lowRISC / lowRISC/ibex

[doc] Update configurations in README.md

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SystemVerilog
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Description

[The configurations in `doc/02_user/configuration.rst`] differ from [those in the ReadMe](https://github.com/lowRISC/ibex#configuration). While updating the ReadMe is probably out of scope of this PR, should we create an issue to align it?

_Originally posted by @andreaskurth in https://github.com/lowRISC/ibex/pull/1980#discussion_r1098870794_

Yes, we should. I think we can just switch to maxperf-pmp-bmbalance, though will need to get some synthesis numbers. We should add the 'micro' configuration too though I don't think that can be a supported configuration as I don't think riscv-dv supports it (I seem to remember there are some toolchain issues with E as well). Still we could do some verilator based smoke test for the micro config, ensure it's not entirely dead ;)

_Originally posted by @GregAC in https://github.com/lowRISC/ibex/pull/1980#discussion_r1102829220_

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Compare the configuration section in README.md with doc/02_user/configuration.rst, starting with the configurations named in both files. Resolve which configurations and synthesis numbers should be documented, including whether the micro configuration needs a Verilator smoke test; done means the README and configuration guide are aligned and the stated validation is available.

Written by the indexing model from the issue text.

Assessment

Domain
documentation, embedded-iot
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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