search

enjoy-digital / litedram

Small footprint and configurable DRAM core
Other
365 stars 115 forks source link

Support for DRAM on Lattice ICE40HX devices? #215

Closed adamfeuer closed 3 years ago

adamfeuer commented 3 years ago

Hi, is LiteDRAM known to work on Lattice ICE40HX devices? I didn't see an example for it... has anyone tried it yet?

daveshah1 commented 3 years ago

I believe it has been used successfully for SDRAM as part of a LiteX SoC. There is no iCE40 PHY for any of the DDR variants.

adamfeuer commented 3 years ago

@daveshah1 Thanks. SDRAM would work for me.

Does it make sense to create a DDR PHY for the the iCE40? If so, what would it take to do it? How were the existing DDR PHYs created and debugged (for instance the s6ddrphy.py?)

adamfeuer commented 3 years ago

I see there's a DDR PHY for ECP5. That would also work for me. Thanks.