https://github.com/konkotgit/PLUS-2A-FDC-LIGHT

Floppy Disk Interface for ZX Spectrum +2A/B
https://github.com/konkotgit/PLUS-2A-FDC-LIGHT

floppy-disk-interface zx-spectrum

Last synced: 20 days ago
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Floppy Disk Interface for ZX Spectrum +2A/B

• Host: GitHub
• URL: https://github.com/konkotgit/PLUS-2A-FDC-LIGHT
• Owner: konkotgit
• Created: 2022-05-22T15:03:31.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-07-17T09:15:01.000Z (over 2 years ago)
• Last Synced: 2024-07-30T21:10:06.120Z (4 months ago)
• Topics: floppy-disk-interface, zx-spectrum
• Homepage:
• Size: 582 KB
• Stars: 16
• Watchers: 5
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# PLUS-2A-FDC-LIGHT

## Floppy disk drive interface for ZX Spectrum + 2A (black)

* Floppy disk side switch.

* Standard capacity is 173K per diskette side.

* The ability to format a floppy disk to 720KB using the appropriate tools.

* READY signal enforcement for drives that do not have it.

Connecting the interface turns ZX Spectrum + 2A into ZX Spectrum +3

### Compatible fdd controller chips:

* NEC UPD765 (D765AC-2)

* Zilog Z0765A08PSC

* UMC UM8272A

### Floppy disk drive connection and jumper settings.

Make sure the drive supports DS/DD (720KB) floppy disks. 

1 x 3.5' IBM PC Drive

Use standard flat ribbon cable. 

2 x 3.5' IBM PC Drive

Use flat ribbon cable *without* twist. One drive must be wired as DS0 and second as DS1.

### Look at YouTube:

[![YouTube link](https://img.youtube.com/vi/KGCfneKMlBE/0.jpg)](https://www.youtube.com/watch?v=KGCfneKMlBE)

### Assembled interface:

![Plus 2A FDC Light Front](/photos/plus2a_fdc_light02_s.jpg)

![Plus 2A FDC Light Back](/photos/plus2a_fdc_light01_s.jpg)