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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 configure the whole DMA: readaddress,writeaddress,length and control.

Initially Nios II processor writes some register of my peripheral to set some address...then it works by its own driven by an input interupt signal for each trasfer...