Interrupts

Data Structures
struct	avr_int_vector_t
	interrupt vector for the IO modules More...
struct	avr_int_table_t
	Interrupt vectors, and their enable/clear registers. More...

Typedefs
typedef struct avr_int_vector_t	avr_int_vector_t
	interrupt vector for the IO modules More...
typedef struct avr_int_table_t	avr_int_table_t
	Interrupt vectors, and their enable/clear registers. More...
typedef struct avr_int_table_t *	avr_int_table_p

Functions
void	avr_register_vector (struct avr_t *avr, avr_int_vector_t *vector)
	Register an interrupt vector. It's only needed if you want to use the "r_raised" flags. More...
int	avr_raise_interrupt (struct avr_t *avr, avr_int_vector_t *vector)
	Raise an interrupt (if enabled). More...
int	avr_has_pending_interrupts (struct avr_t *avr)
	Return non-zero if the AVR core has any pending interrupts. More...
int	avr_is_interrupt_pending (struct avr_t *avr, avr_int_vector_t *vector)
	Return nonzero if a specific interrupt vector is pending. More...
void	avr_clear_interrupt (struct avr_t *avr, avr_int_vector_t *vector)
	Clear the "pending" status of an interrupt. More...
void	avr_service_interrupts (struct avr_t *avr)
	Called by the core at each cycle to check whether an interrupt is pending. More...
int	avr_clear_interrupt_if (struct avr_t *avr, avr_int_vector_t *vector, uint8_t old)
	Clear the interrupt (inc pending) if "raised" flag is 1. More...
avr_irq_t *	avr_get_interrupt_irq (struct avr_t *avr, uint8_t v)
	Return the IRQ that is raised when the vector is enabled and called/cleared this allows tracing of pending interrupts. More...
void	avr_interrupt_init (struct avr_t *avr)
	Initializes the interrupt table. More...
void	avr_interrupt_reset (struct avr_t *avr)
	Reset the interrupt table and the fifo. More...

Detailed Description

Typedef Documentation

typedef struct avr_int_table_t * avr_int_table_p

typedef struct avr_int_table_t avr_int_table_t

Interrupt vectors, and their enable/clear registers.

typedef struct avr_int_vector_t avr_int_vector_t

interrupt vector for the IO modules

Function Documentation

void avr_clear_interrupt	(	struct avr_t *	avr,
		avr_int_vector_t *	vector
	)

Clear the "pending" status of an interrupt.

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int avr_clear_interrupt_if	(	struct avr_t *	avr,
		avr_int_vector_t *	vector,
		uint8_t	old
	)

Clear the interrupt (inc pending) if "raised" flag is 1.

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avr_irq_t* avr_get_interrupt_irq	(	struct avr_t *	avr,
		uint8_t	v
	)

Return the IRQ that is raised when the vector is enabled and called/cleared this allows tracing of pending interrupts.

int avr_has_pending_interrupts

(

struct avr_t *

avr

)

Return non-zero if the AVR core has any pending interrupts.

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void avr_interrupt_init

(

struct avr_t *

avr

)

Initializes the interrupt table.

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void avr_interrupt_reset

(

struct avr_t *

avr

)

Reset the interrupt table and the fifo.

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int avr_is_interrupt_pending	(	struct avr_t *	avr,
		avr_int_vector_t *	vector
	)

Return nonzero if a specific interrupt vector is pending.

int avr_raise_interrupt	(	struct avr_t *	avr,
		avr_int_vector_t *	vector
	)

Raise an interrupt (if enabled).

The interrupt is latched and will be called later return non-zero if the interrupt was raised and is now pending

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void avr_register_vector	(	struct avr_t *	avr,
		avr_int_vector_t *	vector
	)

Register an interrupt vector. It's only needed if you want to use the "r_raised" flags.

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void avr_service_interrupts

(

struct avr_t *

avr

)

Called by the core at each cycle to check whether an interrupt is pending.

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