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Coffee House => Coffee House Boards => CH / Science and Technology => Topic started by: motorollin on December 27, 2007, 07:14:03 PM

Title: C64 1581 data cable
Post by: motorollin on December 27, 2007, 07:14:03 PM

Does anyone know the pinout for a 1581 data cable? I need to build a cable to connect it to my C64.

--
moto

Title: Re: C64 1581 data cable
Post by: Speelgoedmannetje on December 27, 2007, 08:49:10 PM

From This (http://personalpages.tds.net/~rcarlsen/cbm/pinouts.txt) site:

Quote

This is the pinout for the serial port of the C64/C128. It is shown
facing the rear of the computer. Pinout is the same for CBM drives, but
then pins 3 and 6 are inputs. Serial cables are wired "straight through",
that is, pin 1 to pin 1, pin 2 to pin 2, etc.

                     5         1

                          6

                     4         2
                          3

PIN    SIGNAL DIRECTION   DESCRIPTION
 1     /SRQ   IN   Enables fast serial, 128 mode only with 1571/81.
 2   GND      Logic ground.
 3   ATN   I/O   Logic low = interrupt, then quiry for device #.
 4   CLK   I/O   Clock - timing for slow serial data.
 5   DATA   I/O   Data to/from computer/drive.
 6   /RST   OUT   Logic low pulse from computer = reset periferals.

As you can see, the disk drive needs to be connected to the serial port of the Commodore 64

Title: Re: C64 1581 data cable
Post by: motorollin on December 27, 2007, 08:53:53 PM

Cheers mate! Looks like the pinout isn't important since the cable is straight through anyway.

Thanks again :-D

--
moto

Title: Re: C64 1581 data cable
Post by: Speelgoedmannetje on December 27, 2007, 08:58:33 PM

You're welcome :-)