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(...) Transmit whenever you feel like it and hope you didn't obliterate data coming from the other direction. Rudimentary, but still quite effective given the typical use pattern with is host driven command/response. With RCX to RCX communication (...) (26 years ago, 30-Apr-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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(...) Dave, did you catch the crosspost from lugnet.robotics.rcx.legos? I think there were details discussed there that may or may not have amounted to a fairly specific proposal for a protocol for LegOS. Anybody care to summarize whatever was (...) (26 years ago, 1-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | RE: Lego Network Protocol questions
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With all of the talk about networking and IP embedding and such, and since I'm working on a proprietary '485 master/slave protocol for a client, I had to dust off a GREAT university text on networks. It devotes an entire chapter to ALOHA and slotted (...) (26 years ago, 1-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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(...) Oops, I must've just caught the tail end of the conversation. I assumed the standard [lame] lego protocol was being discussed, not a custom protocol. Sorry. Dave (26 years ago, 2-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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In lugnet.robotics.rcx.legos, Ralph Hempel writes: [ ... ] (...) This is actually the book from which the thoughts I posted about arose. It is, indeed, a great book ;-) (26 years ago, 5-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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(...) Just to state my interests: I'm mainly interested in the protocol, eg what level of service it would provide etc. In particular, I'm interested in layering a higher level gauranteed delivery protocol atop whatever simple one is provided. (...) (...) (26 years ago, 5-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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(...) I believe transmission and reception are independent, i.e. the emitter circuit is decoupled from the receiver circuit. The hardware on the H8 is full duplex. Once you finish sending a byte, I think you get two interrupts: one saying a byte has (...) (26 years ago, 5-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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In lugnet.robotics.rcx.legos, Kekoa Proudfoot writes: [ ... ] (...) To this end, i've started work on a Discrete Event Simulator. The idea is to use this to see the effects of some of the things you mention above. Note that this is not an (...) (26 years ago, 21-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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