From: Bill Layer <b.layer_at_vikingelectronics.com>
Date: Wed Dec 13 09:59:37 2000


I've built several of these cables...

On Tuesday 12 December 2000 20:12, you wrote:
> Im getting ready to make a x1541 cable to connect my Commodore 64 drive to
> the parallel port of my PC. Unfortunately, the existing instructions are a
> little to cryptic for a complete novice like me. For example, how do I
> distinguish between the 25 wires in the parallel cable?

By making a chart, of the pin numbers on the connector, and then one-by-one
testing with an ohmmeter until you have determined the layout. AFAIK, there
is no universal color code for the inside of a parallel cable. However, I
took an easier (but less politically correct) approach.

I purchased a C-64 printer cable off of eBay for about $3, and cut it in
half. This gave me two cables, with a DIN-5 attached to one end of each. I
then made a color / pin chart of these cables (much easier, only 5 conductors
now...). I bought a couple of DB-25 male connectors & hoods from Radio Shack,
and soldered them onto the ends. The basic cable can be made this way in
about 20 minutes.

In one case, I made the basic X1541 cable, and in another, I made the second
design that uses the diodes. The cable with the diodes is more flexible; it
will work on just about any type of parallel port, whereas the basic X1541
*requires* a SPP (standard) parallel port. Most newer machines can change the
type of port in the BIOS, but this is a hassle, and it tends to confuse a
certain MS operating system that we will not mention.

 Is there a sequence
> I should follow? Whats the best way to connect the wires? Any advice would
> really be appreciated.

Solder the wires; that is the only way to connect them. There are also crimp
style DB connectors, but IMO, they suck (and they require additional
investment in tools). Good luck, this is a fun and very worthwhile project.
You will feel all goofy when you see that 1541 drive light come on, and data
starts moving into the PC.

Bill Layer
Sales Technician
Received on Wed Dec 13 2000 - 09:59:37 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:32:49 BST