SDRAM

Dev Guide

1. Install Nix

2. Enter development environment:

   nix develop .#sdram.<target>

3. Setup Mill BSP

   mill mill.bsp.BSP/install

4. Open your favorite IDE

Elaborate Verilog

Use this line to generate a json config at PWD, you can config the parameter on the command-line.

# rtl config
nix run .#sdram.sdram-compiled.elaborator -- config --idWidth 4 --dataWidth 32 --addrWidth 32 --csWidth 4

# testbench config
nix run .#sdram.tb-compiled.elaborator -- config --idWidth 4 --dataWidth 32 --addrWidth 32 --csWidth 4 --useAsyncReset false --initFunctionName cosim_init --dumpFunctionName dump_wave --clockFlipTick 1 --resetFlipTick 100 --timeout 10000

Use this line to generate the Verilog at result, based on the config in configs directory.

nix build .#sdram.rtl

or elaborate design with testbench:

nix build .#sdram.tb-rtl

Generated Verilog will be placed at result by default, which can be specified with -O

Run VCS Simulation

nix run .#sdram.vcs-trace --impure -- +dump-range=0,10000 +wave-path=trace +fsdb+sva_success

Update dependency

Build from source dependencies

pushd nix/pkgs/dependencies && nix run nixpkgs#nvfetcher && popd

Other dependencies

nix flake update