Keyboard PS/2 to Parallel converter
Roy J. Tellason
rtellason at verizon.net
Mon Jan 7 17:51:24 CST 2008
On Monday 07 January 2008 11:54, Fred Cisin wrote:
> It would seem that the cheapest way to do it is a discardable PC.
> Input character
> print it
There was some project article in Byte way back when, by Steve Ciarcia,
which provided a peecee-type keyboard input (AT rather than PS/2 but that
shouldn't make that much difference). The circuit to deal with this was very
simple and elegant, though I can't remember any more just how it was done.
He didn't use a UART or similar, though, just a couple of MSI chips. And I
remember thinking then how it wouldn't be all that hard to stuff an eprom
between the output of that circuit (which gave you keycodes rather than
characters) and have it spit out ASCII.
Perhaps one of these days I'll run across the article again.
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