How to use interrupt?

I&#39;m in the same problem as m_isshiki (and also a newbie http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif ).

Without eCos, i used my interrupt this way:

static void HandleRising1Interrupt(void *context, alt_u32 id)

{

// Do the interrupt routine stuff

// ...

IOWR_ALTERA_AVALON_PIO_EDGE_CAP(PIO_INT_RISING1_BASE, 0);

}

void main()

{

IOWR_ALTERA_AVALON_PIO_IRQ_MASK(PIO_INT_RISING1_BASE, 0xF);

IOWR_ALTERA_AVALON_PIO_EDGE_CAP(PIO_INT_RISING1_BASE, 0);

alt_irq_register(PIO_INT_RISING1_IRQ, (void *) 0, HandleRising1Interrupt);

// The rest of the application

// ...

}

My interrupt is defined by the following constants in system.h:

/*

* pio_int_rising1 configuration

*

*/

# define PIO_INT_RISING1_NAME "/dev/pio_int_rising1"# define PIO_INT_RISING1_TYPE "altera_avalon_pio"# define PIO_INT_RISING1_BASE 0x02000820# define PIO_INT_RISING1_IRQ 4# define PIO_INT_RISING1_DO_TEST_BENCH_WIRING 0# define PIO_INT_RISING1_DRIVEN_SIM_VALUE 0x0000# define PIO_INT_RISING1_HAS_TRI 0# define PIO_INT_RISING1_HAS_OUT 0# define PIO_INT_RISING1_HAS_IN 1# define PIO_INT_RISING1_CAPTURE 1# define PIO_INT_RISING1_EDGE_TYPE "RISING"# define PIO_INT_RISING1_IRQ_TYPE "EDGE"# define PIO_INT_RISING1_FREQ 70000000

As you can see, it&#39;s defined as a "rising edge" interrupt.

Now I&#39;m trying to do the same with eCos, using a similar code to that used by m_isshiki, but with no result.

Could anybody please explain how to handle my interrupt with eCos?

Thank you very much.

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originally posted by m_isshiki@Dec 13 2005, 08:48 AM

can you give me some advice?

i am really in trouble.

i use stratixii dev kit.

so, hardware should be ok.

but i&#39;m not sure how to use interrupt.

thank you.

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