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| Re: How does the C64/128 to 1541 parallel cable work ? [message #158493 is a reply to message #158490] |
Mon, 20 February 2006 19:20   |
Stealth
Messages: 164
Registered: June 2005
Karma: 0
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Senior Member |
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Thus spoke Mark Smith:
> Hi there,
> I've seen various references to having a 1541 with a parallel interface
> ... how does this work ? Where does it plug in ? And what else needs
> to be done on the C64/128 and 1541 to make it work ? (ROM changes ?)
Put simply, the VIA#1 chip inside the 1541 gets some of its pins rerouted
into a parallel port you either drill and bolt onto the backplate, or you
have a parallel cable dangling out. It plugs into the userport of the C=
machine. The C= itself doesn't get modified, although you will need
dedicated software for it since it uses custom drive routines.
If it's a 1541 drive, you won't need adjustments. If it's a 1541C, it needs
both the connection stripped and the ROM swapped with that of a 1541 or
1541-II. If it's a 1541-II, it needs the same connection stripped (bit 0 of
Port A).
Quoted non-verbatim. More info at http://sta.c64.org/xp1541.html
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| Re: How does the C64/128 to 1541 parallel cable work ? [message #158615 is a reply to message #158490] |
Tue, 21 February 2006 16:21 |
Patryk 'Silver Dream
Messages: 737
Registered: July 2003
Karma: 0
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Senior Member |
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Mark Smith wrote:
> Hi there,
>
> I've seen various references to having a 1541 with a parallel interface
> .... how does this work ? Where does it plug in ? And what else needs
> to be done on the C64/128 and 1541 to make it work ? (ROM changes ?)
Once done it works with various software positions - no ROM changes
required but possible (e.g. SpeedDOS+) to extend the application range.
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| Re: How does the C64/128 to 1541 parallel cable work ? [message #158750 is a reply to message #158493] |
Wed, 22 February 2006 15:37 |
Jerry Kurtz
Messages: 244
Registered: June 2012
Karma: 0
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Senior Member |
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Stealth wrote:
> Thus spoke Mark Smith:
>> Hi there,
>> I've seen various references to having a 1541 with a parallel interface
>> ... how does this work ? Where does it plug in ? And what else needs
>> to be done on the C64/128 and 1541 to make it work ? (ROM changes ?)
>
> Put simply, the VIA#1 chip inside the 1541 gets some of its pins rerouted
> into a parallel port you either drill and bolt onto the backplate, or you
> have a parallel cable dangling out. It plugs into the userport of the C=
> machine. The C= itself doesn't get modified, although you will need
> dedicated software for it since it uses custom drive routines.
>
> If it's a 1541 drive, you won't need adjustments. If it's a 1541C, it needs
> both the connection stripped and the ROM swapped with that of a 1541 or
> 1541-II. If it's a 1541-II, it needs the same connection stripped (bit 0 of
> Port A).
>
> Quoted non-verbatim. More info at http://sta.c64.org/xp1541.html
It's also used by nibble copiers such as Maverick. Kind of neet too.
Also, if you want to archive your original C64 disks to the PC, you can
use the parallel cable with a PC and the tool named "mnib" to make .G64
backups of your disks which include the original copy protection too*.
See www.rittwage.com for more details on mnib and C64 copy protections.
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