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Altera_Forum
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10 years ago

Best way to share DDR w/ FPGA

I have a rather simple task to perform but I don't know where to start. I'm using a Cyclone V SoCKit board. What I want to do is have the ARM processor write a data table in DDR so that th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

If the data you want to transfer is a (or a group of) memory block, I think the easiest solution would be to use the SGDMA or the modular SGDMA component. When configured as memory-to-stream, they deliver the data on an Avalon Stream Source interface which is very easy to use. Just put 'ready' to 1 when you can receive data, and when 'valid' is 1, you have new data on the 'data' signal.