EIC allows pins to be configured as external interrupts.

Data Structures
struct	eic_options_t
	Configuration parameters of the EIC module. More...

Functions
void	eic_disable_line (volatile avr32_eic_t *eic, uint32_t line_number)
	Disable the EIC driver. More...

void	eic_disable_lines (volatile avr32_eic_t *eic, uint32_t mask_lines)
	Disable the EIC driver. More...

void	eic_enable_line (volatile avr32_eic_t *eic, uint32_t line_number)
	Enable the EIC driver. More...

void	eic_enable_lines (volatile avr32_eic_t *eic, uint32_t mask_lines)
	Enable the EIC driver. More...

void	eic_init (volatile avr32_eic_t eic, const eic_options_t opt, uint32_t nb_lines)
	Init the EIC driver. More...

bool	eic_is_line_enabled (volatile avr32_eic_t *eic, uint32_t line_number)
	Tells whether an EIC line is enabled. More...

External Interrupt lines
#define	EXT_INT0 AVR32_EIC_INT0
	Line 0. More...

#define	EXT_INT1 AVR32_EIC_INT1
	Line 1. More...

#define	EXT_INT2 AVR32_EIC_INT2
	Line 2. More...

#define	EXT_INT3 AVR32_EIC_INT3
	Line 3. More...

#define	EXT_INT4 AVR32_EIC_INT4
	Line 4. More...

#define	EXT_INT5 AVR32_EIC_INT5
	Line 5. More...

#define	EXT_INT6 AVR32_EIC_INT6
	Line 6. More...

#define	EXT_INT7 AVR32_EIC_INT7
	Line 7. More...

#define	EXT_NMI AVR32_EIC_NMI
	Line 8. More...

Mode Trigger Options
#define	EIC_MODE_EDGE_TRIGGERED AVR32_EIC_EDGE_IRQ

#define	EIC_MODE_LEVEL_TRIGGERED AVR32_EIC_LEVEL_IRQ

Edge level Options
#define	EIC_EDGE_FALLING_EDGE AVR32_EIC_FALLING_EDGE

#define	EIC_EDGE_RISING_EDGE AVR32_EIC_RISING_EDGE

Level Options
#define	EIC_LEVEL_LOW_LEVEL AVR32_EIC_LOW_LEVEL

#define	EIC_LEVEL_HIGH_LEVEL AVR32_EIC_HIGH_LEVEL

Filter Options
#define	EIC_FILTER_ENABLED AVR32_EIC_FILTER_ON

#define	EIC_FILTER_DISABLED AVR32_EIC_FILTER_OFF

Synch Mode Options
#define	EIC_SYNCH_MODE AVR32_EIC_SYNC

#define	EIC_ASYNCH_MODE AVR32_EIC_USE_ASYNC

Interrupt Control Functions
void	eic_enable_interrupt_lines (volatile avr32_eic_t *eic, uint32_t mask_lines)
	Enable the interrupt feature of the EIC. More...

void	eic_enable_interrupt_line (volatile avr32_eic_t *eic, uint32_t line_number)
	Enable the interrupt feature of the EIC. More...

void	eic_disable_interrupt_lines (volatile avr32_eic_t *eic, uint32_t mask_lines)
	Disable the interrupt feature of the EIC. More...

void	eic_disable_interrupt_line (volatile avr32_eic_t *eic, uint32_t line_number)
	Disable the interrupt feature of the EIC. More...

bool	eic_is_interrupt_line_enabled (volatile avr32_eic_t *eic, uint32_t line_number)
	Tells whether an EIC interrupt line is enabled. More...

void	eic_clear_interrupt_lines (volatile avr32_eic_t *eic, uint32_t mask_lines)
	Clear the interrupt flag. Call this function once you've handled the interrupt. More...

void	eic_clear_interrupt_line (volatile avr32_eic_t *eic, uint32_t line_number)
	Clear the interrupt flag. Call this function once you've handled the interrupt. More...

bool	eic_is_interrupt_line_pending (volatile avr32_eic_t *eic, uint32_t line_number)
	Tells whether an EIC interrupt line is pending. More...

void	eic_enable_interrupt_scan (volatile avr32_eic_t *eic, uint32_t presc)
	Enable the interrupt scan feature of the EIC. More...

void	eic_disable_interrupt_scan (volatile avr32_eic_t *eic)
	Disable the interrupt scan feature of the EIC. More...

uint32_t	eic_get_interrupt_pad_scan (volatile avr32_eic_t *eic)
	Return scan pad number that causes interrupt. More...

#define EIC_ASYNCH_MODE AVR32_EIC_USE_ASYNC

Referenced by ui_enable_asynchronous_interrupt().

#define EIC_EDGE_FALLING_EDGE AVR32_EIC_FALLING_EDGE

#define EIC_EDGE_RISING_EDGE AVR32_EIC_RISING_EDGE

#define EIC_FILTER_DISABLED AVR32_EIC_FILTER_OFF

#define EIC_FILTER_ENABLED AVR32_EIC_FILTER_ON

Referenced by ui_enable_asynchronous_interrupt().

#define EIC_LEVEL_HIGH_LEVEL AVR32_EIC_HIGH_LEVEL

#define EIC_LEVEL_LOW_LEVEL AVR32_EIC_LOW_LEVEL

Referenced by ui_enable_asynchronous_interrupt().

#define EIC_MODE_EDGE_TRIGGERED AVR32_EIC_EDGE_IRQ

#define EIC_MODE_LEVEL_TRIGGERED AVR32_EIC_LEVEL_IRQ

Referenced by ui_enable_asynchronous_interrupt().

#define EIC_SYNCH_MODE AVR32_EIC_SYNC

#define EXT_INT0 AVR32_EIC_INT0

Line 0.

#define EXT_INT1 AVR32_EIC_INT1

Line 1.

#define EXT_INT2 AVR32_EIC_INT2

Line 2.

#define EXT_INT3 AVR32_EIC_INT3

Line 3.

#define EXT_INT4 AVR32_EIC_INT4

Line 4.

#define EXT_INT5 AVR32_EIC_INT5

Line 5.

#define EXT_INT6 AVR32_EIC_INT6

Line 6.

Referenced by ISR(), ui_disable_asynchronous_interrupt(), and ui_enable_asynchronous_interrupt().

#define EXT_INT7 AVR32_EIC_INT7

Line 7.

Referenced by ISR(), ui_disable_asynchronous_interrupt(), and ui_enable_asynchronous_interrupt().

#define EXT_NMI AVR32_EIC_NMI

Line 8.

void eic_clear_interrupt_line	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Clear the interrupt flag. Call this function once you've handled the interrupt.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).
line_number	Line number to clear

References cpu_irq_restore(), and cpu_irq_save().

Referenced by ISR().

void eic_clear_interrupt_lines	(	volatile avr32_eic_t *	eic,
		uint32_t	mask_lines
	)

Clear the interrupt flag. Call this function once you've handled the interrupt.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).
mask_lines	Mask for current selected lines

References cpu_irq_restore(), and cpu_irq_save().

void eic_disable_interrupt_line	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Disable the interrupt feature of the EIC.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).
line_number	Line number to disable

References cpu_irq_restore(), and cpu_irq_save().

void eic_disable_interrupt_lines	(	volatile avr32_eic_t *	eic,
		uint32_t	mask_lines
	)

Disable the interrupt feature of the EIC.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).
mask_lines	Mask for current selected lines

References cpu_irq_restore(), and cpu_irq_save().

void eic_disable_interrupt_scan ( volatile avr32_eic_t * eic )

Disable the interrupt scan feature of the EIC.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).

void eic_disable_line	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Disable the EIC driver.

Parameters

eic	Base address of the EIC module
line_number	Line number to disable

Referenced by ui_disable_asynchronous_interrupt().

void eic_disable_lines	(	volatile avr32_eic_t *	eic,
		uint32_t	mask_lines
	)

Disable the EIC driver.

Parameters

eic	Base address of the EIC module
mask_lines	Mask for current selected lines

void eic_enable_interrupt_line	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Enable the interrupt feature of the EIC.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).
line_number	Line number to enable

void eic_enable_interrupt_lines	(	volatile avr32_eic_t *	eic,
		uint32_t	mask_lines
	)

Enable the interrupt feature of the EIC.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).
mask_lines	Mask for current selected lines

void eic_enable_interrupt_scan	(	volatile avr32_eic_t *	eic,
		uint32_t	presc
	)

Enable the interrupt scan feature of the EIC.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).
presc	Prescale select for the keypad scan rate in the range [0,31].

void eic_enable_line	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Enable the EIC driver.

Parameters

eic	Base address of the EIC module
line_number	Line number to enable

Referenced by ui_enable_asynchronous_interrupt().

void eic_enable_lines	(	volatile avr32_eic_t *	eic,
		uint32_t	mask_lines
	)

Enable the EIC driver.

Parameters

eic	Base address of the EIC module
mask_lines	Mask for current selected lines

uint32_t eic_get_interrupt_pad_scan ( volatile avr32_eic_t * eic )

Return scan pad number that causes interrupt.

Parameters

eic	Base address of the EIC (i.e. &AVR32_EIC).

void eic_init	(	volatile avr32_eic_t *	eic,
		const eic_options_t *	opt,
		uint32_t	nb_lines
	)

Init the EIC driver.

Parameters

eic	Base address of the EIC module
opt	Configuration parameters of the EIC module (see eic_options_t)
nb_lines	Number of lines to consider, equal to size of opt buffer

References eic_options_t::eic_async, eic_options_t::eic_edge, eic_options_t::eic_filter, eic_options_t::eic_level, eic_options_t::eic_line, and eic_options_t::eic_mode.

Referenced by ui_enable_asynchronous_interrupt().

bool eic_is_interrupt_line_enabled	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Tells whether an EIC interrupt line is enabled.

Parameters

eic	Base address of the EIC module
line_number	Line number to test

Returns: Whether an EIC interrupt line is enabled.

bool eic_is_interrupt_line_pending	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Tells whether an EIC interrupt line is pending.

Parameters

eic	Base address of the EIC module
line_number	Line number to test

Returns: Whether an EIC interrupt line is pending.

bool eic_is_line_enabled	(	volatile avr32_eic_t *	eic,
		uint32_t	line_number
	)

Tells whether an EIC line is enabled.

Parameters

eic	Base address of the EIC module
line_number	Line number to test

Returns: Whether an EIC line is enabled.

Microchip® Advanced Software Framework

Data Structures

Functions

External Interrupt lines

Mode Trigger Options

Edge level Options

Level Options

Filter Options

Synch Mode Options

Interrupt Control Functions