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Altera_Forum
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11 years ago

With the Cyclone V SoC, how can I use the FPGA fabric to access the HPS DMA?

Hello everyone, I want to make something that records values that are in my FPGA. I thought of using the Cyclone V SoC DMA, I do have the Altera SoC kit. With the Cyclone V SoC, how can I ...
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Altera_Forum
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9 years ago

If you are trying to move data between the HPS and FPGA have a look at this design, in the documentation directory you can review bandwidth numbers to see which path makes sense for your system: https://www.altera.com/support/support-resources/design-examples/soc/fpga-to-hps-bridges-design-example.html

As a general rule of thumb if you need to perform cacheable accesses use the F2H bridge with a DMA implemented in the FPGA, if you don't require cacheable accesses use the F2S ports and a FPGA DMA since that's where the bulk of the bandwidth is.