ronb@otc.otca.oz.au (Ron Barrett) (04/11/90)
Does anyone know where I get get my hands on a UNIX driver for a Roland
MPU-401-IPC that'll be running in a 386 box. SCO Unix/Xenix or 386-ix drivers
preferred.
Thanks in advance
Ron Barrett
Network R&D
|||| OTC ||
ACSnet: ronb@otc.oz UUCP: {uunet,mcvax}!otc.oz!ronb
PHONE: +61 2 287 4834 FAX: +61 2 287 4990root@nebulus.UUCP (Dennis S. Breckenridge) (04/11/90)
In article <1400@otc.otca.oz> ronb@otc.otca.oz.au (Ron Barrett) writes: > > Does anyone know where I get get my hands on a UNIX driver for a Roland > MPU-401-IPC that'll be running in a 386 box. SCO Unix/Xenix or 386-ix drivers > preferred. > Contact the AT&T Toolchest folks at 1-201-522-6900. There is a package called "keynote" that supports the MPU401 and provides a "AWK" like language for MIDI programming. It's not a perfect world, the timing does go awry after 6 or 7 bars. Apparently there will be a correction for SVr4 (the kernel has a better timekeeper). -- ----------------------------------------------------------------------------- Dennis S. Breckenridge (604) 277-7413 dennis@nebulus.uucp VE7TCP EMACS: Eight Megabytes And Constantly Swapping! -----------------------------------------------------------------------------
tynor@prism.gatech.EDU (Steve Tynor) (04/11/90)
In article <1400@otc.otca.oz> ronb@otc.otca.oz.au (Ron Barrett) writes: > >Does anyone know where I get get my hands on a UNIX driver for a Roland >MPU-401-IPC that'll be running in a 386 box. SCO Unix/Xenix or 386-ix drivers >preferred. Send mail to psl@bellcore.com (Peter Langston). He has a very nice toolset of MIDI/Unix tools (including a MPU device driver). All his stuff was written for Suns (3's and 386i's), but I would think that the driver could be modified to run on other flavors of Unix. I got my original version from the UUNET archives, but I think there has been an update since then. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= inherit STD_DISCLAIMER; Steve Tynor Georgia Tech Research Institute Artificial Intelligence Branch tynor@prism.gatech.edu
t31662k@kaira.hut.fi (Andreas Gustafsson) (04/11/90)
In article <1400@otc.otca.oz> ronb@otc.otca.oz.au (Ron Barrett) writes: > Does anyone know where I get get my hands on a UNIX driver for a Roland > MPU-401-IPC that'll be running in a 386 box. SCO Unix/Xenix or 386-ix drivers > preferred. A MPU-401 driver for System V 3.2 was posted to the net by Tim Thompson (tjt@twitch.att.com) some time ago. I have ported it to SCO Xenix 386. If anyone wants the Xenix version, send me mail; if there is sufficient interest I might post it. Please note that for SCO Unix and other non-Xenix systems, Thompson's original driver is probably more appropriate. -- Andreas Gustafsson Internet: gson@niksula.hut.fi Voice: +358 0 563 5592
tjt@cbnewsh.ATT.COM (timothy.j.thompson) (04/12/90)
From article <1990Apr11.112224.13861@nebulus.UUCP>, by root@nebulus.UUCP (Dennis S. Breckenridge): > In article <1400@otc.otca.oz> ronb@otc.otca.oz.au (Ron Barrett) writes: > Contact the AT&T Toolchest folks at 1-201-522-6900. There is a package > called "keynote" that supports the MPU401 and provides a "AWK" like > language for MIDI programming. It's not a perfect world, the timing > does go awry after 6 or 7 bars. Apparently there will be a correction > for SVr4 (the kernel has a better timekeeper). What kind of system were you running it on? On a 20Mhz 386 it keeps pretty good time for an arbitrarily long time, as long as the system has sufficient memory to prevent paging and is otherwise idle (e.g. uucico doesn't start up). There's no guarantees, though, so it's not a system to be used on stage. I have also seen it work well on a 16Mhz 386, although I think that may start to get marginal. As you say, SVR4 has hooks to guarantee better realtime control, although I have yet to try them out (or even get details on exactly what they are). ...Tim Thompson...AT&T Bell Labs/Holmdel/NJ...tjt@twitch.att.com...
tjt@cbnewsh.ATT.COM (timothy.j.thompson) (04/12/90)
In article <1400@otc.otca.oz> ronb@otc.otca.oz.au (Ron Barrett) writes: >Does anyone know where I get get my hands on a UNIX driver for a Roland >MPU-401-IPC that'll be running in a 386 box. SCO Unix/Xenix or 386-ix drivers >preferred. I posted a System V/386 device driver for MPU-compatible interfaces several (6?) months ago. It's available in the ucsd archives, I think. I'll mail a copy to anyone who wants it. It supports only the 'uart' mode of the MPU. ...Tim Thompson...AT&T Bell Labs/Holmdel/NJ...tjt@twitch.att.com....
root@nebulus.UUCP (Dennis S. Breckenridge) (04/12/90)
tjt@cbnewsh.ATT.COM (timothy.j.thompson) writes: >What kind of system were you running it on? On a 20Mhz 386 it keeps pretty >good time for an arbitrarily long time, as long as the system has sufficient >memory to prevent paging and is otherwise idle (e.g. uucico doesn't start up). I have tried it on a AT&T 6386 16mhz, AT&T 6386E 20mhz, Consensys 386 25mhz. It's more than a context switch that knocks the timing out. As it starts chewing up the CPU it gets less run time. I have tried it with a Caching disk controller and did see an improvment. SysVR4 has a millitick function that times out at a kernel tick as opposed to a process tick. This will give 1/100 of a second resolution. Your right about trying to use it on stage. I too, wait for the SVR4 version, what you have written so far is excellent! -- ----------------------------------------------------------------------------- Dennis S. Breckenridge (604) 277-7413 dennis@nebulus.uucp VE7TCP EMACS: Eight Megabytes And Constantly Swapping! -----------------------------------------------------------------------------