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Altera_Forum's avatar
Altera_Forum
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21 years ago

Trigger DMA by User Logic

Hi guys, does somebody know if it is possible to trigger a DMA via User Logic? My system now: I have a User Logic (FIFO) that generates a IRQ. The NIOS starts the DMA to get the data ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Hi Revolt,

I've made it. I think what you need a smart peripheral that inizialize your DMA to trasfer data. I've designed it with a Avalon master port connected to the slave control port of the DMA;furthermore my smart peripheral has a slave port too, connected with Nios II processor, used to inizialize my peripheral...