Subject:
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Re: Spybotics demo followup questions
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Newsgroups:
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lugnet.lego.direct
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Date:
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Wed, 24 Jul 2002 11:18:06 GMT
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Viewed:
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851 times
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In lugnet.lego.direct, John Hansen writes:
> In lugnet.lego.direct, Jake McKee writes:
> > *** How much memory is in the brick? (compared to RCX) ***
> >
> > Two thirds the memory (4k compared to 6k for program download "with our
> > standard firmware"). And it's persistent: because it's stored in EEPROM, you
> > can remove the batteries and come back years later to find your program is
> > still there in good shape.
>
> According to an e-mail I received from Michael Anderson regarding the
> Spybotic brick there is
>
> "4k EEPROM for persistent program storage (256 bytes available for general use)"
>
> To me this sounded like only 256 bytes were available for downloaded
> programs (i.e., general use rather than firmware use). I hope I'm wrong.
You will have to excuse me in this info gathering process... robotics aren't
really my strong point, and I am simply relaying info from those who know
what they are talking about. I got a few bits of info back:
EEPROM: There is a total of 4k available. We reserve 256 bytes for general,
non-program use (READ-WRITE), such as persistent Spybot information (e.g.
motor setup or a self-controlled data log) and the rest (3.75k) is used for
downloading programs and data (READ-ONLY). There is nothing to be gained by
exchanging the circuit for another circuit with a higher capacity (as one
asks) because access is controlled from ROM.
IR: Yes, a Spybot can send RCX/Scout messages and an RCX 2.0 (possibly also
an RCX 1.x with 2.0 firmware - effective range may be shorter) can send
Spybot messages, just like it can send LEGO Bionicle Manas control messages.
The Spybots use the same 3-channel RC protocol as the LEGO Bionicle Manas
Hope this helps!
Jake
---
Jake McKee
Sr. Producer
LEGO Direct
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Message has 2 Replies:
 | | Re: Spybotics demo followup questions
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| (...) That is great, but can it program my VCR? :-) Does this mean that the RCX 2.0 has a greater IR range than the RCX 1.x due to hardware differences? Does the new IR RC Car use the same protocol as the Bionicle Manas as well? Jude (22 years ago, 24-Jul-02, to lugnet.lego.direct)
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Message is in Reply To:
| | Re: Spybotics demo followup questions
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| (...) According to an e-mail I received from Michael Anderson regarding the Spybotic brick there is "4k EEPROM for persistent program storage (256 bytes available for general use)" To me this sounded like only 256 bytes were available for downloaded (...) (22 years ago, 23-Jul-02, to lugnet.lego.direct)
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