How is your M100 cable wired? You may be able to use it with the 102/200 cable with a little adapter.
m ----- Original Message ----- From: Jesse Huyett To: [email protected] Sent: Wednesday, May 09, 2018 8:44 AM Subject: Re: [M100] Tandy Model 100 Portable with the DVI (Disk Video Interface) Hello all, Finally got some time and was able to test using the cable my DVI came with and the M102 mentioned in the "Tandy Model 102 Portable" thread. The cable I made for the M100 isn't working, but remaking will be a project for another time. Big thanks to Brian for the disk. Great to see a successful bootup of the system. Regards On Sat, Apr 28, 2018 at 1:46 PM, Brian White <[email protected]> wrote: I don't remember what exactly the floppy controller needs. Maybe it just needs to be able to do double density. Steven Adolf has a a downloadable image of the later version disk that supports both 100/102 and 200. http://www.club100.org/memfiles/index.php?&direction=0&order=&directory=Steve%20Adolph/DVI%20boot%20disk%20files You need Teledisk (and probably DOS or at least Windows XP or lower), and an old floppy controller and a 360k drive to write the image. There are some 1.2m drives that can mostly fake 360k, but even if they do double density signal strength and rpm and kbps and write compensation, and double-step the head to do 48 tpi, there is still the problem that the physical drive head is a 96 tpi drive head and writes thinner tracks, leaving whole full tracks untouched in between, which can be full of noise or old data that would screw up when a wider 48tpi drive head tries to read it. So really, a 1.2m drive & controller than can do 360k, is really only good fro reading the old disks in a new drive, not for writing and certainly not for formatting. I have a little info on a few drives I actually tested myself here: http://tandy.wiki/Disk/Video_Interface:_Drives and the cable http://tandy.wiki/Disk/Video_Interface:_Cable I think we discussed it here recently and someone had some more definitive knowledge than this, but I can't find it right now. -- bkw On Apr 27, 2018 11:16 PM, "Jesse Huyett" <[email protected]> wrote: Hello Brian, Thank you for the response. > the right kind of drive but also the right kind of floppy controller I have been looking but been unable to find any info on this. If you have any pointers or documentation, I can try to make my own. Otherwise, ... > just send me an address and I'll mail you a disk. I can send you floppies, I can pay shipping (Paypal, Google Pay, check, ... ), ... Let me know what I can do. I'll send a PM with my address. Thanks again and super appreciate the offer. Regards, Jesse On Fri, Apr 27, 2018 at 11:57 AM, Brian White <[email protected]> wrote: It's possible to write a new floppy from a download IF you have not only the right kind of drive but also the right kind of floppy controller on a motherboard or isa card. Otherwise just send me an address and I'll mail you a disk. I happen to have a dvi set up and working at the moment so it's not inconvenient. -- bkw On Apr 27, 2018 2:22 AM, "Jesse Huyett" <[email protected]> wrote: Hello All, I have a Tandy Model 100 Portable with the DVI (Disk Video Interface). I built a cable for it I haven't been able to test since I haven't found a way to create the boot disk. I found a download of the files at club100.org ( http://club100.org/memfiles/index.php?&direction=0&order=&directory=Steve%20Adolph/DVI%20boot%20disk%20files ), but haven't been able to figure out how to create a boot disk from the images - I do have access to older computers with a 5 1/4" floppy drive. Also tried writing the disk image to an HxC figuring I can hook this into the DVI, but the HxCFloppyEmulator software doesn't recognize the image format. Ideally, I'm looking for a cable (in case I didn't make mine correctly) and a boot floppy. At minimum, wondering if anyone has experience creating a boot floppy or getting it to write to the HxCFloppyEmulator software. Regards
