Article View: comp.sys.amiga.tech
Article #3153Re: AMIGA too slow for speeds higher than 9600 Baud? HELP!
From: sullivan - segall
Date: Sun, 15 Apr 1990 01:50
Date: Sun, 15 Apr 1990 01:50
29 lines
1870 bytes
1870 bytes
>
>** Begin quote **
>
>The problems stem from a combination of hardware and software. The
>hardware problem is the Paula chip, which implements the serial
>interface. It is slightly dumb; software must calculate parity and
>provide the start and stop bits, because Paula provides little more
>than a shift register. The software must also provide the handshaking,
>whether XON/XOFF or RTS/CTS (7-wire).
>
Hey, this is EXACTLY what I need. Does anyone know what the maximum
sustained serial output rate is for the PAULA chip w/o start and stop
bits? (I need to output a serial data stream that is *continuous* ie:
has no start or stop bits, only periodic synch words.)... hmmm.
Btw: just looked in the hardware manual at the description of the output
register and it seems to enforce one start bit. Oh well.
-Sullivan Segall
_________________________________________________________________
/V\ Sullivan was the first to learn how to jump without moving.
' Is it not proper that the student should surpass the teacher?
To Quote the immortal Socrates: "I drank what?" -Sullivan
_________________________________________________________________
Mail to: ...sun!portal!cup.portal.com!Sullivan or
Sullivan@cup.portal.com
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!dali!ogicse!decwrl!fernwood!portal!cup.portal.com!Sullivan From: Sullivan@cup.portal.com (sullivan - segall) Newsgroups: comp.sys.amiga.tech,comp.sys.amiga.hardware Subject: Re: AMIGA too slow for speeds higher than 9600 Baud? HELP! Message-ID: <28954@cup.portal.com> Date: 15 Apr 90 01:50:33 GMT References: <02373.AA02373@spirit.kref.sub.org> <19640@grebyn.com> Distribution: na Organization: The Portal System (TM) Lines: 29