Forum Discussion

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

msgdma stuck in busy state

Hello :) I have a problem with the msgdma. When I submit a descriptor to it and set the go bit it keeps in busy state. I'm using the SoCKit with Cyclone V and Quartus 14.1 The msgdma ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Thanks, derim. As I said, what I saw in simulation could be a BFM problem. But the hardware never worked with transfer size > burst size. I would like to go back and do more SignalTapping to make sure the behavior in sim and hardware was the same, but hard to justify the time now that we have it working.

Are you using the prefetcher or just feeding descriptors into the descriptor slave interface? Our data interface is also 128 bits.

Bob