Woodie@DOCKMASTER.ARPA (Paul E. Woodie) (11/14/86)
I would like to interface an IBM-type keyboard to my Osborne Executive. The keyboard puts out a TTL "ascii-like" serial bit stream and my computer expects to see an 8-bit parallel input on the keyboard port. I imagine that someone has done this sort of thing before, maybe even some company that offers an IBMPC-keyboard-to-8-bit-parallel conversion adapter. Can anyone offer some information? I know that I can design and build an adapter, but -- just maybe -- someone has already done this. Thanks in advance, --Paul Woodie (Woodie at dockmaster)
GRUPP@mit-ai.ARPA (Paul R. Grupp) (11/15/86)
From: Paul E. Woodie <Woodie at DOCKMASTER.ARPA> I would like to interface an IBM-type keyboard to my Osborne Executive. The keyboard puts out a TTL "ascii-like" serial bit stream and my computer expects to see an 8-bit parallel input on the keyboard port. I imagine that someone has done this sort of thing before, maybe even some company that offers an IBMPC-keyboard-to-8-bit-parallel conversion adapter. Can anyone offer some information? I know that I can design and build an adapter, but -- just maybe -- someone has already done this. Thanks in advance, --Paul Woodie (Woodie at dockmaster) First off, the IBM keyboard sends serial data of key number NOT ascii. It sends the key number when the key is pressed, then sends key#+80h for key release. For info on an adapter see Micro/Systems Journal issue July/August 86, pg 34.