2019-01-18 14:58:46 +00:00
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# 1541-Parallel_Adapter
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2019-01-18 16:12:29 +00:00
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This is an adapter to easier add a parallel port for the Commodore 1541 and 1541-II diskette drive.
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2019-02-06 22:06:48 +00:00
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You can (and should) read more on Peter's site https://ist.uwaterloo.ca/~schepers/1541par.html
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2019-01-18 16:02:45 +00:00
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Item list.
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* 15CM 10 wire flatcable.
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2019-02-06 22:06:48 +00:00
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* or 8 wire flatcable for ZoomFloppy.
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2019-02-06 22:29:27 +00:00
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* 15pin D-sub female(not the VGA type connector), either solder or for IDC ribbon cable (last one recommended).
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2019-01-18 16:02:45 +00:00
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* 40 pins IC socket.
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* 2 x 20 pins sil header male-male. (turned/tulip recommended).
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All items can be found on eBay or your favorite electronics pusher.
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2019-01-18 20:10:38 +00:00
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**Let the PCB be as thin as possible, otherwise you need thicker washers. Testet is a 0.8mm thick adapter. **
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2019-01-18 16:13:20 +00:00
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2019-02-06 22:15:49 +00:00
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Washers are needed for the 1541-II drive to lift the mechanical parts.
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1.6mm (2 x 0.8mm) height with an inner diameter of 4mm is just sufficient to lift the drive.
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It hasn't been physically testet on a 1541 drive, if you're intending to use this drive, let me know how it fits, so I can update this document.
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2019-01-18 16:02:45 +00:00
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2019-02-06 22:15:49 +00:00
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Connecting the adapter to ZoomFloppy is described below, if you need to connect the drive to a C64, you should visit Peter's site for more help.
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2019-02-06 22:06:48 +00:00
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2019-06-29 13:50:22 +00:00
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On 1541 shortboard the chip is UC3, and on the long board it's UAB1.
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2019-02-06 22:06:48 +00:00
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For solder pins
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Adapter | 15pin D-sub female
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------------ | -------------
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Pin 1 | Pin 1
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Pin 2 | Pin 2
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Pin 3 | Pin 3
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Pin 4 | Pin 4
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Pin 5 | Pin 5
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Pin 6 | Pin 6
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Pin 7 | Pin 7
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Pin 8 | Pin 8
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Soldering the cable for this is just the same pinout
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15pin D-sub male | 15pin D-sub female
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------------ | -------------
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Pin 1 | Pin 1
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Pin 2 | Pin 2
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Pin 3 | Pin 3
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Pin 4 | Pin 4
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Pin 5 | Pin 5
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Pin 6 | Pin 6
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Pin 7 | Pin 7
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Pin 8 | Pin 8
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2019-02-06 22:17:55 +00:00
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If you choose to use the connector to press the IDC connector and don't want to use a 15 pin cable wasting 7 wires, you can hook it up like this.
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2019-02-06 22:06:48 +00:00
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Adapter | 15pin D-sub female (IDC)
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------------ | -------------
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Pin 1 | Pin 1
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Pin 2 | Pin 9
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Pin 3 | Pin 2
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Pin 4 | Pin 10
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Pin 5 | Pin 3
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Pin 6 | Pin 11
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Pin 7 | Pin 4
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Pin 8 | Pin 12
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The cable should be soldered accordingly
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15pin D-sub female | 15pin D-sub male
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------------ | -------------
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Pin 1 | Pin 1
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Pin 2 | Pin 9
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Pin 3 | Pin 2
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Pin 4 | Pin 10
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Pin 5 | Pin 3
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Pin 6 | Pin 11
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Pin 7 | Pin 4
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Pin 8 | Pin 12
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2019-01-18 16:02:45 +00:00
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2019-01-18 16:12:29 +00:00
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Many thanks to [Peter Schepers](https://ist.uwaterloo.ca/~schepers/1541par.html).
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