 | | Re: RCX <-> PC communication
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(...) Kaspar, There is a bug with serial towers with RCXPort in lejos 2.0. This causes the problem you are seeing. There is a fixed version in (URL) fixes RCXPort, but I haven't put the fix in the LNP versions yet. I only have a USB Tower, and (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication, more details
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Hi Kaspar, Thanx for the information. In the Lejos-discussion mailing list (Sept 13), Lawrie Griffiths wrote: "A timeout of 100 milliseconds or more should ensure that it reads all the bytes in one message." Looks like it confirms what you (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication, more details
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(...) Great, I just had too much time at hand, so I could already test the hypothesis above. Great, to be able to post a followup to my own message within half an hour... Ok, here it comes: The PC __IS__ swamping the RCX when using the LNP protocol. (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | RCX <-> PC communication, more details
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Thanks for the three of you (Francois, Roger and Lawrence) who have answered to my questions. I was asked to state some more details, which I'll do here: I am working under linux (SuSE 7.3) and since the linux version of java does not yet support (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication
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(...) Lawrie Griffiths asked me to forward the following to you: RCXPort should be about twice as fast as RCXF7Port. Do you have a serial or USB tower? I am concerned that you don't get complete reliabilty with RCXPort - I do with a USB Tower. (24 years ago, 14-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication
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(...) I have not done any experimenting with Data Streams yet since I can get by with bytes. I have tried both the RCXPort and the RCXF7Port. The big advantage of the RCXPort using the LLC protocol is that if the RCX gets out of range or behind an (...) (24 years ago, 13-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication
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Hi Kaspar, Did you compile the PC end program using javac and did you add pcrcxcomm.jar from the lejos lib directory to your CLASSPATH? Could you give some more details about your problem (what platform are you working on? complete code...)? Wap (...) (24 years ago, 12-Sep-02, to lugnet.robotics.rcx.java)
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| | RCX <-> PC communication
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Ok, here's a little something to think about: I have been testing the three communication protocol stacks of LeJOS 2.0 (josx.rcxcomm package; LLC, LNP and F7 protocols). Simple application: Array (size 20) of ints on both PC and RCX. Got both a (...) (24 years ago, 10-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: Help with Clock
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(...) That's currently done in the leJOS loader (see rcx_impl/main.c), and only if no program is running. So you can't turn it off, but you don't need to turn it off either once your program is running ... Jürgen (24 years ago, 5-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: Help with Clock
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What about turning the timer off that turns the RCX power off. What would be the class and method or is it a ROM routine. Thanks, Scott (24 years ago, 4-Sep-02, to lugnet.robotics.rcx.java)
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