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- Newsgroups: comp.sys.atari.8bit
- Path: sparky!uunet!caen!mtu.edu!jjmcwill
- From: jjmcwill@mtu.edu (Jeff McWilliams)
- Subject: Re: 800XL expansion port
- Message-ID: <1993Jan6.073316.10538@mtu.edu>
- Organization: Michigan Technological University
- References: <C0F4M1.609@usenet.ucs.indiana.edu>
- Date: Wed, 6 Jan 1993 07:33:16 GMT
- Lines: 75
-
- In article <C0F4M1.609@usenet.ucs.indiana.edu> jbmorris@bronze.ucs.indiana.edu (Jeff Morris) writes:
- >What is that parallel port on the back of 800XL's for? I was told when I
- >bought mine (1984) that it was "for future use".
- >How would one send information to that port?
- >
- >Let me tell you what I want to do:
- >I want to transfer text files created in AtariWriter over to IBM. I know you
- >have the files at the archive for reading Atari disks on IBM's, but can you do
- >it another way? For one, I don't have beyond DOS 3.0 on Atari, but I've got
- >MS-DOS 5.0 for IBM.
- >Could I send ascii characters out of that port or the printer/all-purpose
- >port and into some IBM port? I just want to put these files onto my hard drive
- >as text files.
- >Or is the easiest way to do something like this to use those files?
- >But you have to hook up your Atari disk drive to your IBM or something?
- >I have a 1050 Atari disk drive.
- >
-
- Jeff,
-
- Okay, the Parallel Bus Interface can allow you to plug in several
- devices, the K-Products (formerly Supra) Interface, an ICD MIO,
- or the Computer Software Services Black Box.
-
- The K-Products interface, from what I know of it, is a SCSI hard disk
- drive interface.
-
- The MIO is a SCSI/SASI hard disk interface, printer interface,
- modem interface, and has RAM which can be used as a printer spooler and/or
- a RAMDISK.
-
- The Black box has a SCSI/SASI hard disk interface, modem interface,
- printer interface, optional 64K RAM for a printer spooler, optional
- floppy disk drive interface, and has a 6502 monitor/debugger, and an
- optional disk editor/fixer.
-
- BEST Electronics sells an MPP Microport Experimenter's kit that has a
- Peripheral Interface Adaptor chip on it, so that you can experiment
- with all sorts of electronics projects with it. The book shows how
- to biuld an LED Clock, and a simply EPROM burner. You could also use
- it to experiment with Analog to Digital conversion, Digital to
- Analog conversion, sound digitization, or a do it yourself printer
- interface. It's only limited by your imagination.
-
- Bob Woolley of the San Leandro Computer Club also did a Parallel Bus
- hack called the PIO interface, which took your expanded 256K computer,
- and created two 90K disk drives out of it. You could then copy, say,
- an Infocom game into the Ramdisk, and boot and run the Infocom
- game totally out of RAM. I didn't do this hack, but it sounds really
- neat. Infocom games were notorious for always accessing the disk drive
- all the time. These games would be blazingly fast with the PIO device.
-
- As far as trasferring files between your 8 bit and your IBM PC.
- Well, you COULD build something yourself on the PBI, and write your
- own software, to communicate with the IBM, and put the IBM's printer port
- in INPUT mode... but geeze... it would be just as easy to bild the
- SIO2PC interface, which plugs into your IBM and your Atari, and
- lets you create Atari floppy disk "partitions" on your IBM hard drive..
- then you simply write to the IBm hard drive from your Atari, as if
- it were a floppy disk.
-
- Another alternative would be to get a modem interface, and run a
- null-modem cable between your Atari modem port and your IBM modem
- port. Then use something like Kermit to transfer files at 9600
- baud.
-
- Those are pretty much THE alternatives. Hope this helps.
-
- Jeff
-
- --
- Jeff McWilliams jjmcwill@mtu.edu EE Engineer --> Michigan Tech.
- Leaves Turning, falling, withering
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-