DOS Mouse Problem

[DaveSmith1985]

Hi dear Deadman.

In Win9x the Adaptor is working fine, but in dos the Mouse cursor springs in the
lower left corner, and nothin happens. Testet with different Mousedrivers, and the issue
is also under win3.11 :-(

[ChrisDeadman]

Hey Dave, thanks for the bug report!
I've heard about this already from another user, but could not reproduce it myself on my machines :/

Do you by any chance have the option to connect a 3.3V serial adapter to the 3-pin debug connector?
If you connect there using 115200 baud and send any keypress (e.g. ENTER), it prints the last received and transmitted packets.
That would enable me to trace the issue.

[ChrisDeadman]

I've found a potential issue when going through the code, could you try this firmware and see if that fixes it?
firmware.bin.zip (that one didn't fix anything) firmware.bin.zip

[ChrisDeadman]

@Ulfenknulfen and me have looked into that issue further, and with regards to the stuff that is transferred over PS/2 on his machine, I cannot find an issue.
I've modified the firmware.bin.zip in my previous comment to the one I think might fix incompatibility issues with some boards, but it did not fix the mouse issues for @Ulfenknulfen unfortunately 🫤
@DaveSmith1985 Could you tell me what motherboard you are using?