Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!husc6!linus!raybed2!applicon!bambi!peterson!peterson
From: peterson@peterson.applicon.UUCP
Newsgroups: comp.sys.mac.programmer
Subject: Reading chars from serial port
Message-ID: <77900004@peterson>
Date: 20 Jul 88 10:55:00 GMT
Lines: 20
Nf-ID: #N:peterson:77900004:000:726
Nf-From: peterson.applicon.UUCP!peterson    Jul 20 06:55:00 1988


I want to read (at fairly high speed) characters from the serial port
until I get a certain character.  It would also be nice to timeout
if there is a large blank period.

The Serial Driver routines are not explained very clearly in Inside Mac.
I'm not sure if FSRead is capable of reading less characters than you
specify (I'm not sure how many characters will be read - only that
the last character is a known value).  I am trying to read about 64K.

This task was easy on my old PC.  I just wrote a tight loop polling the
serial port.  But the Mac does not seem to have an equivalent "GetChar."

Somebody must have done this; please help me!

Joe Peterson
Schlumberger
Billerica, Ma

uucp:  ...mit-eddie!applicon!peterson