+videofx Posted October 9, 2018 Share Posted October 9, 2018 Is there a special drive thats works? I have a cable thats configured for drive 3. Do you change the drive select on the 3.5" drive? I am using Corcomp controller, I go into DM2, initialize the disk, the drive light comes on and it starts to initialize then I get ERROR 16 I removed the term resistor from drive 1 The drive works perfect in my PC Thanks Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 9, 2018 Share Posted October 9, 2018 are you using a 720k disk? or a 1.44? if you are using a 1.44 try putting a label over the hd hole before formatting that will make the drive auto-set to 720k Greg 1 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted October 9, 2018 Share Posted October 9, 2018 Wot does it mean, "cable configured for drive 3" ? Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 9, 2018 Author Share Posted October 9, 2018 are you using a 720k disk? or a 1.44? if you are using a 1.44 try putting a label over the hd hole before formatting that will make the drive auto-set to 720k Greg Greg I'm using a real 720k disk Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 9, 2018 Share Posted October 9, 2018 cable should be straight through, drive select needs to be set on the drive.. unless you have configured the cable specifically for the ti controller..the pc version doesnt work 1 Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 9, 2018 Author Share Posted October 9, 2018 cable should be straight through, drive select needs to be set on the drive.. unless you have configured the cable specifically for the ti controller..the pc version doesnt work correct the cable is twisted for drive 3. What do I set the drive select to on the floppy? Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 9, 2018 Share Posted October 9, 2018 correct the cable is twisted for drive 3. What do I set the drive select to on the floppy? most 3.5" floppys only have D1 or D2 options.. depends on the drive.. got a model no? or you can get one of these: https://shift838.fwscart.com/838_DriveSelect_Board/p5569983_19020461.aspx Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 9, 2018 Author Share Posted October 9, 2018 most 3.5" floppys only have D1 or D2 options.. depends on the drive.. got a model no? or you can get one of these: https://shift838.fwscart.com/838_DriveSelect_Board/p5569983_19020461.aspx Greg with the drive select board does it override the drive settings? I am using a Mitsumi D359 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 9, 2018 Share Posted October 9, 2018 Greg with the drive select board does it override the drive settings? I am using a Mitsumi D359 Yes it retoutes the selected disk select line to d1 so you set your drive to d1 Sent from my LG-H872 using Tapatalk Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 9, 2018 Author Share Posted October 9, 2018 Yes it retoutes the selected disk select line to d1 so you set your drive to d1 Sent from my LG-H872 using Tapatalk/? So straight through cable, drive set to D1 then the board to 1,2, 3 or 4? I can use any 3.5" drive? 1 Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 9, 2018 Author Share Posted October 9, 2018 Here is the drive. I dont see a drive select Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 9, 2018 Share Posted October 9, 2018 That drive doesn't send the ready signal without modification that may be an issue also. lots of Google info on how to fix that if it's the issue Sent from my LG-H872 using Tapatalk Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 9, 2018 Author Share Posted October 9, 2018 That drive doesn't send the ready signal without modification that may be an issue also. lots of Google info on how to fix that if it's the issue Sent from my LG-H872 using Tapatalk What model 3.5 inch is the best to get? Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted October 9, 2018 Share Posted October 9, 2018 The best to get is a 720k drive.. the 1.44 drives tend to be designed for the PC in mind without drive select or ready signal jumpers.. they figured why bother if its just going in a peeceee sony, alps and toshiba drives tend to be better made.. but ymmv I have 3.5" drives on my 4/a and Geneve that are 1.44 drives and they work pretty well.. I have no idea what make/model they are I just grabbed drives that had disk select jumpers and called it good. The geneve has a hfdc which is the only controller that does HD as stated before Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 9, 2018 Author Share Posted October 9, 2018 The best to get is a 720k drive.. the 1.44 drives tend to be designed for the PC in mind without drive select or ready signal jumpers.. they figured why bother if its just going in a peeceee sony, alps and toshiba drives tend to be better made.. but ymmv I have 3.5" drives on my 4/a and Geneve that are 1.44 drives and they work pretty well.. I have no idea what make/model they are I just grabbed drives that had disk select jumpers and called it good. The geneve has a hfdc which is the only controller that does HD as stated before If anyone has any 3.5 " drives for sale that work please let me know or if you have model numbers that work thats good too! Thanks Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted October 9, 2018 Share Posted October 9, 2018 Maybe this list can help a little bit. But did I tell ? No warranties If you have more or better infos -> thanks TI-99-4A-FLOPPY-DRIVES-TI-99-v1.12a-ALL.pdf Quote Link to comment Share on other sites More sharing options...
Shift838 Posted October 10, 2018 Share Posted October 10, 2018 If anyone has any 3.5 " drives for sale that work please let me know or if you have model numbers that work thats good too! Thanks I have had good luck with Alps 1.44mb drives and decent luck with Bytecc (i think that's what they were). i just have to place a piece of tape over the HD hole in order to get a good format of 720k of course with my Myarc 80 track FDC and they work great with my 838 Drive select boards.. HERE Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted October 10, 2018 Share Posted October 10, 2018 Real 720k disks are easy enough to find. Use them with the 720k format if you want your disks to live long and prosper. 1 Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 10, 2018 Author Share Posted October 10, 2018 I have had good luck with Alps 1.44mb drives and decent luck with Bytecc (i think that's what they were). i just have to place a piece of tape over the HD hole in order to get a good format of 720k of course with my Myarc 80 track FDC and they work great with my 838 Drive select boards.. HERE How do you set the drive select if there even is one on the drive when using the 838 drive select board Quote Link to comment Share on other sites More sharing options...
+Lee Stewart Posted October 10, 2018 Share Posted October 10, 2018 I have had good luck with Alps 1.44mb drives and decent luck with Bytecc (i think that's what they were). i just have to place a piece of tape over the HD hole in order to get a good format of 720k of course with my Myarc 80 track FDC and they work great with my 838 Drive select boards.. HERE How do you set the drive select if there even is one on the drive when using the 838 drive select board The 3.5" drive is presumed set to drive #2 (for the PC world) and the 838 board’s dip switch allows switching the line for drive #2 to whatever drive # you want the controller to see, obviating the necessity of manhandling the ribbon cable to make twists, etc. ...lee Quote Link to comment Share on other sites More sharing options...
+videofx Posted October 10, 2018 Author Share Posted October 10, 2018 The 3.5" drive is presumed set to drive #2 (for the PC world) and the 838 board’s dip switch allows switching the line for drive #2 to whatever drive # you want the controller to see, obviating the necessity of manhandling the ribbon cable to make twists, etc. ...lee Thanks Lee Quote Link to comment Share on other sites More sharing options...
globeron Posted June 6, 2020 Share Posted June 6, 2020 I cannot get the 3.5" disk drive(s) to work: Geneve + Corcomp DS/DD diskcontroller: * 1x 5.25" disk drive works fine (can load everything) * 1x 3.5" disk drive with @Shift838 switch set to DSK2. * and later I also added another 3.5" disk drive as DSK3. (with separate powersupply) (this drive works fine with my normal TI-99 setup (and Corcomp controller) and it can read the disks, but not with the Geneve setup somehow). When I use DIR DSK2. or DIR B: or DIR DSK3. or DIR ? I do see the lights go on for each drive when trying, but I get a device error Is there something that need to be changed in configurations or settings somewhere? do I need to assign letters (ASSIGN B=DSK2.) or some configuration in CYA (I see for HFDC that settings can be done for diskdrives, like read speed in milliseconds - ms) (or do Chips/EPROMS have to be changed on the Corcomp Disk Controller to work with Geneve?) Quote Link to comment Share on other sites More sharing options...
+mizapf Posted June 6, 2020 Share Posted June 6, 2020 28 minutes ago, globeron said: or DIR DSK3. or DIR ? Always good for a laugh. Should be DIR C : (without space), I guess. 2 Quote Link to comment Share on other sites More sharing options...
globeron Posted June 7, 2020 Share Posted June 7, 2020 22 hours ago, globeron said: I cannot get the 3.5" disk drive(s) to work: Geneve + Corcomp DS/DD diskcontroller: * 1x 5.25" disk drive works fine (can load everything) * 1x 3.5" disk drive with @Shift838 switch set to DSK2. * and later I also added another 3.5" disk drive as DSK3. (with separate powersupply) (this drive works fine with my normal TI-99 setup (and Corcomp controller) and it can read the disks, but not with the Geneve setup somehow). When I use DIR DSK2. or DIR B: or DIR DSK3. or DIR ? I do see the lights go on for each drive when trying, but I get a device error Is there something that need to be changed in configurations or settings somewhere? do I need to assign letters (ASSIGN B=DSK2.) or some configuration in CYA (I see for HFDC that settings can be done for diskdrives, like read speed in milliseconds - ms) (or do Chips/EPROMS have to be changed on the Corcomp Disk Controller to work with Geneve?) After troubleshooting it is working now. + mounted the drive selector wrong on the 3.5 drive (strange as it looked it was working) + changed the ribbon cable, looks like it is broken - however i tried to use a 3rd diskdrive (with external power supply) but does not work. Changed the jumper to "2" = DSK3. It starts the drive but does not read the disk. But okay i have my system now with Horizon, corcomp ds/dd with 5.25 and 3.5 disk drives. 3 Quote Link to comment Share on other sites More sharing options...
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