From owner-freebsd-hackers Sat Apr 17 23: 9:13 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from ftp.dns.ne.jp (ftp.dns.ne.jp [210.155.3.5]) by hub.freebsd.org (Postfix) with ESMTP id EF51A14F29; Sat, 17 Apr 1999 23:09:07 -0700 (PDT) (envelope-from tanimura@sakuramail.com) Received: from silver.carrots (yksk0117.ppp.infoweb.ne.jp [210.131.91.81]) by ftp.dns.ne.jp (8.9.2/8.8.5) with ESMTP id PAA05613; Sun, 18 Apr 1999 15:06:24 +0900 (JST) Received: from localhost (localhost [127.0.0.1]) by silver.carrots (8.9.3+3.1W/3.7W) with ESMTP id PAA40136; Sun, 18 Apr 1999 15:06:17 +0900 (JST) To: nox@jelal.kn-bremen.de Cc: tanimura@naklab.dnj.ynu.ac.jp, zinnia@jan.ne.jp, freebsd-hackers@freebsd.org, freebsd-multimedia@freebsd.org Subject: Re: Call for Review: Voxware midi driver for serial ports From: Seigo TANIMURA In-Reply-To: Your message of "Sat, 17 Apr 1999 13:37:07 +0200" <19990417133707.A39454@saturn.kn-bremen.de> References: <19990417133707.A39454@saturn.kn-bremen.de> X-Mailer: Mew version 1.93 on Emacs 19.34 / Mule 2.3 (SUETSUMUHANA) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <19990418150617N.tanimura@sakuramail.com> Date: Sun, 18 Apr 1999 15:06:17 +0900 X-Dispatcher: imput version 980905(IM100) Lines: 44 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG From: Juergen Lock Subject: Re: Call for Review: Voxware midi driver for serial ports Date: Sat, 17 Apr 1999 13:37:07 +0200 Message-ID: <19990417133707.A39454@saturn.kn-bremen.de> nox> > nox> > For the modules with serial interfaces(most modern ones like Roland SC-88 have): nox> > nox> > nox> > nox> > 38.4kbps nox> > nox> > PC ----------------------------- Midi Module nox> > nox> > Serial Cable for the Module nox> > nox> > nox> > nox> > I got to play sequences successfully under the situation shown above. nox> > nox> > I used SC-88, with a 'computer port'. It accepts the bitrates of both 31.25kbps nox> > nox> > and 38.4kbps, transforming the signal internally. You can plug some other nox> > nox> > midi modules and instruments to the module connected to the PC. In this case nox> > nox> > the module also acts as a midi interface. nox> > nox> nox> > nox> Has anyone tried things like sending a big sysex dump to something nox> > nox> connected there? nox> > nox> > nox> > I tried sending sysex messages to display some frames of picture on the LCD of SC-88. nox> > One frame takes 64 bytes. I sent sysex at around 6-8 frames/sec for 10 seconds. nox> > I had no latency to recognize, as I experienced on sbmidi. nox> nox> I thought about that as a means to test flow control, for that I'd guess nox> you have to hook someting up on the SC-88's midi port and send _it_ nox> something big. OTOH maybe even that won't be enough, RAM is cheap today nox> and who knows how big a buffer the SC-88 has... I am afraid I have no more modules nor instruments, so I cannot do anything further. Another bad news, I tried driving my SC-88 connected directly to a PC using Windows 95 and Portman PC/S driver, to find a miserable result. I saw no midi messages come properly, so Portman PC/S should be cooking the signals in some way... Seigo TANIMURA |M2, Nakagawa Lab, Dept of Electronics & CS =========================|Faculty of Engineering, Yokohama National Univ Powered by SIEMENS, |http://www.naklab.dnj.ynu.ac.jp/~tanimura/ FreeBSD 4.0-CURRENT |http://www.sakura.ne.jp/~tcarrot/ (10th Apr 1999) & muesli.|tanimura@naklab.dnj.ynu.ac.jp tcarrot@sakuramail.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message