Re: [CAD_CAM_EDM_DRO] I/O for the future

Hi Chris,

Some interesting ideas you have there! However, separate address and
data lines on AT's (ISA)? SD0-SD15 and DA0-SA19 ARE separate! The 8 bit
processors (8085?) had multiplexed pins, I seem to recall. Even the old
'286 had separate address and data lines.

Alan KM6VV

Chris Stratton wrote:

>
> A friend and I were talking about the demise of the ISA bus this
> morning. (This is in my opinion really unfortunate, as the ISA bus is
> a good one for simple hardware - about the only thing that could be
> better would be seperate address and data lines). I pointed out to him
> that by trying to do real time motion control on a desktop PC we put
> ourselves in an interesting position:
> <big snip>
>
> Chris
>
> PS - I wonder if one can optoisolate USB? Actually, running it over
> TOSLINK fiber would be cool!
>
>