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- Path: news.ptd.net!news
- From: hankduck@postoffice.ptd.net (hankduckman)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: A2000 serial port too slow for 28.8K?
- Date: 13 Jan 1996 16:34:47 GMT
- Organization: ProLog - PenTeleData, Inc.
- Message-ID: <1044.6586T607T935@postoffice.ptd.net>
- References: <4cu0t7$v3i@xensei3.xensei.com> <1996Jan10.193805.11220@scala.scala.com>
- NNTP-Posting-Host: cs1-05.spa.ptd.net
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP)
-
- DH> Most modems these days can speak to the computer at a fixed rate, no
- DH> matter what the modem's actual baud rate is. This was necessary to
- DH> support any number of the smart modem protocols in use today, like
- DH> intelligent speed drop-downs, compression, etc. Compressed data can
- DH> come over at over 100KBaud with some modems.
-
- DH> You may run into trouble with the Amiga and these higher rates, in any
- DH> case. The built-in serial port isn't buffered. So when data comes it,
- DH> the CPU must be able to respond to an interrupt and read it from Paula
- DH> before the next byte comes in. This is usually better with a faster
- DH> processor, and will depend on your graphics mode and what else the
- DH> system is doing. 38.4KBaud is pushing it, no matter what you do.
-
- I'm running my 14.4 modem through my GVP serial port. I use 57600 as my link
- speed and it works perfectly. Is that a buffered port?
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- Hank Duckman from the beautiful northwest New Jersey/ running A2000, G'040@33, 32 megs ram, Picasso, Emplant, VLab, Opal
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