Forum Discussion

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

exporting DMA done signal to "outer world"

Hi I have an SOPC builder system containing (among other modules) NIOS, DMA and a bus to costume HW outside the SOPC builder. when the DMA is done, it gives an interrupt to the NIOS. I would ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

A component that contains a interrupt sender/receiver (and maybe a dummy master/slave might be necessary in SOPC Builder) should do the trick. Then you would wire the IRQ you want to export to a conduit.

Note: that this method will break the DMA driver since it won't know the interrupt is coming from the DMA anymore.