USB FDD@1306 USB floppy adapter: Difference between revisions
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== USB_FDD@1306 == | ==USB_FDD@1306== | ||
[[File:Usb_fdd@1306_orig.jpg|200px|thumb|Front of board]] | [[File:Usb_fdd@1306_orig.jpg|200px|thumb|Front of board]] | ||
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. | ||
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. | ||
The oscillator on the board is 12 mhz. | The oscillator on the board is 12 mhz. | ||
It's sometimes listed as "UPC 699920449831" | |||
[[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=== | ===Chip pinout=== | ||
{| class="wikitable" | {| class="wikitable" | ||
| C4? || 1 || 24 || DIRECTION | |C4?||1||24||DIRECTION | ||
|- | |- | ||
| LED? || 2 || 23 || VCC +5v | |LED?||2||23||VCC +5v | ||
|- | |- | ||
| R3 || 3 || 22 || N/C | |R3||3||22||N/C | ||
|- | |- | ||
| Drive Select || 4 || 21 || N/C | |Drive Select||4||21||N/C | ||
|- | |- | ||
| Motor On || 5 || 20 || Wgate | |Motor On||5||20||Wgate | ||
|- | |- | ||
| C3? || 6 || 19 || Write Protect | |C3?||6||19||Write Protect | ||
|- | |- | ||
| USB Data+ || 7 || 18 || Track 0 | |USB Data+||7||18||Track 0 | ||
|- | |- | ||
| USB Data- || 8 || 17 || DiskChange | |USB Data-||8||17||DiskChange | ||
|- | |- | ||
| RDATA || 9 || 16 || Index | |RDATA||9||16||Index | ||
|- | |- | ||
| WDATE || 10 || 15 || HeadSelect | |WDATE||10||15||HeadSelect | ||
|- | |- | ||
| VSS || 11 || 14 || STEP | |VSS||11||14||STEP | ||
|- | |- | ||
| OSC1 || 12 || 13 || OSC2 | |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. | ||
=== Functionality === | ===Functionality=== | ||
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. | ||
=== Links === | ===Links=== | ||
* [http://old.pinouts.ru/HD/InternalDisk_pinout.shtml Floppy drive connector pinout] | |||
* [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 | *[http://old.pinouts.ru/HD/InternalDisk_pinout.shtml Floppy drive connector pinout] | ||
*[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 | |||
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
