From owner-freebsd-multimedia Sat Apr 17 6:57: 9 1999 Delivered-To: freebsd-multimedia@freebsd.org Received: from blaubaer.kn-bremen.de (blaubaer.kn-bremen.de [194.94.232.249]) by hub.freebsd.org (Postfix) with ESMTP id B111515185; Sat, 17 Apr 1999 06:57:04 -0700 (PDT) (envelope-from nox@saturn.kn-bremen.de) Received: from saturn.kn-bremen.de (uucp@localhost) by blaubaer.kn-bremen.de (8.9.1/8.9.1) with UUCP id PAA08837; Sat, 17 Apr 1999 15:50:22 +0200 Received: (from nox@localhost) by saturn.kn-bremen.de (8.9.3/8.8.5) id NAA40402; Sat, 17 Apr 1999 13:37:07 +0200 (MET DST) From: Juergen Lock Date: Sat, 17 Apr 1999 13:37:07 +0200 To: Seigo TANIMURA Cc: zinnia@jan.ne.jp, freebsd-hackers@freebsd.org, freebsd-multimedia@freebsd.org Subject: Re: Call for Review: Voxware midi driver for serial ports Message-ID: <19990417133707.A39454@saturn.kn-bremen.de> References: <19990415203307.A33640@saturn.kn-bremen.de> <19990417010250B.tanimura@sakuramail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.4i In-Reply-To: <19990417010250B.tanimura@sakuramail.com>; from Seigo TANIMURA on Sat, Apr 17, 1999 at 01:02:50AM +0900 Sender: owner-freebsd-multimedia@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sat, Apr 17, 1999 at 01:02:50AM +0900, Seigo TANIMURA wrote: > From: Juergen Lock > Subject: Re: Call for Review: Voxware midi driver for serial ports > Date: Thu, 15 Apr 1999 20:33:07 +0200 > Message-ID: <19990415203307.A33640@saturn.kn-bremen.de> > > nox> > For the modules with serial interfaces(most modern ones like Roland SC-88 have): > nox> > > nox> > 38.4kbps > nox> > PC ----------------------------- Midi Module > nox> > Serial Cable for the Module > nox> > > nox> > I got to play sequences successfully under the situation shown above. > nox> > I used SC-88, with a 'computer port'. It accepts the bitrates of both 31.25kbps > nox> > and 38.4kbps, transforming the signal internally. You can plug some other > nox> > midi modules and instruments to the module connected to the PC. In this case > nox> > the module also acts as a midi interface. > nox> > nox> Has anyone tried things like sending a big sysex dump to something > nox> connected there? > > > I tried sending sysex messages to display some frames of picture on the LCD of SC-88. > One frame takes 64 bytes. I sent sysex at around 6-8 frames/sec for 10 seconds. > I had no latency to recognize, as I experienced on sbmidi. I thought about that as a means to test flow control, for that I'd guess you have to hook someting up on the SC-88's midi port and send _it_ something big. OTOH maybe even that won't be enough, RAM is cheap today and who knows how big a buffer the SC-88 has... Regards, -- Juergen Lock To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message