Xref: utzoo comp.sys.mac.programmer:3359 comp.sys.mac:23533
Path: utzoo!utgpu!watmath!clyde!att!occrsh!uokmax!srpenndo
From: srpenndo@uokmax.UUCP (Sean Richard Penndorf)
Newsgroups: comp.sys.mac.programmer,comp.sys.mac
Subject: RAMSDOpen
Keywords: mac, serial, port, ramsdopen, open, help
Message-ID: <2094@uokmax.UUCP>
Date: 2 Dec 88 17:47:45 GMT
Reply-To: srpenndo@uokmax.UUCP (Sean Richard Penndorf)
Distribution: na
Organization: Ultimatum Software
Lines: 22

If I use RAMSDOpen to open the serial port for use with a modem, AND
no carrier is currently connected, as soon as I make a FSWrite call to the
serial port, the program locks up and I have to re-boot.  However, if I make
an Open Driver call to open both the output and input ROM drivers, the
program works fine, with no other changes.

Anyone have any ideas WHY this is occurring?  I would prefer to use the
RAM serial drivers, but so far I have been unable.

I am using a Mac 512E with a Dove 2meg and SCSI port upgrade (MacSnap 548S).
I use, when developing, System 5.3 and Finder 6.0.  And when checking
the stand alone application at 2400 baud, I use System 6.0.1.

Any help would be greatly appreciated, and if you need more info I can
mail you portions of the source code for you check.  Thanks.


-- 
Sean 'Longstride' Penndorf
!texsun!uokmax!srpenndo                    .  .        .-----------
GEnie:  S.PENNDORF                         |  |        `---.
 ----  The WEASEL Project  ----            `--'LTIMATUM----'OFTWARE