* <https://github.com/blackmesalabs/hyperram>
* Symbiotic EDA have a DDR variant that they can make libre for the
right $
+* Litex Hub <https://github.com/litex-hub/litehyperbus>
+* <https://github.com/zeldin/litehyperram>
+* VHDL hyperram <https://github.com/MJoergen/HyperRAM>
+* [[HDL_workflow/HyperRAM]]
+* <https://www.infineon.com/dgdl/Infineon-AN226576_Getting_Started_with_HyperRAM-ApplicationNotes-v02_00-EN.pdf>