 | | Re: Watch Dog Timer on the H8 - Working!
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Well, after browsing through the H8 reference another, oh 20 (?), times; and some messing around; it is now working. Basically, I had declared the Control Status Register as an 8 bit value. Since this is a special register (8 bit) that requires a 16 (...) (22 years ago, 28-Sep-02, to lugnet.robotics.rcx)
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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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| | Re: Automatic RCX Battery Recharging
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Yes, the object is to have the RCX robot monitor its own battery charge (something available to the RCX firmware, and lejos, etc..) and then when it is consistently low to drive up to some sort of home made charging station and get a boost. The (...) (22 years ago, 26-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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Hello, (...) The only problem with that is that you will have to guarantee a max. voltage of 9 or 10 V at the RCX. I don't think usual charging circuits have a voltage limit that makes sense ... Greetings Horst (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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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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| | Re: remote program activation
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Hello Jürgen (...) Thanks, I'll check that out. (...) For the same reason as lejos allows to link/upload up to 5 different programs and the rcx has a program select button! :-) No honestly, if I have a collection of short independent programs which (...) (22 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: remote program activation
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Hi Kaspar, (...) sending it the remote control sequence for button P1 it will start the currently selected program (not necessarily number 1). There was a more detailed discussion about this on the lejos mailing list a while ago. It's like this (...) (22 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | brickOS status update
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We are continuing to update our web site. The front page contains the latest news. (URL) have pushed another round of API docs to the web. New in this version are the brickOS Kernel Developer set and new example program pages (autogenerated from our (...) (22 years ago, 25-Sep-02, to lugnet.robotics.rcx.legos)
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| | remote program activation
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Does anyone of you know, whether it is possible (with a special byte sequence for example) to send a command to the running LeJOS JVM on the RCX which tells it to run a certain uploaded program? Or, if not, is it maybe possible to call a program x (...) (22 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: Automatic RCX Battery Recharging
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(...) Well I may sound boring, but with reflex loading they don't get hot ! Stef Mientki (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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In order to protect the RCX from any type of power problems, would it make sense to disconect the RCX from the batteries first and have it run from an alternate power supply? or would this make it too complicated? I know little about electronics, is (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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In lugnet.robotics.rcx, Brian Bagnall writes: <snip> Are you are talking about chagring batteries while they are in the RCX? If so, what about the heat. When the NiMh batteries are chargin in a wall-wart charger they get quite warm, wouldn't you be (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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(...) For you and me, that's simple... but even procurement of parts other than plain vanilla ones may be a nightmare for someone who isn't more or less in the electronics business (At least it is here in France) (...) Thanks for the pointer. (...) (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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(...) that's true, (if you think 1 8-pins IC + 1 Mosfet is not simple) (...) Good question, I never asked my self. But it seems no problem at all, I've very bad contacts, (you can even hear and or see them sometimes when the charge process is going (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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I agree that there are much faster charging methods, but the slow one has the advantage of simplicity (this was implied in the original question)... I wonder too how to design a connector with contacts that reliably carry 4 to 10 A currents and (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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(...) Yes Brian, and read my P.S. ;-) (...) This is not necessairly true. If you use the right charge method, load time less then 15 minutes, without degrading the batteries (even with positiv effect on the lifetime/capacity) is very well possible (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Automatic RCX Battery Recharging
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Some of us on the leJOS mailing list were discussing auto-battery recharging with the RCX. Here's some technical thoughts from Philipe Hurbain that might be useful to others. p.s. If anyone has anything to add to this please do. -*-*-*-*-*- I think (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Re: VPBRICK
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(...) This should work: SetEvent(My_Event, Message(), EVENT_TYPE_MESSAGE); Dave (22 years ago, 20-Sep-02, to lugnet.robotics.rcx.nqc)
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