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From: pgc@csadfa.cs.adfa.oz.au (Phil Clark)
Newsgroups: comp.sys.apple2
Subject: Help please!!
Keywords: Apple IIc, Basic, Serial port, print, trace
Message-ID: <2258@ccadfa.adfa.oz.au>
Date: 13 Feb 91 02:28:42 GMT
Sender: news@ccadfa.adfa.oz.au
Lines: 32


G'day to you all out there in netland!

I have a problem with my Apple IIc and ALL versions of PRODOS basic that I
have come across. I have not been able to get an answer from any of the
Apple agents, or even from what is supposed to be Apple themselves in Oz.

My problem is that when attempting to output characters from either serial
port, either to a printer or other device, using the Basic "print" command, 
extra charaters preceed the real output.  This appears to be because the 
program (Basic) seems to go into "Trace" mode of its own accord. The extra 
characters that are sent out are "# (Line No.)". I have tried using the 
"NOTRACE" command but it still outputs at least one set of the trace hash 
and line number before the first charater of real data.

Has anyone else come across this and if so, what is the solution.

I am trying to use a couple of simple Basic programs to control a receiver
and I need to be able to read in data via a serial port and to output data
via the same port. The extra characters preceeding the proper output screw
up the receiver or just cause it to ignore the data.

Please Email replies to the address below and if it seems like something
of general interest I will post a summary.

Thanks in advance.


Phil Clark [VK1PC]         Department of Computer Science,     Phone: 
                           Australian Defence Force Academy,   +61 6 268 8157
Email:                     Northcott Drive, Campbell,          Fax:
pgc@csadfa.cs.adfa.oz.au   Canberra, Australia, 2600.          +61 6 268 8581