62 lines
2.2 KiB
Markdown
62 lines
2.2 KiB
Markdown
This is the starting point for a vlsi flow from this repository.
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This flow will not work without the necessary CAD and technology plugins for HAMMER.
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If you are a UCB-affiliate, you may be able to acquire access to the tool & tech plugins.
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# Initial Setup Instructions (For all technologies)
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Run the `init-vlsi.sh` script to pull correct versions of hammer, hammer-TOOL\_VENDOR-plugins, and the hammer-TECH\_NAME-plugins. Note the included technology 'asap7' is already included and will not submodule a tech plugin.
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```shell
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scripts/init-vlsi.sh TECH_NAME
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```
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An example of tool environment configuration for BWRC affiliates is given in `bwrc-env.yml`. Replace as necessary for your environment.
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Finally, set up all prerequisites for the build system:
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```shell
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make buildfile
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```
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# Example design
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In this example, you will be running a SHA-3 accelerator through the VLSI flow. It is assumed that you have already run through the flow to elaborate the Chisel into Verilog.
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HAMMER's configuration is driven by a JSON/YAML format. For HAMMER, JSON and YAML files are equivalent - you can use either one since HAMMER will convert them to the same representation for itself.
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We start by pulling the HAMMER environment into the shell:
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```shell
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export HAMMER_HOME=$PWD/hammer
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source $HAMMER_HOME/sourceme.sh
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```
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The configuration for the example design is contained in `example.yml` and the entry script with hooks is contained in `example-vlsi`. You may go through Hammer's readme to learn about the supported configuration options and how to write hooks.
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To synthesize a design:
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```shell
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make syn
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```
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The outputs are written to a log file with a timestamp and the post-synthesis results are in `build/syn-rundir`.
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Raw QoR data is available at `build/syn-rundir/reports`, and work is planned to extract this information in a more programmatic manner.
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To run place and route:
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```shell
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make par
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```
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If successful, the resulting chip can be opened via `./build/par-rundir/generated-scripts/open_chip`.
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To run DRC and view violations:
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```shell
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make drc
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./build/drc-rundir/generated-scripts/view-drc
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```
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To run LVS and view violations:
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```shell
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make lvs
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./build/lvs-rundir/generated-scripts/view-lvs
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```
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