 | | Program download time
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So I've got BricxCC compiling and downloading leJOS programs now. That's exciting (for me, at least). I'm using lejosrun.exe to download the .bin file to the brick. It takes a *long* time to download. Is there some way to download a program to leJOS (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java)
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| | Re: USB tower fast firmware download
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(...) Here's a picture showing BricxCC parsing pbForth (with syntax highlighting, of course): (URL) I'm still working on the console and script downloading. John Hansen (URL) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.pbforth, FTX)
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| | Re: leJOS & LDCC IRP
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(...) Yes, this is right, to be friendly to as many implementations of the Lego IR protocol as possible, receiving programs should just mask off bit 3. (...) While the code is there to discern packets with different addresses, I haven't yet added (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java, lugnet.trains)
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| | Re: leJOS & LDCC IRP
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(...) I'm not really there yet, just couldn't resist the Lion, Tin Man and Scarecrow metaphor. -Brian (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java, lugnet.trains)
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| | Re: leJOS & LDCC IRP
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(...) Receiving IR commands from a Lego Remote, IR Tower or possibly another RCX. They're not DCC signals, but LDCC IRP messages. Roughly the same data, different medium and different protocol. (...) LDCC IRP is still unstable, but it will support (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java, lugnet.trains)
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| | Re: Low level programming of the RCX
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(...) Speaking of Quite C, I am working on figuring out a good way to integrate Quite C into the BricxCC system. It is a bit different from the other languages BricxCC supports in that you compile to an SREC and download it as a new firmware rather (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Re: Low level programming of the RCX
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(...) [snip] (...) [snip] I'll second that. The BrickOS source code provides a good example of using the FRC as well as other low-level I/O. Between that source and the H8 manuals, you should be set. If you have specific questions, there are quite a (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Re: Low level programming of the RCX
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(...) Quite C is your best place to start with a language. C can give you direct access to the timer. The timer is considered an I/O device, but all I/O on the H8 is memory mapped. Having said that, if you know the address of the timer, you can (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Low level programming of the RCX
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Hello everybody, I try to program the RCX at low level. I want to be able to program using the Hitachi h8/3292 directly. For example, I want to use the free-running timer, define own interrupt handlers and so on. In fact, I *really* need to control (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Re: leJOS & LDCC IRP
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Hi, (...) I'm having a bit of difficulty to understand what you are trying to do, as I know Lejos but not the DCC/train side of things. In particular, on which side do you want to use Lejos, sending those remote commands from an RCX or from a PC? (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java, lugnet.trains)
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| | Re: leJOS & LDCC IRP
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(...) I re-used a function to send command packets to the RCX that was designed for use with the original firmware, so it toggles the 0x08 bit of any repeated opcode bytes. Mark pointed this out to me when I was developing Full Throttle, but then he (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java, lugnet.trains)
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| | leJOS & LDCC IRP
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Brian B. Alano wrote: I'm writing a leJOS package to support the LDCC IR Protocol. I've been testing it against Full Throttle. It works fine with the speed controls, but doesn't even seem to see packets for the function commands, stop, or power (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java, lugnet.trains)
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| | Re: some measurements in lnp, please comment!
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"Brian B. Alano" <alano@bloomington.in.us> wrote in message news:HL30D6.1rDC@lugnet.com... (...) practical (...) assume 50% (...) think anything (...) I'm not familiar with LNP, but I do have a good handle on infra-red messaging in general. There (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.legos)
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| | Re: some measurements in lnp, please comment!
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(...) Old thread, but oh, well. 4800 baud is 4800 bits per second or 600 bytes per second. If you assume 50% overhead, which is optimistic, that's 300 bytes per second. So I think anything over 200 bytes per second is pretty good. (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.legos)
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| | Re: Multiplexing 4 touch sensors on an RCX input port
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(...) I've made one. A wall follower. I set the sensor to raw mode and looked at three ranges. It tried to stay in the middle range, which for this 'bot meant lightly touching the wall. The wall follower had a bumper analogous to a highly curved (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Touch Sensor resistance versus button displacement
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Here is a chart showing the variation of contact resistance of several touch sensors while pressing button very progressively. (URL) There are huge differences between various sensor Lightly pressed touch sensors have contact resistance in the 2 to (...) (21 years ago, 11-Sep-03, to lugnet.robotics.rcx, FTX)
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| | Re: Multiplexing 4 touch sensors on an RCX input port
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"Steve Hassenplug" <Hassenplug@mail.com> wrote: [snip] (...) This has always annoyed me about the Lego touch sensors. Has anyone ever made or seen a contraption that uses the variable pressure sensitivity of the Lego touch sensors? Tim (21 years ago, 11-Sep-03, to lugnet.robotics.rcx)
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| | USB tower fast firmware download
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Thanks to Dick Swan's help I have managed to get BricxCC downloading firmware in fast mode with the USB tower. All it took was using long enough timeout values (I'm currently using the tower default timeout settings when downloading firmware), (...) (21 years ago, 11-Sep-03, to lugnet.robotics.rcx)
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| | Re: leJOS & BricxCC news
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(...) Yes, it would be nice, plus the two or three unused sensors... I'm happy enough with the LDCC firmware as a DCC encoder (pleased as punch, really). But it "would be nice" if it were implemented as a library or patch to an existing brick OS (...) (21 years ago, 11-Sep-03, to lugnet.robotics.rcx, lugnet.trains, lugnet.robotics.rcx.pbforth, lugnet.org.us.indylug)
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| | Re: Multiplexing 4 touch sensors on an RCX input port
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(...) I have tried this method too, and as you say in your text, it is plagued by the rubber contacts whose value goes down as more pressure is applied to the switch. I measured resistance of several touch sensors while applying a very progressive (...) (21 years ago, 11-Sep-03, to lugnet.robotics.rcx)
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