 | | RE: RCX to RCX NQC
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There's another little problem that you may need to program around. There's a bug in the ROM firmware that could end up requiring a 30-millisecond delay between when a RCX sends out a message and when you should start sending the first character of (...) (19 years ago, 15-Sep-05, to lugnet.robotics.rcx)
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| | RE: RCX to RCX NQC
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The message "toggle" bit was a good concept that has very limited value in practical use. I guess the intent was to prevent unexpected behavior when a PC program attempts retransmission after a message failure. Suppose the failure condition was that (...) (19 years ago, 15-Sep-05, to lugnet.robotics.rcx)
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| | Re: RCX to RCX NQC
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(...) I'm pretty sure, both the remote, and the send message commands only have one op-code, and are done differently from the rest. Steve (19 years ago, 14-Sep-05, to lugnet.robotics.rcx)
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| | Re: RCX to RCX NQC
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(...) Ahh, now I understand why it is called a "toggle bit" - I somehow misinterpreted this to mean a new command had the toggle bit set (to 1), and if the sending unit doesn't recieve a reply it should re-transmit the command with the toggle bit (...) (19 years ago, 14-Sep-05, to lugnet.robotics.rcx)
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| | Re: 1.0 brick not responding
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(...) Powerbook 5300 with MacNQC: After about 4 seconds "No response or bad response from RCX. Make sure the RCX's receiver is facing the IR device and the RCX is turned on." Palm 130 with PBrick Demo: play sound 1, play sound 2, and play sound 3 (...) (19 years ago, 14-Sep-05, to lugnet.robotics.rcx)
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| | Re: 1.0 brick not responding
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(...) Generally, that means the IR tower is working. It's possible the tower has become broken, while it sat in a closet, but that's not very likely. So, knowing things worked before, you may be forgetting something. Make sure the memory is cleared. (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx)
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| | Re: 1.0 brick not responding
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(...) Yes, it flashes. (...) Yes it did work, but it's been in storage for a couple of years. (...) At this point, just download firmware. Once I get the communication issues resolved, I'll do programming. (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx)
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| | Re: direct manipulation of bits in RCX registers using NQC
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(...) I agree with Steve that the code samples you posted are probably BrickOS. Now to acheive what you want, it might be a waste of power, but you could always blank off the light itself with a peice of black card or thin black packing plastic. If (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: direct manipulation of bits in RCX registers using NQC
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(...) Matt, There are a few ways you can program your RCX. The main choice is if you use the standard firmware, or not. The firmware is pretty much like Windows Operating System. If you use NQC & the standard firmware, you don't need to worry about (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: direct manipulation of bits in RCX registers using NQC
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(...) inside the RCX *directly*, not running programs layered on top of the standard firmware. And if you want to use NQC, you have to work within the limits of the standard firmware (OK, ignoring Dick Swan's firmware, which I've still not been able (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx.nqc)
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