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Mikhail_a's avatar
Mikhail_a
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

FPGA to HPS bridge on Agilex 7

Hello I'm trying to read and write from and to HPS SDRAM on Agilex 7 board I have this configuration of fpga2hps interface: On the other side I have two msgdma ip cores for MM to Stream and...
Fpga Devkit
Mikhail_a's avatar
Mikhail_a
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

One more question has just recently arised.

When I try to read from HPS SDRAM I get RRESP == 3. The address I use for read operation is provided by Linux driver (physical address like 0x2A377D802) and it is supposed to point to SDRAM region.

So my question is: do I need to somehow change read/write address before read or write through fpga2sdram bridge?