Difference between revisions of "USB FDD@1306 USB floppy adapter"
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== |
==USB_FDD@1306== |
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[[File:Usb_fdd@1306_orig.jpg|200px|thumb|Front of board]] |
[[File:Usb_fdd@1306_orig.jpg|200px|thumb|Front of board]] |
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This is an adapter for using full-size 3.5" floppy drives as USB floppy drives. |
This is an adapter for using full-size 3.5" floppy drives as USB floppy drives. |
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It uses an unknown 24-pin TSOP/TSSOP? microcontroller. The chip has "6520" on the underside. |
It uses an unknown 24-pin TSOP/TSSOP? microcontroller. The chip has "6520" on the underside. |
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The oscillator on the board is 12 mhz. |
The oscillator on the board is 12 mhz. |
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It's sometimes listed as "UPC 699920449831" |
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[[File:Usb_fdd@1306_Front.jpg|200px|thumb|Desoldered board]] |
[[File:Usb_fdd@1306_Front.jpg|200px|thumb|Desoldered board]] |
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=== |
===Chip pinout=== |
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{| class="wikitable" |
{| class="wikitable" |
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|C4?||1||24||DIRECTION |
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|LED?||2||23||VCC +5v |
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|R3||3||22||N/C |
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|Drive Select||4||21||N/C |
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|Motor On||5||20||Wgate |
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|C3?||6||19||Write Protect |
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|USB Data+||7||18||Track 0 |
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|USB Data-||8||17||DiskChange |
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|RDATA||9||16||Index |
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|WDATE||10||15||HeadSelect |
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|VSS||11||14||STEP |
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|OSC1||12||13||OSC2 |
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for "Drive Select" it's hooked up to DS1/DS2/DS3/DS4. |
for "Drive Select" it's hooked up to DS1/DS2/DS3/DS4. |
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=== |
===Functionality=== |
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I have an identical (presumably: I need to open my case up and double-check) unit installed in my [[rainbow floppy|main PC]]. |
I have an identical (presumably: I need to open my case up and double-check) unit installed in my [[rainbow floppy|main PC]]. |
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The drive doesn't support DD (720k) disks or 1.68mb DMF disks. |
The drive doesn't support DD (720k) disks or 1.68mb DMF disks. |
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=== |
===Links=== |
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* |
*[http://old.pinouts.ru/HD/InternalDisk_pinout.shtml Floppy drive connector pinout] |
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* |
*[https://www.ebay.com/itm/34pin-1-44mb-floppy-connecter-to-USB-adapter-cable-34-pin/233051035241 ebay auction] where I bought this, on 12/28/2018 |
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Latest revision as of 11:23, 13 February 2019
USB_FDD@1306
This is an adapter for using full-size 3.5" floppy drives as USB floppy drives. It uses an unknown 24-pin TSOP/TSSOP? microcontroller. The chip has "6520" on the underside. The oscillator on the board is 12 mhz.
It's sometimes listed as "UPC 699920449831"
Chip pinout
| C4? | 1 | 24 | DIRECTION |
| LED? | 2 | 23 | VCC +5v |
| R3 | 3 | 22 | N/C |
| Drive Select | 4 | 21 | N/C |
| Motor On | 5 | 20 | Wgate |
| C3? | 6 | 19 | Write Protect |
| USB Data+ | 7 | 18 | Track 0 |
| USB Data- | 8 | 17 | DiskChange |
| RDATA | 9 | 16 | Index |
| WDATE | 10 | 15 | HeadSelect |
| VSS | 11 | 14 | STEP |
| OSC1 | 12 | 13 | OSC2 |
Note: It seems to use the sorta-compatible Shugart interface, as it uses pin 6 which is N/C in the IBM format.
for "Drive Select" it's hooked up to DS1/DS2/DS3/DS4.
Functionality
I have an identical (presumably: I need to open my case up and double-check) unit installed in my main PC.
It identifies itself to windows as "TEAC USB UF000x USB Device", VID=0644 PID=0000.
The drive doesn't support DD (720k) disks or 1.68mb DMF disks.
Links
- Floppy drive connector pinout
- ebay auction where I bought this, on 12/28/2018