feipoa wrote on 2025-10-20, 23:04:

Did the original firmware not workout well?

Why not?)))
Open alternative is the best way for something new.

Babasha wrote on 2025-10-21, 03:16:

feipoa wrote on 2025-10-20, 23:04:

Did the original firmware not workout well?

Why not?)))
Open alternative is the best way for something new.

Uploaded the beta version.
If anyone decides to flash the firmware, please let me know whether everything works.

Hey everyone.

I've got some extra PS/2 Mouser ISA card adapters for sale to Vogons members!

I have 5 cards available to members who are interested and do not want to tackle this project themselves.

Thanks for Rio444 for the original design and firmware, and to maxtherabbit for the updated firmware and modifications to work with current available parts!

I have tested all of the boards with ONE configuration. So I can't promise that there won't be issues with other configurations, but if there is it's likely an easy fix if you are handy with a soldering iron. I tested with:
COM1
Mouse Wheel Enabled
IRQ default

I did encounter an issue with the boards on one of my mice which would cause the mouser driver to load, but not work correctly or rare occasions. Reloading the mouse driver would then work fine (in this case I tested with CTMOUSE). I haven't seen the issue with a different mouse. I'm not sure what the cause of this particular issue was for sure.

I am selling these for what it cost me to get all the parts and does not include any labor at all. The boards cost me $28 apiece. I am willing to sell them for $30 apiece + shipping to anyone who is interested. Obviously there was a lot of labor involved in getting everything figured out, soldered, and tested; so if you want to include a little extra, I won't complain 😀. Boards are ENIG with gold fingers, however, no bevel.

DM me if you are interested. I have limited time to work on this so please be patient with my replies. And also, due to my limited time, I do not have time to deal with overseas/customs/duties so I will be shipping within the US only 🙁.

Guld wrote on 2025-10-31, 13:41:

Great job!

I responded to Rok and Eduardo.
If someone emailed me and didn't receive a response, it means I didn't receive your message. Please send it again, or email me at riv.rostov (at) gmail.com.

There are nice news about alternative open firmware - bug hunting is successful, works with Windows drivers and most of DOS drivers and utilities 😀
Great job @Yftul

https://github.com/Yftul/ps-2-mouse-to-isa-replica

Thanks Guld, that's great news for those of us who were holding out for Rio444's logistics situation to improve.

Is anyone interested in checking the device with open firmware(link updated)?

https://www.ebay.com/itm/317558490917

Yftul wrote on 2025-10-31, 12:21:

Uploaded the beta version.
If anyone decides to flash the firmware, please let me know whether everything works.

https://github.com/Yftul/ps-2-mouse-to-isa-re … leases/tag/v1.1

Fixed issues with using the device on a buggy 386 SX board.