Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Sending interrupt to a custom logic.

Hi,

I hope I'm posting in the right section.

I need a DMA Controller for my project. I am not using a NIOS system with it and I want to trigger a custom logic circuit when the data transfer is over. From the manual of DMA controller in SOPC builder, I got the idea that I can read the Status register of the Controller repeatedly to check whether the transfer is finished or not. Which i might do, but I was wondering if it is possible to use the interrupt that the controller generates at the end of a transaction to trigger the circuit. Is it possible to receive the interrupt with a my circuit? If possible, how? I don't see any way to export or use any bridge with the 'irq' terminal present in the DMA CONTROLLER in SOPC builder.

Thank you.

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    If the DMA module has IRQ sender, then create Your own component, which has IRQ receiver signal.