IRQ API

Functions for controlling IRQs. More...

Functions
EPIO_EXPORT void	epio_set_block_irq (epio_t *epio, uint8_t block, uint8_t irq_num)
	Set an IRQ flag for a PIO block.
EPIO_EXPORT void	epio_clear_block_irq (epio_t *epio, uint8_t block, uint8_t irq_num)
	Clear an IRQ flag for a PIO block.

Detailed Description

Functions for controlling IRQs.

Function Documentation

epio_clear_block_irq()

EPIO_EXPORT void epio_clear_block_irq	(	epio_t *	epio,
		uint8_t	block,
		uint8_t	irq_num
	)

Clear an IRQ flag for a PIO block.

Clears the specified IRQ flag (0-7) for the given PIO block. State machines waiting on that IRQ will continue waiting until it is set again.

Parameters

epio	The epio instance.
block	PIO block index (0 to NUM_PIO_BLOCKS-1
irq_num	IRQ number to clear (0 to NUM_IRQS_PER_BLOCK-1).

epio_set_block_irq()

EPIO_EXPORT void epio_set_block_irq	(	epio_t *	epio,
		uint8_t	block,
		uint8_t	irq_num
	)

Set an IRQ flag for a PIO block.

Sets the specified IRQ flag (0-7) for the given PIO block. This can be used to trigger state machines waiting on that IRQ.

Parameters

epio	The epio instance.
block	PIO block index (0 to NUM_PIO_BLOCKS-1
irq_num	IRQ number to set (0 to NUM_IRQS_PER_BLOCK-1).