First, my thanks to:
Kevin.Sheehan@uniq.com.au (Kevin Sheehan {Consulting Poster Child})
Glenn.Satchell@uniq.com.au (Glenn Satchell - Uniq Professional Services)
pavlovm@toexpres.com (Misha Pavlov)
risto@genie.kiva.com (Risto M. Tolonen)
celeste@xs.com (Celeste Stokely)
bern@penthesilea.uni-trier.de (Jochen Bern)
David Fan <david@magma.COM>
"Chris Phillips" <chris@otter.cs.yorku.ca>
ed@magma.COM (Ed Romascan)
"Brian Terry" <bet@justlaw.com>
Basically, it officially supports 19.2bps in synchronous mode and
38.4bps in asynchronous mode.
Some people have managed to do 38.4 in synchronous mode as well.
It's possible to go even higher than 38.4 with kernel modifications
(4.x -- see included responses).
Thanks again to all respondents,
LT
Here are the actual responses:
>From kevin@uniq.com.au Mon Mar 20 02:20:18 1995
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From: Kevin.Sheehan@uniq.com.au (Kevin Sheehan {Consulting Poster Child})
Date: Mon, 20 Mar 1995 17:18:27 EST
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To: Lenny Turetsky <lturetsk@econ.yale.edu>
Subject: Re: maximum serial port speed of a Sparc1?
Status: RO
X-Status:
[ Regarding "maximum serial port speed of a Sparc1?", lturetsk@econ.yale.edu writes on Mar 19: ]
> Could someone please tell me the maximum serial port speed of a
> Sparc1?
The chip - 76.8Kb in the standard config. Normal serial driver, 38.4Kb
for setup. Realistic ability to deal with full stream - depends on the
application and the speed, but SUn doesn't warrant above 9600.
Sun also have high speed serial ports that are used for the 1MB/s stuff.
l & h,
kev
>From glenn@uniq.com.au Mon Mar 20 05:08:45 1995
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From: Glenn.Satchell@uniq.com.au (Glenn Satchell - Uniq Professional Services)
Message-Id: <9503200835.AA03366@upstage.uniq.com.au>
To: lturetsk@econ.yale.edu
Subject: Re: maximum serial port speed of a Sparc1?
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I'm pretty sure that 38400 is the highest speed that the kernel
knows about. We happily run a bunch of SS1+ at 38400 talking to a
modem. I remember seeing some hacks in a news article about how to make
it go higher but I dopn't know how erliable that is.
regards,
-- Glenn Satchell glenn@uniq.com.au | There's a fine line Uniq Professional Services Pty Ltd ACN 056 279 335 | between fishing and PO Box 70, Paddington, NSW 2021, (Sydney) Australia | standing on the shore Phone 02 380 6360 Pager 016 287 000 Fax 02 380 6416 | looking like an idiot.> From sun-managers-request@uniq.com.au Mon Mar 20 17:26 EST 1995 > Date: Sun, 19 Mar 1995 22:20:33 -0500 (EST) > From: Lenny Turetsky <lturetsk@econ.yale.edu> > Reply-To: Lenny Turetsky <lturetsk@econ.yale.edu> > To: Sun Managers <sun-managers@ra.mcs.anl.gov> > Subject: maximum serial port speed of a Sparc1? > X-Lines: 15 > > Could someone please tell me the maximum serial port speed of a > Sparc1? > > TIA, > LT > > > ,-----------------------------------------------------. > | Yale Economics Dep't | Lenny Turetsky | > | System Administrator | lturetsk@econ.yale.edu | > |-------------------------+---------------------------| > | My employers paid for some of my time and energy. | > | My opinions were never for sale. | > `-----------------------------------------------------' >
>From pavlovm@toexpres.com Mon Mar 20 07:42:39 1995 Received: from columbus.toexpres.com by aida.econ.yale.edu; Mon, 20 Mar 95 07:42:39 EST Received: by columbus.toexpres.com (4.1/SMI-4.1) id AA02538; Mon, 20 Mar 95 07:44:08 EST Date: Mon, 20 Mar 95 07:44:08 EST From: pavlovm@toexpres.com (Misha Pavlov) Message-Id: <9503201244.AA02538@columbus.toexpres.com> To: lturetsk@econ.yale.edu Subject: Re: maximum serial port speed of a Sparc1? Status: RO X-Status:
>Could someone please tell me the maximum serial port speed of a >Sparc1? Desktop SPARC Hardware Owner's Guide page59 The maximum baud rate for Desktop SPARCstation serial ports is 19200 baud in asynchronous mode, and 38400 baud in synchronous mode.
I am using it at 38400 baud in asynchronous mode with no problems, but a few harmless zs overflows occurs during files transfer. I believe SPARC1, 2 and many others using same (zylog ?) chip.
>From genie!genie.kiva.com!risto@xmission.xmission.com Mon Mar 20 09:01:25 1995 Received: from xmission.xmission.com by aida.econ.yale.edu; Mon, 20 Mar 95 09:01:25 EST Received: (from admn@localhost) by xmission.xmission.com (8.6.10/8.6.10) id HAA25903 for lturetsk@econ.yale.edu; Mon, 20 Mar 1995 07:01:22 -0700 >Received: by kiva.com (5.x/SMI-SVR4) id AA20430; Mon, 20 Mar 1995 06:59:00 -0700 Date: Mon, 20 Mar 1995 06:59:00 -0700 From: risto@genie.kiva.com (Risto M. Tolonen) Message-Id: <9503201359.AA20430@kiva.com> To: lturetsk@econ.yale.edu Subject: Re: maximum serial port speed of a Sparc1? X-Sun-Charset: US-ASCII Content-Type: text Content-Length: 328 Status: RO X-Status:
> Could someone please tell me the maximum serial port speed of a > Sparc1?
38.4K ============================================================================== Risto Tolonen Tel: (801)261-2617 Internet: risto@kiva.com KIVA Fax: (801)268-8262 ==============================================================================
>From xs.com!celeste@stokely.mtview.ca.us Mon Mar 20 10:00:54 1995 Received: from uucp9.netcom.com by aida.econ.yale.edu; Mon, 20 Mar 95 10:00:54 EST Received: from stokely.UUCP by netcomsv.netcom.com with UUCP (8.6.9/SMI-4.1) id GAA13373; Mon, 20 Mar 1995 06:51:40 -0800 Received: from celestial.xs.com by xs.com (4.1/se.main.cf.6.23.93) id AA27630; Mon, 20 Mar 95 06:28:11 PST Received: by celestial.xs.com (5.0/SMI-SVR4) id AA15755; Mon, 20 Mar 95 06:28:10 PST Date: Mon, 20 Mar 95 06:28:10 PST From: celeste@xs.com (Celeste Stokely) Message-Id: <9503201428.AA15755@celestial.xs.com> To: lturetsk@econ.yale.edu Subject: Re: maximum serial port speed of a Sparc1? X-Sun-Charset: US-ASCII Content-Length: 1656 Status: RO X-Status:
On a cpu port, you can run 19200 reliably, 38400 is possible. Higher than that requires a kernel patch, and it's completely unreliable.
..Celeste Stokely, Unix System Administration Consultant, Stokely Consulting EMAIL: celeste@xs.com Voice Line: 415-967-6898 / FAX: 415-967-0160 USMAIL Address: Stokely Consulting/211 Thompson Square/Mountain View CA 94043 ------------------------------------------------------------------------ If you want "Celeste's Tutorial on Solaris 2.x Modems & Terminals" send email to celeste@xs.com and ask for it. Latest rev is 1.2, 2/16/95 ------------------------------------------------------------------------
- From xs-sun-mgrs-request@stokely Sun Mar 19 20:50 PST 1995 - Return-Path: <sun-managers-relay@ra.mcs.anl.gov> - Sender: sun-managers-relay@ra.mcs.anl.gov - Precedence: junk - Date: Sun, 19 Mar 1995 22:20:33 -0500 (EST) - From: Lenny Turetsky <lturetsk@econ.yale.edu> - Reply-To: Lenny Turetsky <lturetsk@econ.yale.edu> - To: Sun Managers <sun-managers@ra.mcs.anl.gov> - Subject: maximum serial port speed of a Sparc1? - Mime-Version: 1.0 - Status: RO - - Could someone please tell me the maximum serial port speed of a - Sparc1? - - TIA, - LT - - - ,-----------------------------------------------------. - | Yale Economics Dep't | Lenny Turetsky | - | System Administrator | lturetsk@econ.yale.edu | - |-------------------------+---------------------------| - | My employers paid for some of my time and energy. | - | My opinions were never for sale. | - `-----------------------------------------------------' -
>From bern@penthesilea.uni-trier.de Mon Mar 20 11:30:08 1995 Received: from penthesilea.uni-trier.de by aida.econ.yale.edu; Mon, 20 Mar 95 11:30:08 EST Received: by penthesilea.Uni-Trier.DE (4.1/2.00) id AA08101; Mon, 20 Mar 95 17:29:16 +0100 Date: Mon, 20 Mar 95 17:29:16 +0100 From: bern@penthesilea.uni-trier.de (Jochen Bern) Message-Id: <9503201629.AA08101@penthesilea.Uni-Trier.DE> To: lturetsk@econ.yale.edu Subject: Re: maximum serial port speed of a Sparc1? Reply-To: bern@uni-trier.de Organization: CS Dpt., University of Trier, Germany Status: RO X-Status:
> Could someone please tell me the maximum serial port speed of a > Sparc1?
Most probably same as SS2:
SUN "supports" up to 19k2, 38k4 is Max for plain Vanilla Systems, more can be gotten with Kernel Tweaking.
(The Hardware can do more than 38k4, but there are no more Code Bits left in the Kernel's Descriptor Field for serial Devices.)
Oh, all that for 4.x, just in Case they wised up.
Regards, J. Bern -- /\ /""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""\ / \/ bern@uni-trier.de (7Bit,Size Limit!) | P.O. Box 1203 | Ham: \/\ / J. \ bern@ti.uni-trier.de (8Bit,SUN Att.) | D-54202 Trier | DD0KZ / \ \Bern/ No Finger etc.; Use Mail (Subj. "##" for Autoreply List) and \ / \ /\ WWW. /\/ \/ \____________________________________________________________/
>From david@magma.COM Mon Mar 20 12:27:55 1995 Received: from nic.cerf.net by aida.econ.yale.edu; Mon, 20 Mar 95 12:27:55 EST Received: from magma.COM (magma.com [134.24.10.232]) by nic.cerf.net (8.6.10/8.6.9) with SMTP id JAA15524 for <lturetsk@econ.yale.edu>; Mon, 20 Mar 1995 09:27:51 -0800 Received: by magma.COM (4.1/SMI-4.1) id AA00589; Mon, 20 Mar 95 09:33:17 PST Date: Mon, 20 Mar 1995 09:33:16 -0800 (PST) From: David Fan <david@magma.COM> Subject: Re: maximum serial port speed of a Sparc1? To: Lenny Turetsky <lturetsk@econ.yale.edu> In-Reply-To: <Pine.SUN.3.91.950319221931.6435E-100000@aida.econ.yale.edu> Message-Id: <Pine.3.89.9503200919.A574-0100000@mrt> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Status: RO X-Status:
On Sun, 19 Mar 1995, Lenny Turetsky wrote:
> Could someone please tell me the maximum serial port speed of a > Sparc1?
38400bps with flow control.
- David <*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*> David Fan Email: dfan@magma.com MAGMA Tel: (619) 457-0750 6725 Mesa Ridge Road #100, Fax: (619) 457-0798 San Diego, CA 92121 <*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*>
>From chris@otter.cs.yorku.ca Mon Mar 20 13:03:28 1995 Received: from otter.cs.yorku.ca by aida.econ.yale.edu; Mon, 20 Mar 95 13:03:28 EST Received: by cs.yorku.ca (8.6.10/YU_CS_869.1.1) id NAA10728; Mon, 20 Mar 1995 13:03:25 -0500 Date: Mon, 20 Mar 1995 13:03:25 -0500 From: "Chris Phillips" <chris@otter.cs.yorku.ca> Message-Id: <199503201803.NAA10728@cs.yorku.ca> To: lturetsk@econ.yale.edu Subject: Re: maximum serial port speed of a Sparc1? Status: RO X-Status:
Hi LT
I am running a sparc 1/sunos 4.1.3 at 76800 baud/19.2 baud ZyXel (Soon to be v.34) with ppp2.1.2 ... (I intend to run netbsd on this eventually but havent found it reliable enough yet.)
(The 76800 speed is using the 50 baud slot (0'd), there is a writeup in the dp2.3 files... I will copy it to you.)
It gets the odd SILO overrun but with ppp thats not really a problem. (Even after 100513-04)
Chris Phillips (chris@cs.yorku.ca)
>From "dp2.3/doc/DialupPPP":
|So, there is a little room for going faster. Unfortunately, there is |not a 57600 baud rate available. However, some modems can handle 76800 |(such as the Telebit Worldblazer), and that can be set just as easily. |By default, the "-DFASTSZ" flag is set in the Makefile.hw file. |So, code will be compiled into the program that will recognize |76800 as a valid baud rate. Since all 16 table entries are used up, |we must replace one of the unused baud rate divisors with a 0 divisor. |I have never seen anyone use 50 baud devices. The code that recognizes |76800, uses the table entry for 50 baud. | |In order to modify the kernel table for the zs divisors, use the |following adb commands: | | | # adb -w -k /vmunix /dev/mem | zs_speeds/16d | _zs_speeds: | _zs_speeds: 0 3070 2046 1394 1140 1022 766 510 | 254 126 83 62 30 14 6 2 | zs_speeds+2/w0 | _zs_speeds+2: 0xbfe = 0x0 | zs_speeds/16d | _zs_speeds: | _zs_speeds: 0 0 2046 1394 1140 1022 766 510 | 254 126 83 62 30 14 6 2 |
>From ed@magma.COM Mon Mar 20 13:25:58 1995 Received: from nic.cerf.net by aida.econ.yale.edu; Mon, 20 Mar 95 13:25:58 EST Received: from magma.COM (magma.com [134.24.10.232]) by nic.cerf.net (8.6.10/8.6.9) with SMTP id KAA23668 for <lturetsk@econ.yale.edu>; Mon, 20 Mar 1995 10:25:55 -0800 Received: by magma.COM (4.1/SMI-4.1) id AA00876; Mon, 20 Mar 95 10:32:03 PST Date: Mon, 20 Mar 95 10:32:03 PST From: ed@magma.COM (Ed Romascan) Message-Id: <9503201832.AA00876@magma.COM> To: lturetsk@econ.yale.edu Subject: Re: maximum serial port speed of a Sparc1? Status: RO X-Status:
Lenny -
We offer SBus boards for SPARC 1s that go up to 256,000 bits per second. Prices start at $275. Contact sales@magma.com.
Ed ------------------------------------------------------------ _/ _/ _/ _/_/_/ _/ _/ _/ _/_/ _/_/ _/ _/ _/ _/ _/_/ _/_/ _/ _/ _/ _/_/ _/ _/ _/ _/ _/ _/_/ _/ _/ _/ _/ _/ _/ _/_/_/_/ _/ _/_/_/ _/ _/ _/ _/_/_/_/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/_/_/ _/ _/ _/ _/ ------------------------------------------------------------ Ed Romascan email: ed@magma.com MAGMA Tel: (619) 457-0750 6725 Mesa Ridge Road #100, Fax: (619) 457-0798 San Diego, CA 92121 ------------------------------------------------------------
>From bet@justlaw.com Mon Mar 20 14:31:39 1995 Received: from tigger.jvnc.net by aida.econ.yale.edu; Mon, 20 Mar 95 14:31:39 EST Received: from justlaw.jvnc.net by tigger.jvnc.net with SMTP id AA02634 (5.65c/IDA-1.4.4 for lturetsk@econ.yale.edu); Mon, 20 Mar 1995 14:31:35 -0500 Received: from justlaw.com (rhino) by justlaw.jvnc.net (4.1/SMI-4.1) id AA09957; Mon, 20 Mar 95 13:13:53 EST Received: by justlaw.com (4.1/SMI-4.1) id AA13722; Mon, 20 Mar 95 13:09:00 EST Message-Id: <9503201809.AA13722@justlaw.com> From: "Brian Terry" <bet@justlaw.com> Date: Mon, 20 Mar 95 13:08:59 EST To: lturetsk@econ.yale.edu Subject: Re: maximum serial port speed of a Sparc1? Mime-Version: 1.0 Content-Type: Text/Plain; Charset=US-ASCII Content-Transfer-Encoding: 7BIT Status: RO X-Status:
I believe that it is documented as being good to 38,400 but I have never found it to be good past 19,200.
,-----------------------------------------------------. | Yale Economics Dep't | Lenny Turetsky | | System Administrator | lturetsk@econ.yale.edu | |-------------------------+---------------------------| | My employers paid for some of my time and energy. | | My opinions were never for sale. | `-----------------------------------------------------'
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