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Altera_Forum
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13 years ago

SPI with DMA is not working?

Hi, everyone I am using SPI Master Core on FPGA to transmit data to SPI slave (offboard device). I want to use DMA to free my NIOS for other tasks during SPI data transfer. My Idea is NIOS...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I actually build a minimal system in Qsys and generated the system to inspect the code. I exported both the MM Slave interface and the SPI conduit.

I played around with the checkboxes etc. but the HDL example didn't change ... no waitrequetst signal showed up.

So I think it doesn't work without some extra work.