vicc@unix.cie.rpi.edu (11/10/89)
I've got a 5.25" floppy w/cable to connect to the ST. How do I get the ST to use the drive? Is it a TOS porblem (I've got an oldish system but I don't know what version of TOS - certainly not 1.4) The drive spins when I access B: even though it asks for a disk in A: so something is going right. -- Frank Filz Center For Integrated Electronics Rensselaer Polytechnic Institute vicc@unix.cie.rpi.edu
clf3678@ultb.UUCP (C.L. Freemesser) (11/11/89)
In article <1989Nov10.062019.19498@rpi.edu> vicc@unix.cie.rpi.edu () writes: >I've got a 5.25" floppy w/cable to connect to the ST. How do I get the >ST to use the drive? Is it a TOS porblem (I've got an oldish system >but I don't know what version of TOS - certainly not 1.4) The drive >spins when I access B: even though it asks for a disk in A: so >something is going right. > There are a few things you have to do to get it to work: 1) Remove the resistor terminator pack 2) Track down a 150 Ohm resistor that's tied to the +5V line. This resistor brings the voltage down to 2.5V when the drive is called. However, the Atari needs it to be 0V. Replace it with a 1K Ohm resistor. 3) Get a copy of the PCF554.PRG program. You have to slow down the access to drive B (the 5.25 inch drive) to 6ms. It cannot reliably access the drive at 3ms. You'll also have to use a program like DC Format 3.02 to format the disks. You cannot format them using the desktop. Also, you will have to mess with the different jumper blocks on the board to find the correct configuration. Chris Freemesser, Rochester Institute of Technology :BITNET:%clf3678@RITVAX ||| ____________ :GEnie: C.FREEMESSER ||| /___ / (and 8-bit too!) :USENET: Don't bother, / | \ ______/ / : it doesn't work Call the A.C.O.R.N BBS (716)436-3078, 300/1200 baud :<-or my BBS
vicc@unix.cie.rpi.edu (VICC Project (Rose)) (11/19/89)
In article <1602@ultb.UUCP> clf3678@ultb.UUCP (C.L. Freemesser) writes: >There are a few things you have to do to get it to work: > >1) Remove the resistor terminator pack ok, easy enough >2) Track down a 150 Ohm resistor that's tied to the +5V line. This > resistor brings the voltage down to 2.5V when the drive is called. > However, the Atari needs it to be 0V. Replace it with a 1K Ohm > resistor. oh ick!, will it still work for a pc this way? >3) Get a copy of the PCF554.PRG program. You have to slow down > the access to drive B (the 5.25 inch drive) to 6ms. It cannot > reliably access the drive at 3ms. where might I find this? If I mailed you a disk and an SSAE to return it could you give it to me? I have very limited net access (via long distance so it might be cheaper to do so) > >You'll also have to use a program like DC Format 3.02 to format the >disks. You cannot format them using the desktop. Also, you will have >to mess with the different jumper blocks on the board to find the >correct configuration. Formatting, no problem, the pc across the room will do that! Fiddling with the jumpers seems not to be a problem. Thank you greatly for your assistance. -- Frank Filz Center For Integrated Electronics Rensselaer Polytechnic Institute vicc@unix.cie.rpi.edu -- --russ (nelson@clutx [.bitnet | .clarkson.edu]) Live up to the light thou hast, and more will be granted thee. A recession now appears more than 2 years away -- John D. Mathon, 4 Oct 1989. I think killing is value-neutral in and of itself. -- Gary Strand, 8 Nov 1989.