Subj : Re: XM1541 cable issues with HDD64 and SC
To   : Pekka Takala
From : Harry Potter
Date : Mon Aug 07 2017 05:12:19

On Sunday, August 6, 2017 at 11:54:46 PM UTC-4, Pekka Takala wrote:
> The XM1541 cable is just a serial cable, but it attaches into parallel
> port of the machine. There is four schottky diodes inside, and xm cable
> is meant to support multitask. It works fine with SC, but not with
> 64HDD. It will work fine under cbm4linux or opencbm.
>
I'm not totally sure what cable I have, but I got it from the maker of 64hdd.

> Also 64hdd does not support XM cable. It must be XE cable, that is same
> as XM but two wires exchanged.
>

> 64HDD uses number 8 normally. If there is a cbm device with number 8 on
> line, they will mix each other and wont of course work. So change the
> 64hdd to device 9 and so on if you want to use standard 1541 on line.
>
I'm using device 9 for the connection.

> If you want to use SC with the 1541, DISCONNECT the c64 from line. If
> connected it will not work.

Is turning off the C64C good enough?

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