Xref: utzoo comp.sys.m6809:993 comp.os.os9:327 Path: utzoo!attcan!uunet!mcvax!ukc!dcl-cs!nott-cs!mbm From: mbm@cs.nott.ac.uk (Mike Miller) Newsgroups: comp.sys.m6809,comp.os.os9 Subject: OS9 Acia parameters. Keywords: Acia 6551 RS-232 Message-ID: <34@robin.cs.nott.ac.uk> Date: 12 Jan 89 18:38:18 GMT Reply-To: mbm@cs.nott.ac.uk (Mike Miller) Organization: Computer Science, Nottingham Univ., UK. Lines: 19 Can any OS9 users tell me how to configure a 6551 Acia using the xmode command. I believe the parameters that need to be set are: type= baud= I have had the RS-232 working from outside OS9, so I know that the physical connections are correct. The system I am using is the Eurohard License of OS9 for the Dragon 64. I have data for the 6551s internal registers, but I can't get the interface to work setting the parameters thus: type -> Control register most significant nibble of baud -> Command register Any help appreciated. Thanks. +-------------------+---------------------------------------------------------+ | |\ |\ . | _ | Why are there 1001 reasonable ways to wire an RS-232 | | | \| \ | |/ /_\ | cable, 1001 of which are completely and utterly wrong? | | | \| |\ \_ | | +-------------------+---------------------------------------------------------+ | Mike Miller, UG, Dep. Computer Science, Nottingham University, NG7 2RD. | | JANET: mbm@Cs.Nott.AC.UK FIDONET: Mike Miller @ Node 2:257/11 (BBS09 HST) | +-----------------------------------------------------------------------------+