Old drive

[Ralf]

My old C64 is standing alone. How to connect it to a CPC 664?

Ralf

[steve]

Perhaps you could write a program or two to allow the two machines to communicate via their cassette ports.

[Bryce]

You can remove the C64's circuit and keyboard and use it to store your CPC discs in it.

Only joking. Connecting the two via tape ports would be complicated because the C64 uses a serial digital link to the tape drive  whereas the CPC uses an analogue link. Porbably easier to connect the printer port (as output) to the Joystick port (as input).

Bryce.

[arnoldemu]

My old C64 is standing alone. How to connect it to a CPC 664?

Ralf

Many years ago I made an interface to connect a C64 to the CPC, but I think all my hardware and software is long gone
I used it to transfer some screens and sprites to the cpc, and it worked ok (my main problem was syncing the two computers for the transfer, but when it worked transfer was good).

My solution was a 8255 I/O chip, with some 74LS to do I/O port decoding for the CPC. This was on the Amstrad side. This connected to the C64's user port.

Using this I could transfer data...

It may be more possible, to use the CPC's printer port and the C64's user port.

In both cases, you need to use special software to do the transfer.

Other ideas would be to connect the CPC's expansion port to the C64's disc drive/serial port and bitbang it to load the data.
This *could* work.