Cyclone SL811HS interrupts

Wow.. again.. brilliant support - thanks guys.

Yes - it did work, I am now getting interrupts - I don't know if I missed something in the docs.

To anyone following this discussion here's how I enabled interrupts from the SL811HS to the NIOS-II core..

// you need this:

//----------------------------------------------------------------------------------

volatile unsigned int *pAddrSel = (unsigned int*) (USB_BASE);

// write a single byte to the controller at addr

void Write ( unsigned int addr, unsigned int value )

{

pAddrSel[0] = addr;

pAddrSel[1] = value;

}

.

.

then somewhere in your code...

.

.

// enable the interrupts to come through

IOWR_ALTERA_AVALON_PIO_DATA(USB_BASE + 8, 0x04);

// register an interrupt handler for the USB interrupts

alt_irq_register (USB_IRQ, NULL, handle_USB_interrupts);

// enable all interrupts from the controller

Write ( REG_INTERRUPT_ENABLE, 0x7f );

that's it...