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Chisel Project Template

You've done the chisel tutorials, and now you are ready to start your own chisel project. The following procedure should get you started with a clean running Chisel3 project.

Make your own Chisel3 project

How to get started

The first thing you want to do is clone this repo into a directory of your own. I'd recommend creating a chisel projects directory somewhere

mkdir ~/ChiselProjects
cd ~/ChiselProjects

git clone https://github.com/ucb-bar/chisel-tutorial.git MyChiselProject
cd MyChiselProject

Make your project into a fresh git repo

There may be more elegant way to do it, but the following works for me. Note: this project comes with a magnificent 339 line (at this writing) .gitignore file. You may want to edit that first in case we missed something, whack away at it, or start it from scratch.

rm -rf .git
git init
git add .gitignore *
git commit -m 'Starting MyChiselProject'

Connecting this up to github or some other remote host is an exercise left to the reader.

Did it work?

You should now have a project based on Chisel3 that can be run. Note: With a nod to cargo cult thinking, some believe it is best to execute the following sbt before opening up this directory in your IDE. I have no formal proof of this assertion. So go for it, at the command line in the project root.

sbt test

You should see a whole bunch of output that ends with the following lines

STEP 49996 -> 50000
  EXPECT io_z -> 0x10 == 0x10 PASS
  EXPECT io_v -> 0x1 == 0x1 PASS
RAN 50000 CYCLES PASSED[info] GCDTester:
[info] GCD
[info] - should calculate proper greatest common denominator
[info] ScalaCheck
[info] Passed: Total 0, Failed 0, Errors 0, Passed 0
[info] ScalaTest
[info] Run completed in 3 seconds, 294 milliseconds.
[info] Total number of tests run: 1
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 1, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[info] Passed: Total 1, Failed 0, Errors 0, Passed 1
[success] Total time: 8 s, completed Jun 3, 2016 5:50:46 AM

If you see the above then...

It worked!

You are ready to go. We have a few recommended practices and things to do.

  • Use packages and following conventions for structure and naming
  • Package names should be clearly reflected in the testing hierarchy
  • Build tests for all your work.
  • This template includes a dependency on the Chisel3 IOTesters, this is a reasonable starting point for most tests
  • You can remove this dependency in the build.sbt file if necessary
  • Change the name of your project in the build.sbt
  • Change your README.md