Re: LZ: RS-232 & RS-422 Standards
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Re: LZ: RS-232 & RS-422 Standards
On Wed, 2 Oct 1996, A.K.A. TheWiz wrote:
> > Oh yeah. The mac is missing some pins that the $4 link uses. I already
> > tried. I got the data light to blink when sending data from ZTerm, and an
> > occasional byte from the 85 using a port of one of the dos link proggies
> > but nothing you'd call spectacular success.
>
> Yes indeedy. The CTS & RTS (or whatever) pins, in fact. But I figure
> it ought to be at least POSSIBLE to connect the one to the other. What I
> want to know is: how?
>
> Anyone?
>
I was thinking about trying to use the actual in/ out pins... or maybe the
external floppy port. Oooh, better yet, SCSI!!! :) As if that would
work. You might be able to assert cts and rts by hooking both ports
together, and opening "/pAin" and "/pAOut" and toggling the "openness" of
"/pBin" and "/pBout" Or maybe a hardware "bit dropper" that only
transmits one of eight bits, but expands a bit into a byte...
<pre>
--
Chris Kuethe <ckuethe@gpu.srv.ualberta.ca> LPGV Electronics and Controls
RSA in 3 lines of PERL:
#!/bin/perl -sp0777i<X+d*lMLa^*lN%0]dsXx++lMlN/dsM0<j]dsj
$/=unpack('H*',$_);$_=`echo 16dio\U$k"SK$/SM$n\EsN0p[lN*1
lK[d2%Sa2/d0$^Ixp"|dc`;s/\W//g;$_=pack('H*',/((..)*)$/)
</pre>
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