{ "//": "DO NOT EDIT THIS FILE before reading the comments below:", "//": "This is the default configuration for Tiny Tapeout projects. It should fit most designs.", "//": "If you change it, please make sure you understand what you are doing. We are not responsible", "//": "if your project fails because of a bad configuration.", "//": "!!! DO NOT EDIT THIS FILE unless you know what you are doing !!!", "//": "If you get stuck with this config, please open an issue or get in touch via the discord.", "//": "Here are some of the variables you may want to change:", "//": "PL_TARGET_DENSITY_PCT - You can increase this if Global Placement fails with error GPL-0302.", "//": "Users have reported that values up to 80 worked well for them.", "PL_TARGET_DENSITY_PCT": 60, "//": "CLOCK_PERIOD - Increase this in case you are getting setup time violations.", "//": "The value is in nanoseconds, so 20ns == 50MHz.", "CLOCK_PERIOD": 20, "//": "Hold slack margin - Increase them in case you are getting hold violations.", "PL_RESIZER_HOLD_SLACK_MARGIN": 0.1, "GRT_RESIZER_HOLD_SLACK_MARGIN": 0.05, "//": "RUN_LINTER, LINTER_INCLUDE_PDK_MODELS - Disabling the linter is not recommended!", "RUN_LINTER": 1, "LINTER_INCLUDE_PDK_MODELS": 1, "//": "If you need a custom clock configuration, read the following documentation first:", "//": "https://tinytapeout.com/faq/#how-can-i-map-an-additional-external-clock-to-one-of-the-gpios", "CLOCK_PORT": "clk", "//": "Configuration docs: https://librelane.readthedocs.io/en/latest/reference/configuration.html", "//": "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!", "//": "!!! DO NOT CHANGE ANYTHING BELOW THIS POINT !!!", "//": "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!", "//": "Save some time", "RUN_KLAYOUT_XOR": 0, "RUN_KLAYOUT_DRC": 0, "//": "Don't put clock buffers on the outputs", "DESIGN_REPAIR_BUFFER_OUTPUT_PORTS": 0, "//": "Reduce wasted space", "TOP_MARGIN_MULT": 1, "BOTTOM_MARGIN_MULT": 1, "LEFT_MARGIN_MULT": 6, "RIGHT_MARGIN_MULT": 6, "//": "Absolute die size", "FP_SIZING": "absolute", "GRT_ALLOW_CONGESTION": 1, "FP_IO_HLENGTH": 2, "FP_IO_VLENGTH": 2, "FP_PDN_VPITCH": 38.87, "//": "Clock", "RUN_CTS": 1, "//": "Don't generate power rings", "FP_PDN_MULTILAYER": 0, "//": "MAGIC_DEF_LABELS may cause issues with LVS", "MAGIC_DEF_LABELS": 0, "//": "Only export pin area in LEF (without any connected nets)", "MAGIC_WRITE_LEF_PINONLY": 1 }