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prateekmohan's avatar
prateekmohan
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4 years ago

PCIe Avalon-MM to DDR Write and Read

Hello, I am looking at methods to write/read from DDR from my host system through the PCIe Hard IP block. I have looked at some examples for Qsys projects using the PCIe Hard IP block and I under...
prateekmohan's avatar
prateekmohan
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4 years ago

Hi Deshi,

How can I go about replacing it with DDR3 or DDR4? I believe the only way is to use the IP Block "External Memory Interface IP" right?

The problem with this IP is that it provides its own clock reference to the master that is writing/reading to it. However, the PCIe Avalon Master is running off the PCIe clock (250 MHz). So how would I replace the BRAM with a DDR3 or DDR4?