 | | Re: Makefile question
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(...) I have added random number generators to either of the c library, or to the float library (v0.2.3, on Linux). What I did was cd to the lib/c (say) directory, and deposit my source files there. I then edited the Makefile in this directory, and (...) (24 years ago, 28-Apr-00, to lugnet.robotics.rcx.legos)
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| | Re: Has anyone used lnpd succesfully?
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Yes. I have used it successfully, though not always... In my case it seems to be a problem with the uart 16550A. It does not switch to low lattency mode correctly making the tower blind to the RCX. I circumvented the problem setting the UART type as (...) (24 years ago, 28-Apr-00, to lugnet.robotics.rcx.legos)
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| | Re: Duplex Comms with RCX
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(...) I have given this some thought in the past, although I haven't had the (significant!) time that it would take to try this out. I think the best hope for any kind of two-way communication protocol between the PC and one or more RCXes is to use (...) (24 years ago, 27-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Has anyone used lnpd succesfully?
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(...) Are there known conditions where lnpd works and doesn't work? Are there versions of LegOS which support it better? Mostly I wish I had at least one report of success that would suggest that there is hope at the end of my tunnel. I cannot do my (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx.legos)
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| | Re: Alternative Power Supplies
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(...) I'm actually working on a small device that will connect directly to the battery posts in the RCX/Scout. It uses a relay and a few diodes to protect the RCX from reverse polarity and overload. The relay will allow you to switch from internal (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx)
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| | Re: Alternative Power Supplies
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Hello Kurt, I want show you three possiblities for alternative power supplies. 1. Take 2 sets of 6 NiMH accus or 2 * 6 NiCd accus to have one set inside the rcx an one set in the charger. This would be a very simple way to solve your problem. 2. The (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx)
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| | Re: lnptest gives collision errors. Sigh...
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(...) I guess there is no hope. I found a long thread here with someone else who had a collision problem . I applied the patch to transmitter.c mentioned in that thread with the same result. I downloaded lnpd.static from arthurdent. Same result. I (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx.legos)
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| | Re: Duplex Comms with RCX
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(...) I actually prefer the "junk" solution to a hardware hack. (24 years ago, 27-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Re: Duplex Comms with RCX
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(...) It seems to me that, given the current hardware, the choices are: send junk or let the tower go dead. My thinking is that if you send junk and trample something, so be it; the tower would have gone dead anyways, forcing you to lose whatever it (...) (24 years ago, 27-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Re: Duplex Comms with RCX
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(...) Fair enough. It's too bad it doesn't have an always-on mode. (...) Definitely agreed. I'll be patient. (24 years ago, 27-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Re: Duplex Comms with RCX
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(...) I just haven't found a non-intrusive method for keeping the tower alive. I hate transmitting garbage every few seconds and possibly trampling incoming data. I'm also not sure this is a very good long-term solution. Really a general purpose (...) (24 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Re: Duplex Comms with RCX
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(...) Not that there's any pressure or anything. :) (24 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Alternative Power Supplies
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I have an RIS 1.5 set, which doesn't have the power connector. I seem to run through a set of batteries in 1-2 weeks, which will eventually get very expensive. What ways are there, other than using rechargable batteries, to supply power to the RCX (...) (24 years ago, 26-Apr-00, to lugnet.robotics.rcx)
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| | Re: Duplex Comms with RCX
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(...) Dave had mentioned making a listen mode w/ keep-alive in a future version of nqc. But I don't think he's gotten around to that yet. (24 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Re: Duplex Comms with RCX
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(...) Yes. Note that it is only half-duplex. You probably expected that. (...) The biggest issue you might run into is the fact that the IR tower used by the PC times out if it doesn't transmit anything for a few seconds. Unless you have constant (...) (24 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Re: Duplex Comms with RCX
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"James Hammond" <jsh@it-innovation.soton.ac.uk> wrote in message news:3906A2E6.6A40E0...n.ac.uk... (...) Yes it can. There is a standard RCX opcode for sending single byte messages, and you can always use multiple of these commands for more complex (...) (24 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | Re: Duplex Comms with RCX
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It appears Roblab 2.0 would also be an alternative for your project. Robolab has two different direct modes to control the RCX, one of which is using a remote connection like the Internet. Depending on your direct control requirements, you may want (...) (24 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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| | RCX2 API
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I've put together a NQC API file that allows you to use some of the RCX2 features. I don't no whether anyone else has already done this but here is mine. This is unofficial so is unsupported. All question should go to the group, not Dave or myself. (...) (24 years ago, 26-Apr-00, to lugnet.robotics.rcx.nqc)
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| | RCX2 API
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I've put together a NQC API file that allows you to use some of the RCX2 features. I don't no whether anyone else has already done this but here is mine. This is unofficial so is unsupported. All question should go to the group, not Dave or myself. (...) (24 years ago, 26-Apr-00, to lugnet.robotics.rcx.nqc)
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| | Duplex Comms with RCX
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Hi I am sure this has been done many times before, but I am having trouble confirming information. I wish to purchase the RIS 1.5. But before I do I need to be sure that I can communicate with a running program on the RCX and that the RCX can (...) (24 years ago, 26-Apr-00, to lugnet.robotics, lugnet.robotics.tele, lugnet.robotics.rcx.nqc)
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