Jookie wrote:You don't need to disable the drive when you don't have it connected, this is disabling on electrical level and on low level, so you can have the floppy connected to the cable, but it behaves like it's not there.
Interesting. Door open to some nice setup.
And the auto detection of internal / external (A / B) would be difficult, if not impossible, or unreliable. I'd rather leave that to user.
I am not talking about auto detection. By default the floppy drive connected internally is 0/A. Not sure in Atari but in order to connect as drive 1/B in PC is usually done by using cable with selection pin switched on second connector.
As both selection line comes to the connector I suspect CosmosEx can select one or the other directly.
By default external drives provided for Atari where always 1/B
on my site http://info-coach.fr/atari/hardware/int ... _INTERFACE
you can find the DIN14 pinout
Pin 5 and 6 are drive 0 drive 1 selection. This is quite interesting because this means that it is possible to use CosmosEx externally using the DIN14 connector and still use it as drive 0 or 1 if properly cabled.
To bad there is no way to easily turn off the internal floppy as this would have allowed to use internal or CosmosEx as drive 0
Need to check the cable used in Atari SF314 external floppy drive