE_setupLESENSE ( bool sleep )

Setup the LESENSE for capavitive sensing.

Parameters

sleep If true, go into sleep mode.

Definition at line 171 of file caplesense.c.

References channelsInUse.

Referenced by CAPLESENSE_Init().

uint32_t CAPSENSE_getNormalizedVal ( uint8_t channel )

Get the current normalized channelValue for a channel.

Parameters

channel The channel.

Returns: The channel value in range (0-256).

Definition at line 131 of file capsense.c.

References channelMaxValues, and channelValues.

bool CAPSENSE_getPressed ( uint8_t channel )

Get the state of the Gecko Button.

Parameters

channel The channel.

Returns: true if the button is "pressed" false otherwise.

Definition at line 143 of file capsense.c.

References channelMaxValues, and channelValues.

int32_t CAPSENSE_getSliderPosition ( void )

Get the position of the slider.

Returns: The position of the slider if it can be determined, -1 otherwise.

Definition at line 164 of file capsense.c.

References channelMaxValues, and channelValues.

uint32_t CAPSENSE_getVal ( uint8_t channel )

Get the current channelValue for a channel.

Parameters

channel The channel.

Returns: The channelValue.

Definition at line 121 of file capsense.c.

References channelValues.

void CAPSENSE_Init ( void )

Initializes the capacitive sense system.

Capacitive sensing uses two timers: TIMER0 and TIMER1 as well as ACMP. ACMP is set up in cap-sense (oscillator mode). TIMER1 counts the number of pulses generated by ACMP_CAPSENSE. When TIMER0 expires it generates an interrupt. The number of pulses counted by TIMER1 is then stored in channelValues

Definition at line 290 of file capsense.c.

References ACMP_CAPSENSE_INIT_DEFAULT, ACMP_CapsenseInit(), CMU, CMU_ClockEnable(), cmuClock_HFPER, cmuClock_PRS, cmuClock_TIMER0, cmuClock_TIMER1, PRS, PRS_CH_CTRL_EDSEL_POSEDGE, TIMER0, TIMER0_IRQn, TIMER1, TIMER_CC_CTRL_ICEDGE_BOTH, TIMER_CC_CTRL_ICEVCTRL_RISING, TIMER_CC_CTRL_INSEL_PRS, TIMER_CC_CTRL_MODE_INPUTCAPTURE, TIMER_CC_CTRL_PRSSEL_PRSCH0, TIMER_CTRL_CLKSEL_CC1, TIMER_CTRL_PRESC_DIV1024, TIMER_CTRL_PRESC_DIV512, and TIMER_IEN_OF.

Detailed Description

Functions

Function Documentation