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<hedgeberg> o/
<hedgeberg> o/
<hedgeberg> o/
<hedgeberg> o/
<hedgeberg> o/
<hedgeberg> hello! JDM told me this would be a good place to connect with the dev team about contributing
<hedgeberg> hello! JDM told me this would be a good place to connect with the dev team about contributing
<hedgeberg> hello! JDM told me this would be a good place to connect with the dev team about contributing
<hedgeberg> hello! JDM told me this would be a good place to connect with the dev team about contributing
<hedgeberg> hello! JDM told me this would be a good place to connect with the dev team about contributing
<sorear> hi!
<sorear> hi!
<sorear> hi!
<sorear> hi!
<sorear> hi!
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<hedgeberg> yeah this is a much lower-density channel than #yosys
<mithro> hedgeberg: Yes!
<mithro> hedgeberg: About to head into a meeting but will be around a bit later if you have questions
<hedgeberg> i mean im not working on this rn, but ill let you know when im starting my first to-do task mithro
<hedgeberg> and, thanks!
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<mithro> The DRAM tests can be found at https://github.com/SymbiFlow/symbiflow-arch-defs/tree/master/artix7/tests/dram -- as far as I know they all work. litghost was going to move onto the BRAM tests which would be in https://github.com/SymbiFlow/symbiflow-arch-defs/tree/master/artix7/tests/bram -- would be good to verify that someone else can get the DRAM tests running too
<tpb> Title: symbiflow-arch-defs/artix7/tests/dram at master · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com)
<sorear> I'm annoyed that we're using "DRAM" for two unrelated things in FPGA documentation
<mithro> tmichalak: ^
<mithro> sorear: Distributed RAM verse external DDR RAM?
<sorear> wish we could reserve DRAM for efforts to document the ecp5 DQSDLL blocks and whatever Xilinx has, and come up with a different term like Async RAM or LUT RAM for that thing
<sorear> probably too late
<sorear> maybe DisRAM
<sorear> yes, distributed RAM versus external DDRx RAM
<mithro> tmichalak: To generate images -> do cd ~/github/SymbiFlow/symbiflow-arch-defs/build/artix7/primitives/slicel then type "make <tab>"
<daveshah> I don't think anyone ever uses DRAM for DQS primitives etc?
<mithro> tmichalak: You'll get something like "make file__home_tansell_github_SymbiFlow_symbiflow-arch-defs_artix7_primitives_slicel_slicel.bb.svg"
<daveshah> If nothing else that SDRAM doesn't need them
<mithro> sorear: I almost always say DDR RAM
<daveshah> What would be confusing is an FPGA with built in DRAM
<mithro> daveshah: inbuilt DDR RAM? :-P
<daveshah> ie the Anlogic parts with die stack SDRAM
<mithro> daveshah: The two ram types in iCE40UP5K is alway confusing :-P
<daveshah> Pretty sure I've seen a FPGA with DDR2 in package
<sorear> xilinx and altera have talked a lot about HBM/HMC for high end parts but idk if anything ever shipped
<sorear> but re. DRAM I'm thinking more litedram and the overwhelming external computer industry context
<daveshah> EG4D20 has 128Mb DDR in package
<sorear> now we just need one with eDRAM
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<daveshah> That would be fun
<daveshah> I wonder if we will ever see commercial FPGAs with dynamic config memory?
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<sorear> it seems like a better fit for gain cells (2T/3T using "parasitic" gate capacitance of a dedicated read transistor) than traditional 1T1C DRAM
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<mithro> tmichalak: You want to add this alias to your ~/.bash_aliases or ~/.bash_rc
<mithro> alias cdb='cd $(pwd | sed -e"s,$(git rev-parse --show-toplevel),$(git rev-parse --show-toplevel)/build," -e"s,build/build,,")'
<mithro> lets you quickly switch between the build and non-build at the same directory level
<mithro> tmichalak: So it looks like the stuff in the dram directory just tests to check that VPR can place and route those primitives
<mithro> tmichalak: The actual place which creates something which runs on the device is https://github.com/SymbiFlow/symbiflow-arch-defs/blob/master/artix7/tests/ram_test/ram_test.v it seems
<tpb> Title: symbiflow-arch-defs/ram_test.v at master · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com)
<tpb> Title: symbiflow-arch-defs/top.v at master · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com)
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<tpb> Title: SymbiFlow Architecture Definitions symbiflow-arch-defs 0.1 documentation (at symbiflow-arch-defs.readthedocs.io)
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<tpb> Title: SymbiFlow Architecture Definitions symbiflow-arch-defs 0.1 documentation (at symbiflow-arch-defs.readthedocs.io)
<tpb> Title: SymbiFlow Architecture Definitions - File Diagram - Google Drawings (at docs.google.com)
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<mithro> mgielda: Is that helping?
<mgielda> yup, thx
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<kgugala> hi
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<sorear> hi?
<mithro> Hi kgugala!
<tpb> Title: vtr-verilog-to-routing/atom_netlist.h at master+wip · SymbiFlow/vtr-verilog-to-routing · GitHub (at github.com)
<mithro> mgielda: It has pretty nice documentation in those files which turns up *nowhere* when you search for it
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<tpb> Title: SymbiFlow Architecture Definitions - File Diagram - Google Drawings (at docs.google.com)
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