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000283_news@watsun.cc.columbia.edu _Thu Feb 25 15:00:16 1999.msg
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From: Mickey Stein <yekkim@cts.com>
Subject: Re: Setserial High Speed Help
Date: Thu, 25 Feb 1999 11:51:14 -0800
Organization: CTS Network Services
Message-ID: <36D5A9B2.1C4B7A6F@cts.com>
To: kermit.misc@mailrelay2.cc.columbia.edu
Great --
Glad you worked it out,,,
Mick
C Lance Moxley wrote:
> In comp.os.linux.hardware Mickey Stein <yekkim@cts.com> wrote:
>
> >> This is the part that I need help with. My serial card has a 16650
> >> UART. The manufacturer says that it will go 460800bps. So you're
> >> saying that if I set the baud_base to 460800 and the divisor to 2
> >> I'll be able to get 230400bps if I use spd_cust and set my ppp to
> >> use 38400?
>
> > Well it sounds like you're on the right track for setserial. I'd give that a try.
>
> Did it and it works perfectly. Thanks a lot for the help.
>
> >> I've poured over the setserial manual but didn't figure out that
> >> 38400 would really mean something else.
>
> > Sorry: I thought it said that right on the man page for setserial.
>
> It does, but I didn't comprehend it until I read your message. I guess
> I just needed it said a different way to fully understand it.
>
> > Maybe you need to slow down and get it working at 115K first. All of these isdn modems
> > will talk to an async term emulator (like minicom or seyon or even the interactive mode
> > of kermit) at 115, but I've yet to see one that'll talk to any modem at 230K. There's a
>
> Actually I have a new 3Com/USR Courier V.90 external modem that also
> will talk to a DTE at 230400bps. That's what I used to make sure that
> I was actually talking 230400 through my serial port. If you do an &w
> followed by an i7 you will see the DTE speed that the modem is talking
> to the serial port at.
>
> It seems to do AT commands just fine at 230400 as does the Eicon Diva T/A.
>
> > Anyway.. give that setserial the way you mentioned it a try and good luck with this
> > thing. It can be done in linux and you should be able to get both b channels working
> > too.
>
> Again, thanks for clearing up what the setserial man page says.
> Everything is working like I expected it to now.
>
> --
> C Lance Moxley
> http://www.uiuc.edu/ph/www/clm