From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 5919C3CB37 for ; Tue, 6 Sep 2022 15:19:53 -0400 (EDT) Received: by mail-wr1-x434.google.com with SMTP id b17so3572192wrq.3 for ; Tue, 06 Sep 2022 12:19:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:to:subject:message-id:date:from :mime-version:from:to:cc:subject:date; bh=9mMZkQyRDaBmH/G09xTnjvHmG5/tE7RzJdnNk4K4iew=; b=jFuQ1l7CqgTKTiEE5otMkeEEV/ILrtXTcBNTmOxNIk9C5XTOlyu69AuB85pP5In5PR rP/kxxf7uw8akxFMFmFIGyaVLKEOCrcMrrUK8yq6mrZ2vNwnb+DHbygyiAyUnxZyitQG uk2TPkCaqJwR5Tfp7Iff0r+zo2bp66fFLN/c7cqjV9oN9DzFJ4lk63w/1GdRS7Gcky/y yOQp0qlUhJS1R78IgLISurDg88xCz2PVzUHSOqs5KNP6RWH6OLhp3oEPwPLVmYr4ohiO AB63lakLz7g7uz8i9ZHBF4MONKtdmBG9QTOirBFoT9lkicMIIiEbkUNRAekOMp/cNfIJ FmFg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:to:subject:message-id:date:from :mime-version:x-gm-message-state:from:to:cc:subject:date; bh=9mMZkQyRDaBmH/G09xTnjvHmG5/tE7RzJdnNk4K4iew=; b=sze2tDMUaSdDMGCQ6wr+ofUH8bk1geBnaSR5Pc5hp6R8OIdsx6pWvoX8ZvheZhSK6x IPPzxxYKQT+2/1OS1fP+lJ0WGKcG2cZxvmxyZv1njSj+foxw8Hx67as2ZAx2NUkHrRxu Lw9YVir4nxxtAkwLdySsnp6l51ve/HF5OtbtKVOkcFQPQXQKv3cyquko+1T1pK4qNsDT jpGozmpYrQAkR8qQtw/Ihm+G4OqPt1FcojakYNVVceswfnVoLuYD+7exPba84YrkHB29 WcPtvCmBuGRWb7KBvGA8AGBbK0V6Ri8lAnTvO/QYZNywGUfLwqFun8gI4WPGM/1rpZDJ xwSw== X-Gm-Message-State: ACgBeo3rt4/OxBrKY1IS6hg4EfLhFr4fPez9kWYhxDaK/mT2GCthLxU5 O+XvJDRYuVYaQyqQebZ7knmYfMRcTeD4u8AhqYIhwCDG1k0= X-Google-Smtp-Source: AA6agR5otdyC6NGYn69vpwxwD0WOiurIqXQG/YX+IbxgtcJ4nbvtH/cJlvI0IN8SYeX9rhpGdukP6fGylFSXZ5fcqSY= X-Received: by 2002:a5d:5942:0:b0:225:7425:4e39 with SMTP id e2-20020a5d5942000000b0022574254e39mr27421105wri.566.1662491991812; Tue, 06 Sep 2022 12:19:51 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Tue, 6 Sep 2022 12:19:38 -0700 Message-ID: To: Dave Taht via Starlink Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Starlink] risc-v in space X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Sep 2022 19:19:53 -0000 A bit long on marketing, but https://www.sifive.com/press/nasa-selects-sifive-and-makes-risc-v-the-go-to= -ecosystem Not a lot of chips in this market but I would love to see design tools that could output robust fpga designs in particular. The larger question I have though, is how much do we know now about rad-hardening electronics in space? I have a few tidbits I've picked up or there about fpgas, f-rams, and so on, and was passively involved in a innovative cubesat that did work (with 3 virtualized cpus) in an era where cubesats had about a 50% failure rate. and of course we see astronauts using COTS laptops. Is there a NASA parts catalog of parts that just work and of those that just don't? --=20 FQ World Domination pending: https://blog.cerowrt.org/post/state_of_fq_code= l/ Dave T=C3=A4ht CEO, TekLibre, LLC