 | | Re: Instructions for building DJGPP H8300 cross compiler
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Ed, This is GREAT to see. Will this work with the latest version of BrickOS? Steve ----- Original Message ----- From: "Ed Manlove" <emanlove@ieee.org> Date: Sun, 29 Sep 2002 14:06:53 GMT To: lugnet.robotics.rcx....lugnet.com Subject: Instructions (...) (22 years ago, 30-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: Use built-in Ir instead of IR-Tower?
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(...) The IR protocol is slightly different. While IRDA only sends short pulses the Lego Tower sends a signal for the whole time slot. It is very unlikely that one can get them work together. Jochen (22 years ago, 30-Sep-02, to lugnet.robotics.rcx.legos)
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| | Use built-in Ir instead of IR-Tower?
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Hi! i have a sub-notebook without any com-ports so i can't use my IR-Tower. But the built in IR is reachable over com5 (btw: i'm working with cygwin). so i changed dll to com5 (export...) but now i get the error(when dll'ing): Error 21: sending (...) (22 years ago, 29-Sep-02, to lugnet.robotics.rcx.legos)
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| | Instructions for building DJGPP H8300 cross compiler
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The following are instructions I am using for building the Hitachi H8300 cross compiler for the DJGPP environment. Please read through the entire message before proceeding. Download the following DJGPP/GNU packages from www.delorie.com or one of its (...) (22 years ago, 29-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: some more questions about lnp.
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The frequency of the RCX's IR does not change at all: " The RCX uses a 38kHz carrier, which is pretty typical for TV remotes. As for the sampling rate, the RCX runs at 2400 bps, which makes each bit approx 417us " (URL) think the only way you could (...) (22 years ago, 28-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: some more questions about lnp.
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duh... guess i was kinda wrong here.. IR is in reality a frequency defined from A to B. any messages sent within this spectre is said to be IR messages. so in theory sending an IR message closer to A than B from one RCX. and at the same time sending (...) (22 years ago, 28-Sep-02, to lugnet.robotics.rcx.legos)
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| | Watch Dog Timer on the H8
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Has anyone been able to make use of the Watch Dog Timer on the RCX? The H8 documentation seems to spell out the workings quite well. BrickOS (LegOS) has minimal support (a vector is declared for both NMI and overflow) and pbForth files list the WDT (...) (22 years ago, 27-Sep-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | some more questions about lnp.
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ok, im back again with even more questions. when i created my last program using lnp on an RCX i did a mistake by setting the same port as the one im listening on and the one im sending on. this made me think. what is the reason we use two different (...) (22 years ago, 27-Sep-02, to lugnet.robotics.rcx.legos)
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| | Update for DJGPP version
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Here is an update for my (slow) progress for creating a DJGPP compatible or port of brickOS. At this time I am solely focused on getting a cross compiler built and putting off other issues (such as tty comms, see (URL) I have tried three methods to (...) (22 years ago, 27-Sep-02, to lugnet.robotics.rcx.legos)
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| | some measurements in lnp, please comment!
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hi all, i have made some measurements with lnp in legOS 0.2.4 under ideal conditions (dark room with minimal load on PC and RCX) and found that sending a 10 byte message with lnp_addressing_write averages on about 0.06136 seconds (+/- 10 ms for time (...) (22 years ago, 25-Sep-02, to lugnet.robotics.rcx.legos)
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