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- Path: soap.news.pipex.net!pipex!usenet
- From: m.hendry@dial.pipex.com (Mathew Hendry)
- Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
- Subject: Re: serial problems
- Followup-To: comp.sys.amiga.hardware,comp.sys.amiga.misc
- Date: Thu, 14 Mar 96 23:48:12
- Organization: Private node.
- Distribution: world
- Message-ID: <19960314.59AA50.1512F@al094.du.pipex.com>
- References: <4i8pb2$i58@news2.delphi.com>
- NNTP-Posting-Host: al094.du.pipex.com
- X-Newsreader: TIN [AMIGA 1.3 950726BETA PL0]
-
- snewland (snewland@bix.com) wrote:
- : I have an A2000 w/OS3.1, a 28800
- : modem and an 040. I seem to be having some problems with my serial port.
- : Every once in a while I'll get a Serial I/O error No 6 (hardware overrun).
- : Does anyone know what causes this
-
- The Amiga serial port only has one byte of buffer space. If some other
- hardware (e.g. hard disk controller, graphics chips; just about anything) has
- control of the bus for too long, what was in the buffer will be replaced by
- new data without being read - i.e. buffer overrun.
-
- : how it might be fixed.
-
- Lower the baud rate you use between the serial port and the modem. I find
- 38400 safe on my A500+ - anything above that and I get problems due to my
- GVP hard disk controller hogging the bus for too long while reading/writing
- data.
-
- Alternatively, buy a serial card, which should allow you to reach 115,200
- bps between serial port and modem without any troubles.
-
- -- Mat.
-