32 replies to this topic

[jchase1970]

I bought a 3.5 inch drive from tex-in treasures last year, just plugs on to the disk controller card on the expansion. Have not tried to transfer from ti to pc or vise versa but that was my intentions. If I remember it was only about 30 dollars.

[KirkDCO]

That sounds like a viable option. In response #8 of this thread, Ciro pointed me to TI99-PC which appears to also support 3.5" disks.

[ti99userclub]

yes, i done the same work for some disks. into my PEB i have:
drive 1: floppy drive 5.25"
drive 2: floppy drive 3.5"
drive 3: HxC Sd Card Drive

so i done a copy from 5.25" to 3.5" and from pc i can read the 3.5" floppy using Ti99-pc program.

the floppy drive must be a 720kb drive not an HD 1.44Mb... (this one could not work on the PEB)... and it will be formatted at the same of a 5.25" floppydisk.

on pc you should install the omniflop driver on windows.

after that the normal pc formatted disk will be unreadable and you will read the ti99 formatted disks using TI99-PC.

[KirkDCO]

Nice! I think I've found a 3.5" drive that should work in the PEB. I just have to get it all in my hands and try it out. I'm sure I'll be asking questions again. 8^)

[ti99userclub]

Perfect, put the drive like a Dive number Two so you do not need to modify the flat Cable.

Here in Italy it's 24.15 o'clock, so i will go to sleepppp !!!

Good night

Edited by ti99userclub, Fri Jan 13, 2012 5:21 PM.

[marc.hull]

ti99userclub, on Fri Jan 13, 2012 4:59 PM, said:

the floppy drive must be a 720kb drive not an HD 1.44Mb... (this one could not work on the PEB)... and it will be formatted at the same of a 5.25" floppydisk.

Actually the Ti can use 1.44 HD drives with no modification on the TI provided you either jumper the HD detection switch on the drive or use DD (720K) floppies.
Using HD floppies also works provided the HD detection is defeated but they are very unreliable and prone to data loss in my experience. They also seem to have problems on the PC side with unreliability when used as DD disks instead of HD ones.

I have also found that when used in conjuction with 5.25" drives on the same cable then the physical order of the drives should be 3.5" first with the 5.25" at the end of the cable with proper termination. IE....... FDC -> 3.5" -> 5.25" -> termination. I have a theory that the 3.5" drives aotu termination does not work well for the older 5.25" drive and will shell it out after use (could just be that they are old and prone to failure..

Good luck...

[ti99userclub]

i found this good thread that is already discussed on atariage :-)

http://www.atariage....ve-on-a-ti994a/

[ti99userclub]

Hi !
i have purchased and tried this product:

http://www.kryoflux.com/

i converted a pair of diskette and it seems to work good...
i will do some other try in next days