[A83] Re: Distance RAM clearer :-)

To: assembly-83@lists.ticalc.org
Subject: [A83] Re: Distance RAM clearer :-)
From: Hyperbyte <hyper@hysoft-automation.com>
Date: Tue, 12 Jun 2001 18:46:11 +0200 (CEST)
In-Reply-To: <000d01c0f357$dd1f6360$b28e74d5@qxd2j> from "Ronald Teune" at Jun 11, 2001 06:57:10 PM
Reply-To: assembly-83@lists.ticalc.org


> >We could do some more useful things with this routine :-)
> >
> >Let's summarize:
> >We have 2 input signals.
> >So we have 2^2 = 4 bit simple input from the linkport
> 
> red white
> 1     0
> 1     1
> 0     1
> 0     0
> 
> >Plus 2 1-signal inputs = 6 signals
> 
> How do you get that extra signals?

R - Red
W - White
0 - Zilch/Nothing

Tn - Timeindex n

  T1 T2
1 R  R
2 R  W
3 R  0
4 W  R
5 W  W
6 W  0

This is the way if the routine is triggered by R = high or W = high

<snip>

> >now to find some use for that :-)
> >Perhaps some base-6 Pin code :-)
> 
> That needs timing and such, so you need extra hardware, right?

Right :-)
But, best thing would be if it was kept ASAP (As Simple As Possible)

> >Or, some sensor-info, does someone know how to do short delays
> >between two signals, such as [signal1 - short delay - signal2], when
> >you press 1 button?
> >A simple way, that is. (I already thought of using pulse-counters and
> >pulse-generators, but it should be much simpler)
> 
> That's possible, I think, with a clock-pulse routine, where the calc reads
> signals only when there's a clock pulse. This also needs extra hardware, but
> it's less complicated I think, and the program can be endlessly epanded.
> Another possibility would be to use out(00),a to acknowledge input.

I don't think the problem is with the calc, A.F.A.I.K if the signal is sent any time in the delay, it will be picked up.

(any corrections?)

But, please elaborate you idea.

--Peter MArtijn




> 
> >--Peter Martijn Kuipers
> >
> >
> >>
> >>
> >> Hi
> >>
> >> Nothing like this existed, and it is worthless, mostly, but it's cool.
> >>
> >> begin:
> >> in a,(00)
> >> and 03h
> >> cp 01h
> >> jp z,C900    ;ram cleared
> >> cp 02h
> >> ret z
> >> jp begin
> >>
> >> or on-calc (83+)
> >>
> >> DB00
> >> E603
> >> FE01
> >> CA00C9
> >> FE02
> >> C8
> >> C3959D    ; jump to 9D95, the .org value
> >>
> >> Now make a button and connect it to the white (middle) pin and the earth,
> >> and optionally an escape button to the red (top) pin and the earth.
> >> I know, it's not as impressive as the PIXpander would be, or the IRlink
> or
> >> however it's called, but it's still cool.
> >>
> >> Bye,
> >>     Ronald
> >>
> >>
> >>
> >>
> >
> >
> >
> 
> 
>

References:

[A83] Re: Distance RAM clearer :-)

From: "Ronald Teune" <rtwolf@gmx.net>