Interface.

Analog Comparator Interface is able to control a number of Analog Comparators (AC) with identical behavior.

Data Structures
struct	acifb_channel_t
	AC channel configuration. More...

struct	acifb_t
	ACIFB configuration. More...

struct	acifb_window_t
	AC Window configuration. More...

Macros
#define	ACIFB_POLL_TIMEOUT 10000
	The timeguard used for polling. More...

Functions
void	acifb_channels_setup (volatile avr32_acifb_t acifb, const acifb_channel_t ac_chan, uint32_t nb_chan)
	Configure a set of AC channels in normal mode. More...

static void	acifb_clear_all_interrupt_flags (volatile avr32_acifb_t *acifb)
	Clear ACIFB all interrupt flags. More...

static void	acifb_clear_comparison_interrupt_flag (volatile avr32_acifb_t *acifb, uint8_t ac_channel)
	Clear ACIFB comparison complete interrupt flags. More...

static void	acifb_clear_interrupt_flag (volatile avr32_acifb_t *acifb, uint32_t interrupt_mask)
	Clear ACIFB interrupt flags. More...

static void	acifb_clear_startup_interrupt_flag (volatile avr32_acifb_t *acifb, uint8_t ac_channel)
	Clear ACIFB startup interrupt flags. More...

static void	acifb_clear_window_interrupt_flag (volatile avr32_acifb_t *acifb, uint8_t ac_combination)
	Clear ACIFB comparison window mode interrupt flags. More...

static void	acifb_disable (volatile avr32_acifb_t *acifb)
	Disable ACIFB. More...

static void	acifb_disable_all_interrupts (volatile avr32_acifb_t *acifb)
	Disable all ACIFB interrupts. More...

static void	acifb_disable_comparison_interrupt (volatile avr32_acifb_t *acifb, uint8_t ac_channel)
	Disable ACIFB comparison complete interrupt. More...

static void	acifb_disable_interrupt (volatile avr32_acifb_t *acifb, uint32_t interrupt_mask)
	Disable ACIFB interrupts. More...

static void	acifb_disable_startup_interrupt (volatile avr32_acifb_t *acifb, uint8_t ac_channel)
	Disable ACIFB startup interrupt. More...

static void	acifb_disable_window_interrupt (volatile avr32_acifb_t *acifb, uint8_t ac_combination)
	Disable ACIFB comparison window mode interrupt. More...

static void	acifb_enable_comparison_interrupt (volatile avr32_acifb_t *acifb, uint8_t ac_channel)
	Enable ACIFB comparison complete interrupt. More...

static void	acifb_enable_interrupt (volatile avr32_acifb_t *acifb, uint32_t interrupt_mask)
	Enable ACIFB interrupts. More...

static void	acifb_enable_startup_interrupt (volatile avr32_acifb_t *acifb, uint8_t ac_channel)
	Enable ACIFB startup interrupt. More...

static void	acifb_enable_window_interrupt (volatile avr32_acifb_t *acifb, uint8_t ac_combination)
	Enable ACIFB comparison window mode interrupt. More...

void	acifb_setup_and_enable (volatile avr32_acifb_t acifb, const acifb_t ac)
	Configure and enable the ACIFB module. More...

static void	acifb_test_event_trigger_single_comparison (volatile avr32_acifb_t *acifb)
	Test event trigger for single analog comparison. More...

static void	acifb_user_trigger_single_comparison (volatile avr32_acifb_t *acifb)
	Trigger a Analog comparison. More...

bool	acifb_wait_channels_ready (volatile avr32_acifb_t *acifb, const uint32_t acrdy_mask)
	Wait for channels to be ready. More...

void	acifb_windows_setup (volatile avr32_acifb_t acifb, const acifb_window_t ac_window, uint32_t nb_combinations)
	Configure a set of AC channels in Window mode. More...

#define ACIFB_POLL_TIMEOUT 10000

The timeguard used for polling.

Referenced by acifb_wait_channels_ready().

void acifb_channels_setup	(	volatile avr32_acifb_t *	acifb,
		const acifb_channel_t *	ac_chan,
		uint32_t	nb_chan
	)

Configure a set of AC channels in normal mode.

Parameters

acifb	Base address of the ACIFB
ac_chan	Array of channels configuration [INPUT]
nb_chan	The size of the ac_chan[] array [INPUT]

References acifb_channel_t::event_negative, acifb_channel_t::filter_len, acifb_channel_t::hysteresis_value, acifb_channel_t::interrupt_settings, acifb_channel_t::mode, acifb_channel_t::negative_input, and acifb_channel_t::positive_input.

Referenced by ac_init().

static void acifb_clear_all_interrupt_flags ( volatile avr32_acifb_t * acifb )

inlinestatic

Clear ACIFB all interrupt flags.

Parameters

acifb Base address of the ACIFB module

static void acifb_clear_comparison_interrupt_flag	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_channel
	)

inlinestatic

Clear ACIFB comparison complete interrupt flags.

Parameters

acifb	Base address of the ACIFB module
ac_channel	ACIFB Channel Used

Referenced by ISR().

static void acifb_clear_interrupt_flag	(	volatile avr32_acifb_t *	acifb,
		uint32_t	interrupt_mask
	)

inlinestatic

Clear ACIFB interrupt flags.

Parameters

*acifb	Base address of the ACIFB module
interrupt_mask	Bitmask of interrupts to clear

static void acifb_clear_startup_interrupt_flag	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_channel
	)

inlinestatic

Clear ACIFB startup interrupt flags.

Parameters

acifb	Base address of the ACIFB module
ac_channel	ACIFB Channel Used

static void acifb_clear_window_interrupt_flag	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_combination
	)

inlinestatic

Clear ACIFB comparison window mode interrupt flags.

Parameters

acifb	Base address of the ACIFB module
ac_combination	ACIFB Channel combination Used

Note: ACPn, ACNn, ACP(n+1), ACN(n+1) -> nth combination

static void acifb_disable ( volatile avr32_acifb_t * acifb )

inlinestatic

Disable ACIFB.

Parameters

acifb Base address of the ACIFB module

static void acifb_disable_all_interrupts ( volatile avr32_acifb_t * acifb )

inlinestatic

Disable all ACIFB interrupts.

Parameters

acifb Base address of the ACIFB module

static void acifb_disable_comparison_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_channel
	)

inlinestatic

Disable ACIFB comparison complete interrupt.

Parameters

*acifb	Base address of the ACIFB module
ac_channel	ACIFB Channel Used

static void acifb_disable_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint32_t	interrupt_mask
	)

inlinestatic

Disable ACIFB interrupts.

Parameters

acifb	Base address of the ACIFB module
interrupt_mask	Bitmask of interrupts to disable

static void acifb_disable_startup_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_channel
	)

inlinestatic

Disable ACIFB startup interrupt.

Parameters

acifb	Base address of the ACIFB module
ac_channel	ACIFB Channel Used

static void acifb_disable_window_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_combination
	)

inlinestatic

Disable ACIFB comparison window mode interrupt.

Parameters

acifb	Base address of the ACIFB module
ac_combination	ACIFB Channel combination Used

Note: ACPn, ACNn, ACP(n+1), ACN(n+1) -> nth combination

static void acifb_enable_comparison_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_channel
	)

inlinestatic

Enable ACIFB comparison complete interrupt.

Parameters

acifb	Base address of the ACIFB module
ac_channel	ACIFB Channel Used

Referenced by ac_init().

static void acifb_enable_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint32_t	interrupt_mask
	)

inlinestatic

Enable ACIFB interrupts.

Parameters

acifb	Base address of the ACIFB module
interrupt_mask	Bitmask of interrupts to enable

static void acifb_enable_startup_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_channel
	)

inlinestatic

Enable ACIFB startup interrupt.

Parameters

acifb	Base address of the ACIFB module
ac_channel	ACIFB Channel Used

static void acifb_enable_window_interrupt	(	volatile avr32_acifb_t *	acifb,
		uint8_t	ac_combination
	)

inlinestatic

Enable ACIFB comparison window mode interrupt.

Parameters

acifb	Base address of the ACIFB module
ac_combination	ACIFB Channel combination Used

Note: ACPn, ACNn, ACP(n+1), ACN(n+1) -> nth combination

void acifb_setup_and_enable	(	volatile avr32_acifb_t *	acifb,
		const acifb_t *	ac
	)

Configure and enable the ACIFB module.

Parameters

acifb	Base address of the ACIFB
ac	ACIFB configuration [INPUT]

References acifb_t::actest, acifb_t::eventen, and acifb_t::sut.

Referenced by ac_init().

static void acifb_test_event_trigger_single_comparison ( volatile avr32_acifb_t * acifb )

inlinestatic

Test event trigger for single analog comparison.

Parameters

acifb Base address of the ACIFB module

static void acifb_user_trigger_single_comparison ( volatile avr32_acifb_t * acifb )

inlinestatic

Trigger a Analog comparison.

Parameters

acifb Base address of the ACIFB module

bool acifb_wait_channels_ready	(	volatile avr32_acifb_t *	acifb,
		const uint32_t	acrdy_mask
	)

Wait for channels to be ready.

Parameters

acifb	Base address of the ACIFB
acrdy_mask	Mask of several AVR32_ACIFB_SR_ACRDYn_MASK [INPUT]

Return values

false	Timeout on ACIFB configuration
true	ACIFB channels are ready

References ACIFB_POLL_TIMEOUT.

void acifb_windows_setup	(	volatile avr32_acifb_t *	acifb,
		const acifb_window_t *	ac_window,
		uint32_t	nb_combinations
	)

Configure a set of AC channels in Window mode.

Parameters

acifb	Base address of the ACIFB
ac_window	Array of Windows configuration [INPUT]
nb_combinations	The size of the ac_window[] array [INPUT]

References acifb_window_t::interrupt_settings, acifb_window_t::window_event, and acifb_window_t::window_mode.

Microchip® Advanced Software Framework

Data Structures

Macros

Functions