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2021-01-11-minutes.md

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OpenHW Software Task Group Meeting Minutes

Monday 11 January 2021, 15:00 UTC

Attendees

See separate attendance register

Summary of actions

  • Florian Zaruba to reach out 1:1 to OpenHW Group members to see if anoyone would like to contribute/lead a project to develop a Hardware Abstraction Layer (both for software and hardware use).

  • Ivan Kravets and Duncan Bees to liaise about creating a prelminary project proposal for a CORE-V PlatformIO project.

  • Simon Davidmann, Alexander Fedorov and Ivan Kravets to work out how OVPSim for CORE-V can be included within Eclispse CDE and PlatformIO.

  • Jeremy Bennett to schedule time for a fuller discussion of models for use by software engineers at the next meeting.

Meeting topics

Review of actions

  • Duncan Bees/Florian Zaruba to convene a tutorial 1 hour meeting on practical use of CI&T.

    • Not yet started.

  • Mike Thompson to convene meeting for those interested in pure software platform models.

    • Initial discussion held as part of TWG. Follow on meeting to be scheduled.

  • Jeremy Bennett to schedule time for a fuller discussion of a Hardware Abstraction Layer at the next meeting.

Report back from TWG

The Chair and Duncan Bees reported back.

Reports from current projects

CORE-V IDE

Alexander Fedorov presented his report.

  • need to get access to real hardware to set up environments
  • in discussion with Tim Saxe about setting up an IDE for the Quicklogic CORE-V project

CORE-V GNU Tools

Jessica Mills presented her monthly report.

  • noted that Embecosm effort is winding down, University of Bologna continues, but we still need around 5-6 months GCC expertise to complete the project.
  • FSF agreement for University of Bologna is being driven by Giuseppe Tagliavini.

CORE-V FreeRTOS

Shteryana Shopova presented her and Robert Balas's monthly report

  • Tim Saxe has also tested the FreeRTOS port independently. Both hit into problems with memory access and identified a bug in RTL. Now have a new bitstream, which works with bare metal "Hello World" application.

  • Currently working on configuring timer interrupts, but not yet working.

  • Needs help from someone with full Vivado license to generate bitstreams

    • prebuilt bitstreams are very useful for the software team.

  • Robert Balas is cleaning up FreeRTOS code for CORE-V to remove PULP specific functionality.

CORE-V Clang/LLVM

Philipp Krones presented his and André Szintoff's monthly report

  • Philipp now moving to new projects, will complete his current pull requests. Needs to find a reviewer with LLVM expertise.

New potential projects

Hardware Abstraction Layer

Florian Zaruba introduced the concept of a hardware abstraction layer (HAL). Possibly something like Arm CMSIS or SiFive Freedom Metal. Something we can develop applications against and then run on different core and system incarnations.

Questions/Comments

  • Bare metal BSP. Should we be using the same BSP in verification as in real distribution.

  • Need to separate out a hardware abstraction layer from any "monitor", which may be part of the testing of the HAL.

  • Different meanings of HAL in different worlds. Hardware engineers use it to mean a standardized way of handling I/O registers.

Action: Florian Zaruba to reach out 1:1 to OpenHW Group members to see if anoyone would like to contribute/lead a project to develop a Hardware Abstraction Layer (both for software and hardware use).

PlatformIO for CORE-V

Ivan Kravets and Valerii Koval demonstrated PlatformIO for CORE-V. Rick O'Conner reported that he had brought up the system over Christmas.

Action: Ivan Kravets and Duncan Bees to liaise about creating a prelminary project proposal for a CORE-V PlatformIO project.

Models for use by software engineers

This will be discussed in detail at the next meeting.

Simon Davidmann gave a brief summary of the Imperas OVPSim models and how they could be integrated with the IDE.

Action: Simon Davidmann, Alexander Fedorov and Ivan Kravets to work out how OVPSim for CORE-V can be included within Eclispse CDE and PlatformIO.

Action: Jeremy Bennett to schedule time for a fuller discussion of models for use by software engineers at the next meeting.

Linux for CORE-V

Deferred to a later meeting.

Extending existing projects to CVA6 and CVE2

Deferred to a later meeting.

AOB

Dates for future meetings

The task group meets monthly at 07:00 Pacific Time on the second Monday of the month.

  • 08 Feb 2020
  • 08 Mar 2020
  • 12 Apr 2020
  • 10 May 2020
  • 14 Jun 2020
  • 12 Jul 2020
  • 09 Aug 2020
  • 13 Sep 2020
  • 11 Oct 2020
  • 08 Nov 2020
  • 13 Dec 2020

Jeremy Bennett, Chair
Yunhai Shang, Vice-Chair