From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Kleine-Budde Subject: Re: Writing socketCAN module for my own hardware Date: Wed, 01 Oct 2014 15:11:56 +0200 Message-ID: <542BFD9C.1000308@pengutronix.de> References: <53E9C774.3040401@ep1.ruhr-uni-bochum.de> <53E9CF27.90400@pengutronix.de> <53E9D6F3.4050206@ep1.ruhr-uni-bochum.de> <53E9E614.7060303@pengutronix.de> <542BACC0.4050707@ep1.ruhr-uni-bochum.de> <542BB21B.4030200@pengutronix.de> <542BF456.3030201@ep1.ruhr-uni-bochum.de> <542BF687.1000800@pengutronix.de> <542BF9FD.5060209@ep1.ruhr-uni-bochum.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="sAR6KGSw4H1iWHKsFwKMWK8B0uAb8BwD0" Return-path: Received: from metis.ext.pengutronix.de ([92.198.50.35]:46797 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751053AbaJANMD (ORCPT ); Wed, 1 Oct 2014 09:12:03 -0400 In-Reply-To: <542BF9FD.5060209@ep1.ruhr-uni-bochum.de> Sender: linux-can-owner@vger.kernel.org List-ID: To: Florian Feldbauer , linux-can@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --sAR6KGSw4H1iWHKsFwKMWK8B0uAb8BwD0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 10/01/2014 02:56 PM, Florian Feldbauer wrote: >> BTW: what's the use-case of the rpi, better buy a beagle bone black. >> IIRC you need to attach the CAN phy, and you're ready to go. It comes >> with two internal CAN cores, the first one is quite easy to setup, the= >> second one uses the same pins as one the the I2C busses, which has to = be >> disabled then... And you can use a proper mainline kernel. > I'm working at the university for experimental hadron physik. And for > our experiment we need a low budget, high performance CANbus interface > running under Linux. High performance and bit banging in one sentence (or SoC) is a bit contradictory :) > We came up with the idea of the Rpi, since it's small, it has ethernet,= > and it is > cheap (~30 euro). And with the sja1000 connected to the GPIOs you can > achieve > the high data throughput (up to 6666 extended data frames with 8 byte > length @1Mbit/s) Beagle Bone is about ~60=E2=82=AC in single quantities. > Actually I don't know if any other embedded linux board like the beagle= > bone > was considered... :( Marc --=20 Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | --sAR6KGSw4H1iWHKsFwKMWK8B0uAb8BwD0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlQr/ZwACgkQjTAFq1RaXHNhoQCaAj+ECUWOoNTxnN5iS++UkTGj /IwAn1IXeELeOS+zOWsjghOHPehkTvUg =uA+D -----END PGP SIGNATURE----- --sAR6KGSw4H1iWHKsFwKMWK8B0uAb8BwD0--