Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
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 ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

As long as when you say "F2H" you really mean F2S (i.e. the HPS SDRAM dedicated ports) then yes this is the correct way to set up the hardware. You can probably reduce the DMA length register width since you are only exposing 512kB of memory in the HPS at a time.

Make sure the DMA control port is connected to the lightweight HPS-to-FPGA bridge so that MPU can tell the DMA what to do.