FPGA to SDRAM AXI Transfer

Never mind. Found it.

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Hello,

I'm doing a project with Arria V SoC using the HPS and FPGA parts. In the FPGA, I have a custom IP with AXI Master interface on it.

This IP should read and write from/to the SDRAM directly. However, I can only do read operation! The write operation does not work.

The data in SDRAM is provided by HPS (running Linux). For now, I'm using /dev/mem to write the data to the SDRAM.

Using the same method, I found that the data is never written from FPGA.

1. Can you help me with this issue? Anyone has already done a work using AXI and SDRAM?

2. In Qsys, my AXI master should be connected to the SDRAM, right? Did I do some mistake? I connect it to f2h_sdram0_data, not f2h_axi_slave on hps_0.

3. Is there any configuration that I need to do in the AXI to perform read and write?

Thank you so much for your help.

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Never mind. Found it.

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If you post your solution it can help others in the future, who will most likely be very grateful!

Hi,

Perhaps you can refer to the following design example on using the FPGA to HPS SDRAM bridge:

https://rocketboards.org/foswiki/projects/cyclevsocsdramperformanceexampledesign

Regards,

ccthum

(This message was posted on behalf of Intel Corporation)