QIMi Mouse Interface - Is it compatible with Atari/Amiga Mice?

[martyn_hill]

Good morning all!

On both my Thor XVI and my Aurora QL I have QIMI compatible mouse ports and wanted to explore the use of a more modern/available mouse.

As I use PS/2 mice, I was hoping that the Atari ST/Commodore Amiga type mice interface might be usable via a cheap PS/2 to Atari/Amiga Mouse converter, then attached to the Thor/Aurora.

Is the QIMSI Mouse interface in anyway similar to that used in the ST or Amiga?

Thanks for any advice!

[Peter]

Good morning Martyn,

Is the QIMSI Mouse interface in anyway similar to that used in the ST or Amiga?

You probably mean QIMI without the "S". Detlef has designed a QIMI interface for PS/2 mice:
https://forum.tlienhard.com/phpBB3/viewtopic.php?t=1109
All the best
Peter

[dex]

“Once fitted, the other end of its ribbon cable attachment has a standard 9 pin socket and is compatible with contemporary Atari (e.g. the ST) mice.”
https://qxl.win/qimi_ql_mouse.htm

[Pr0f]

Hi Martyn,

I've used one of those PS/2 to Amiga mouse adapters with the QIMI compatible pins on Aurora bord - the wiring for Amiga is subtly different to the Atari, but apart from that it does work - it doesn't feel as responsive as a direct PS/2 interface.

Dave.

[martyn_hill]

Thanks guys!

I've got the PIC arriving shortly so will just need to find a way to program it and try it the converter.

Don't know how I missed the comment on the QXL.WIN site nor Detlef's PS/2 converter design - so thanks for the links!

And how that 'S' snuck-in my original post I can only assume was auto-correct on my phone

[Derek_Stewart]

Hi,

here is the connections of Amiga and Atari Mouse connections:

Code: Select all

Pin  Atari    Amiga
1    XB       YA (V-pulse)
2    XA       XA (H-pulse)
3    YA       YB (VQ-pulse)
4    YB       XB (HQ-pulse)
5    NC       MBUT
6    LBUT     LBUT
7    +5V      +5V
8    GND      GND
9    RBUT     RBUT

taken from Atari Forum:

https://www.atari-forum.com/viewtopic.php?t=20207


usually, there is a switch to change the mouse between Atari and Amiga mode.

The QIMI mouse, was derived from the Atari mouse system, I think.

see the file about QL Circuit conne tuons, that detaiks QIMI /Atari Mouse connne tions:

https://dilwyn.theqlforum.com/docs/hard ... QBoard.zip

or from the zip archive:

MouseCon.zip

(467 Bytes) Downloaded 1 time

[martyn_hill]

Thank you Derek!

I've since received the PIC uC and have programmed them successfully with my humble TL866-CS, so will be wiring them up to connect PS/2 mice via the Atari compatible mice ports on my Aurora and Thor (once I've replaced the 68B02 on my Thor's IO board...)

I'll share my findings thereafter.