lowRISC / lowRISC/opentitan

[opentitanlib] SAM3X interface pin mappings

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SW:opentitantool Type:Bug
Dominant language
SystemVerilog
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Description

### Description

There are some gaps in the config files for the `cw310` interface which goes through the SAM3X.

* Some pin names are not recognised, leading to errors like `Error: Invalid pin name IOR10`.
* The `dut` UART is not configured correctly, so most UART tests fail.

Contributor guide

Open the contributing guide

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

Start by locating the cw310 interface config files and the SAM3X pin-mapping and dut UART entries. Reproduce the invalid IOR10 pin error and the failing UART tests, then update the mappings so the pin is recognised and the dut UART is configured correctly. Done means the reported pin error is gone and the UART tests pass.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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