Alt-BEAM Archive

Message #03466



To: "'Wouter Brok'" w.j.m.brok@stud.tue.nl,
From: Wilf Rigter Wilf.Rigter@powertech.bc.ca
Date: Fri, 21 May 1999 00:10:44 -0700
Subject: [alt-beam] Re: Tricore info question



content-type: text/plain

Hello Wouter and list

Sorry for the delay, I've just been very busy. To my surprise, the tricore
has 3 modes. Zero and one process and 3 processes at very high frequency.
The PNC restores normal one process mode. Here's an example of another "odd"
core: a Pentacore that places the PNC inside the 4Nv loop. On power up, the
PNC Nv (not Nu =) resets the other Nvs. Since it's inside the loop, it
resets them one every stepping cycle, automatically reinitializing the core
in case of saturation. With the adjustable 1M pot you can vary the speed of
the walker from full speed to 10 seconds for one stepping cycle.When set for
full speed, the walker should start walking as soon as the power is applied.
I haven't time to build this at the moment but it should work as advertised.
One neat idea is to add a IR receiver that senses IR pulses and connect the
active low output of the IR receiver to the bias point (x) of the PNC. Now
when you have a Pentacore bot adjusted to slow speed, then you can control
it with a TV remote control when pressing any key generates an IR pulse that
causes it to take one step cycle at a time. That is what I meant by core
synchronization. If you want some interesting herd synchronizing behaviour,
build several Pentacore bots and connect a visible LED and a IR LED (IR
beacon) to the output of the first NV after the PNC. Then the PNC of the
"fastest" bot will time out and at the start of that bot's step cycle it
will radiate an IR pulse which will trigger the next nearest bot and that
one to the next cascading away from the center until all the bots within the
receiving radius take one step cycle with a wave of blinking visible and IR
LEDs, one step after another.

sound like fun?

enjoy

Wilf Rigter mailto:wilf.rigter@powertech.bc.ca

<>


> -----Original Message-----
> From: Wouter Brok [SMTP:w.j.m.brok@stud.tue.nl]
> Sent: Wednesday, May 19, 1999 11:12 PM
> To: Wilf.Rigter@powertech.bc.ca
> Cc: beam@corp.sgi.com
> Subject: Re: Tricore info question
>
> >Yes needs a PNC
>
> Is that so in a 3 Nv-ring? I thought the first ring-like structure of
> Nv-neurons able to have more than one (read two) processes is a 4 Nv-ring
> (microcore), because processes need to be seperated by at least one
> Nv-neuron, if you understand what I mean. This would mean that a tricore
> is
> able to contain either zero processes or just one .... or am I missing
> something with the in-output delay of the inverters (Dennison)?
>
> You are right Wilf, about the 'special funtion' of the odd neuron ...
> great
> idea ... a lot of new stuff to make up and experiment with !!!
>
> Regards,
>
> Wouter Brok
>
>
>


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