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USB/PS2 Keyboard not working with PS2
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USB/PS2 Keyboard not working with PS2

by v8dave on Tue Aug 03, 2021 11:39 pm

I purchased one of the Adafruit mini USB keyboards (PRODUCT ID: 857) with a PS2 adapter from Mouser but it doesn't work in PS2 mode with an older DOS based PCA-6781 industrial single board computer. A standard PS2 keyboard works with the SBC so I know the port works.

The keyboard works in PS2 mode with a more modern PC motherboard so the PS2 adapter and keyboard are working.

Does this adapter and keyboard work with older PS2 ports? Is there a way to force it into PS2 mode? Why is it not working?

v8dave
 
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Joined: Mon May 26, 2014 12:00 am

Please be positive and constructive with your questions and comments.