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Atari ST cable question

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    #16
    In which country you are?
    <album>

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      #17
      So I have begun making my own Din 14 cable as Chuck Speculated. My question is the pinout however. This site here is a bit problematic as far as explaining anything: https://info-coach.fr/atari/hardware...Disc_Connector

      Is it simply a straight through cable pin for pin? I need someone to verify this before I can make the other side of hte cable and test it.

      Mick

      Comment


        #18
        Originally posted by 1ST1 View Post
        In which country you are?
        USA. (Apparently I need at least 5 characters in order to create a legitimate message, so this extra verbiage, while insignificant, is nonetheless necessary. No bits were harmed in the creation of this message but I suspect that the persons who authored the web-site's code may have done so. Inadvertently, of course.)

        edit: I read the Atari FAQ on the Wayback Machine and see that PAL version of the XL800 had chroma separate while NTSC did not, but that it is a common procedure to break out the signal which is available inside the case.

        But I don't mean to hijack this thread: Just point me in the right direction, thanks.

        -CH-
        Last edited by clh333; October 11, 2021, 06:26 AM.

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          #19
          Originally posted by VERAULT View Post
          So I have begun making my own Din 14 cable as Chuck Speculated. My question is the pinout however. This site here is a bit problematic as far as explaining anything: https://info-coach.fr/atari/hardware...Disc_Connector

          Is it simply a straight through cable pin for pin? I need someone to verify this before I can make the other side of hte cable and test it.

          Mick
          So anyone know the correct pinout for this 14 pin din cable? is it just a 1 to 1 straight through cable?

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            #20
            My recollection is that it is indeed 1:1 "straight through".
            Reach me: vcfblackhole _at_ protonmail dot com.

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              #21
              thanks Chuck. I dont suppose you know of a document to back that up. These things are a pain in the ass and Id rather get it right the first time. Check twice do once...

              Comment


                #22
                I only know this from having disassembled and buzzed out such a cable. Back when I was still fooling with that hunk of plastic, I used this book as my reference. It did the job. Although, as an official Atari developer, I had thousands of pages of documentation, I was never steered wrong by the book.

                You're not risking much if you get it wrong as the cable carries only signals and not power. You could hook the external drive to its power supply and probe/ground the various pins on the drive connector to confirm. (e.g., if the book says that pin 8 is MOTOR ON and pin 7 is ground, then jumpering the two pins will cause the drive motor to come on.)
                Reach me: vcfblackhole _at_ protonmail dot com.

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                  #23
                  Good stuff. Thanks Chuck.

                  Comment


                    #24
                    Originally posted by VERAULT View Post
                    So I have begun making my own Din 14 cable as Chuck Speculated.
                    You found a source for these DIN connectors? Please share!

                    Comment


                      #25
                      Originally posted by Towmater View Post

                      You found a source for these DIN connectors? Please share!
                      Umm no... No they are the things of legend at this point. 3D printing together a franken-cable! Will post photos when I build it. Its mostly done, just need to do the opposite male connector.

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                        #26
                        If that doesn't work out, drop me a line--I dug up a spare male connector in my junkbox.
                        Reach me: vcfblackhole _at_ protonmail dot com.

                        Comment


                          #27
                          I will thanks Chuck. I just need to finish wiring it as straight through. If this works I have enough parts to make 2 or 3 cables.

                          Comment


                            #28
                            Originally posted by clh333 View Post

                            USA.
                            -CH-
                            So then atari-forum.com has an 8 bit corner, there is also the atariage.com/forums/ and another very small mostly dead one forums.atari.io

                            The international Atari 8 bit computer community is not very big, most activity maybe at the german Abbuc comunity ( abbuc.de ) and in some east european countries.
                            <album>

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                              #29
                              The french/english infocoach page for the Atari ST is quite good and with that cable it will work. But if you want the real ressources, go to the docs.dev-docs.org page...
                              <album>

                              Comment


                                #30
                                Originally posted by Chuck(G) View Post
                                My recollection is that it is indeed 1:1 "straight through".
                                It is 1-to-1 straight through. The trick is that the drive select is swapped inside the drive, so in effect the drive adds the twist you find in a PC Cable.
                                The signals from the ST are also different for Floppy and None-floppy models. A non floppy model outputs both ds0 and ds1 so the first drive on the cable is "Drive 0" and the second "Drive 1".
                                A "-F" model with a floppy inside outputs DS1 on the DS0 line so any floppy connected becomes Disk 1.....
                                Hope thats clear....
                                Dave
                                G4UGM

                                Looking for Analog Computers, Drum Plotters, and Graphics Terminals.

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