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- Path: oersted.gbar.dtu.dk!c948374
- From: c948374@oersted.gbar.dtu.dk (Rask Lambertsen)
- Newsgroups: comp.sys.amiga.networking
- Subject: Re: UART in 4000
- Date: 1 Mar 1996 14:38:24 GMT
- Organization: News Server at UNI-C, Danish Computing Centre for Research and Education.
- Message-ID: <4h7250$bj5@news.uni-c.dk>
- References: <733.6625T556T1348@cris.com> <wulfraedDn4xuF.Huz@netcom.com>
- NNTP-Posting-Host: oersted.gbar.dtu.dk
- X-Newsreader: TIN [version 1.2 PL1]
-
- On Wed, 21 Feb 1996 16:59:02 GMT Dennis Lee Bieber (wulfraed@kd6mog.netcom.com) wrote:
-
- > In article <733.6625T556T1348@cris.com> kainaw@cris.com (CS Wagner) writes:
- > > I just got my hands on a 28.8k modem and I tried to use it. I've found that I
- > > can only go up to 19.2k.
-
- You must have done something wrong. How did you find that it can only
- do 19.2k?
-
- > > My suspicion is that the UART can't go faster. Doesn
- > > anyone know what kind of UART comos in a 4000? Does anyone know how to find
- > > out what UART is in your machine? I ask on #amiga every day and every day
- > > without fail only one person will reply with - UART? What's that?
- > >
- > The Amiga native serial doesn't use a UART (Universal Asynchronous
- > Receiver Transmitter, as I recall). The serial port is controlled by the CIA
- > (complex interface adapter) chips... Which are programmable for use as serial
- > or parallel (and also contain the system timers).
-
- Nope, the Amiga does have a UART in Paula. The CIA chips only handle some of
- the control lines.
-
- Paula can handle around 1 Mbit/s. The question is whether your CPU and
- serial device driver can handle. C='s serial.device is known to be slow.
- Try 8n1 or baudbandit instead.
-
- --
- Regards,
-
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- | Rask Ingemann Lambertsen | E-mail: c948374@student.dtu.dk |
- | Amiga GNU CC README maintainer | WWW: http://www.gbar.dtu.dk/~c948374/ |
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