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Re: A92: Keyboard for the TI-92?!
You don't need a special driver. External keyboard support is part of the
TI92s ROM. All I need to do is finish a ROM.
>Some time ago, I had the idea, of connecting a normal PC-keyboard
>with the TI-92. (I hate this awful small integrated keyboard, that can't
>
>be used for 10-finger-writing) Now when I read the things about EII and
>the TI-92 booting from network... I thought, that perhaps someone of
>you knows more than me about the TI-92's link-port.
>My idea was the following: The keyboard of the computer uses a
>synchronized serial link. By the direct control of the link port, it
>should
>be possible, to simulate the synchronization wire, and to read the
>keyboard
>by the data wire (luckily the TI-92 has to wires that can be read and
>written)
>if this is successful, it would be easy, to install a little new
>keyboard driver
>into the top-of-memory.
>However, I didn't tried it yet. One reason is, that I don't know,
>whether
>there are differences between the voltage of the Keyboard-port and the
>TI-92 port (I don't want to destroy my TI-92's link-port), another
>reason
>is, that I haven't got an own keyboard yet. (I hope, to get a
>ergo-keyboard,
>than I will be able to use the old keyboard for experiments)
>
>If anyone of you tried this yet, or has some information about how the
>keyboard
>works, please tell me. (e.g. I don't know, whether the keyboard or the
>PC controls
>the synchronization wire)
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