3.5 inch floppy

Hardware questions and modifications
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KenG
Posts: 239
Joined: Sat Jul 16, 2016 5:36 pm
Location: Cincinnati, Ohio

Re: 3.5 inch floppy

Post by KenG »

Is there any chance that a PCJR with the PC-Sprint board could handle a 1.44MB drive?
Enhanced PCjr with a jr-IDE (1GB DOM) and a parallel port side car with a compact flash reader and backpack 1.44mb floppy attached. Tandy video mod.
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Chuckphd53
Posts: 368
Joined: Sun May 13, 2018 9:15 am
Location: Florida, USA
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Re: 3.5 inch floppy

Post by Chuckphd53 »

I think Mike or Trixter mentioned that the Bios does not support it.
(PCJR/JR-IDE-512DOM,TandyMod,V20-10Chip,BiDir,LPT2,3FlopBrd,
USBEmulator,ZIP100,PS2Keybrd,MouseSysMouse,InternalSwitcherPS)
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ZiggyTheHamster
Posts: 46
Joined: Wed Jul 24, 2019 7:19 am

Re: 3.5 inch floppy

Post by ZiggyTheHamster »

The data rate issue is actually the floppy controller's fault. If you had a better floppy controller (that could read a faster data rate from disk), and bypassed the BIOS detection, a 1.44MB disk would just barely work on a stock system where literally nothing else was happening.
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