 | | Re: Spurious bad readings from sensors
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(...) Because of the way BrickOS uses interrupts to handle active sensors, it's possible for sensors to be deprived of power for 300us or more, though typically the interval is only 30us or so. This is due to long interrupt latencies in BrickOS that (...) (21 years ago, 25-Feb-04, to lugnet.robotics.rcx.legos)
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| | Spurious bad readings from sensors
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Hi, I instrumented Steve Hassenplug's legway code so that after it falls over it can dump sensor data and motor control valiables out to a PC. One of the things I noticed in this process is that aperiodically, the sensor inputs give a sensor reading (...) (21 years ago, 25-Feb-04, to lugnet.robotics.rcx.legos)
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| | cannot install brickOS
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Hi, When I'm trying to install the Hitachi H8 cross compiler (on win2000), I have some errors during the installation like : sys/types.h: No such file or directory But at the end it says : GCC install end Done. :---...--- End Wed Feb 25 14:05:50 (...) (21 years ago, 25-Feb-04, to lugnet.robotics.rcx.legos)
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| | Use of lnp_addressing_write() in an RCX program.
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Hello all. I wrote a small program using lnp_addressing_write() to remotely change the host address of one RCX from another. It doesn't work. I get an occasional flash of IR icon on receiving unit - that's it. Please take a look: int main(int argc, (...) (21 years ago, 24-Feb-04, to lugnet.robotics.rcx.legos)
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| | How to send button cmd or run pgm remotely from one RCX to another ?
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I am trying to use lnp_addressing_write() or lnp_assured_write() to send commands (e.g. CMDdelete, CMDsethost) from one RCX to another. This seems to be the way it is handled in loader.c of the DLL utility. I am not having any success. Is there an (...) (21 years ago, 19-Feb-04, to lugnet.robotics.rcx.legos)
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| | Re: How to get RCX to display/change its LNP host address ?
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In program.c, you will find: cputw(lnp_hostaddr); This is used by the program manager to display the current host address (use the View button on the RCX)... while displaying the host address, if you hit the Program button on the RCX, it will (...) (21 years ago, 19-Feb-04, to lugnet.robotics.rcx.legos)
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| | How to get RCX to display/change its LNP host address ?
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1) I am trying to write a small program which will change the host address of the RCX to something else. I am making a call to lnp_set_hostaddr(). But I would like to verify the change, so: 2) I am also trying to get the RCX to display its current (...) (21 years ago, 18-Feb-04, to lugnet.robotics.rcx.legos)
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| | Solved my problem with lnpd
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Hi, I've solved my problem that RCX didn't receive correctly from tower. I've posted the patch at the brickos project site at sourceforge. (URL) it doesn't work try: (URL) and click on the link " View and post Patches at brickOS project site" (...) (21 years ago, 18-Feb-04, to lugnet.robotics.rcx.legos)
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| | Release candidate brickos-0.2.6.10.6 AvaIl. for testing
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Thanks go to Michael Obenland for pointing out a problem with compiling under the new gcc versions. This caused me to recognize that I failed to include 5 of the latest file versions in 10.5. If you've started to work with 0.2.10.5, please download (...) (21 years ago, 17-Feb-04, to lugnet.robotics.rcx.legos)
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| | Sending messages using LNP
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Does anyone know where I can find some sample code or demos explaining how to send simple messages back and forth between RCXs using LNP ? (21 years ago, 13-Feb-04, to lugnet.robotics.rcx.legos)
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| | Release candidate brickos-0.2.6.10.5 available for testing
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The brickOS team is pleased to announce our next test release. (Can you believe we are days shy of a year since our last?) We will likely do one more before our formal brickos-1.0.0 release. Our plan is to release 0.2.6.11 followed by a testing (...) (21 years ago, 16-Feb-04, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS: No rule to make target
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(...) Try to substitute the line PROGRAMS=helloworld.lx rover.lx linetrack.lx robots.lx c++.lx sound.lx by this one PROGRAMS= and then "make helloworld.lx" I had also to modify the line in Makefile.common (included by the demo Makefile) which sets (...) (21 years ago, 12-Feb-04, to lugnet.robotics.rcx.legos)
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| | BrickOS: No rule to make target
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Hi, I'm trying to build the BrickOS demo programs on windows98. I have gcc v3.2 and make v3.8 installed from cygwin. make clean and make realclean work but when I try to just do a make, the .depend files get built in both the demo directory and in (...) (21 years ago, 12-Feb-04, to lugnet.robotics.rcx.legos)
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| | YAL, Yet Another LegWay
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YAL: Yet Another LegWay ===...=== (2 URLs) Allen Foster> and (URL) Harold Jarvie> posts showed me that it was possible to build a LEGO-only self-balancing robot, inspired by the famous (URL) Steve Hassenplug's LegWay>. Here are some details of my (...) (21 years ago, 5-Feb-04, to lugnet.robotics, lugnet.robotics.rcx.legos, lugnet.announce, FTX) !!
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| | Re: Cannot receive with LNP.
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(...) Ok cool !! Can you make a report after make this work ? nanobapt (21 years ago, 3-Feb-04, to lugnet.robotics.rcx.legos)
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| | Re: How does?
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(...) lnp_integrity_byte is called from the function rx_handler in lnp-logical.c Bye! Gerard. (21 years ago, 3-Feb-04, to lugnet.robotics.rcx.legos)
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| | How does?
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Hi, How does the lnp_integrity_byte function ever get invoked? I see it defined in kernel/lnp.c, and I see it referenced in boot/brickOS.lvs. Is there some magic to the number 0x9419 (0x8000+0x1414)? Is the ROM receiving a byte and then calling this (...) (21 years ago, 3-Feb-04, to lugnet.robotics.rcx.legos)
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| | Re: Cannot receive with LNP.
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(...) Hi, For the moment I've achieved that the PC can receive from the rcx. I've done it commenting some error check from lnpd and it seems to work properly both the addressing and the integrity layer. Now I'm trying to do the other way (from pc to (...) (21 years ago, 3-Feb-04, to lugnet.robotics.rcx.legos)
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| | Re: Cannot receive with LNP.
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(...) I never seen the adressing message work .... Try to search if you have the good adress setup in the lnp_adressing_write function. nanobapt (21 years ago, 30-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: BricxCC release 3.3.7.7
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(...) Upon further review, it would appear that (at least on my machine and one other that I have heard about) the new release of BricxCC (3.3.7.7) does, in fact, correctly download the brickOS firmware. My previous tests were using an old copy of (...) (21 years ago, 30-Jan-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Cannot receive with LNP.
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Hi list! my name is Gerard and I'm working with BrickOS over the lego mindstorms. My problem with LNP is that it seems not to be receiving anything. After having installed the handlers on both sides (pc and rcx) no one seems to receive anything. On (...) (21 years ago, 30-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: Further Adventures with Assembler
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(...) Got it. I just converted my whole program from C++ to C, and then it stopped whining. (21 years ago, 28-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: Further Adventures with Assembler
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(...) Yeah... that was me being stupid. The types are all correct in the program. I tried compiling without the .b and .w's, just to be sure and it's the same error. The arrays that cause the problem are of type const char. There's three that have (...) (21 years ago, 27-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: Further Adventures with Assembler
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(...) The line above should produce an error because you are specifying a byte move into a word register. The fact that it doesn't always cause an error makes me think there's something flakey (in the assembler) in the way instruction operand sizes (...) (21 years ago, 27-Jan-04, to lugnet.robotics.rcx.legos)
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| | Further Adventures with Assembler
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Just wanted to thank everyone again for the help on assembler. I've been very successful and managed to greatly increase the speed of a critical portion of my program. However, I'm still having a very bizarre issue: In the middle of an assember (...) (21 years ago, 27-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: problem wirh downloading demo program
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The program "dll" attempts to delete the program in the slot on the RCX that the new program will be placed. It does this every time, because, it doesn't know if a program is there or not (better safe than sorry). The fact that you are getting this (...) (21 years ago, 26-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: problem wirh downloading demo program
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(...) This error indicate that the program don't download succefully the program ... turn on RCX ;-) or see if you can acess to the right COM name or sotmething like that nanobapt (21 years ago, 26-Jan-04, to lugnet.robotics.rcx.legos)
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| | problem wirh downloading demo program
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Hi, I tried to download the hello-world demo-program after downloading legos for the first time. It failed with the message "delete program failed". What program should be deleted, there is none! Anne (21 years ago, 26-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: BricxCC release 3.3.7.7
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(...) Unfortunately, BricxCC is still not downloading the brickOS firmware correctly. I will look into this problem and try to fix it. In the mean time, you can use firmdl3 which works correctly. John Hansen (21 years ago, 23-Jan-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | BricxCC release 3.3.7.7
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I've released version 3.3.7.7 of BricxCC today. It adds a Spybot EEPROM tool window. It adds a new configurable watch tool window. It adds a new generic set source value tool window. It adds a hot key (F2) for the pbForth console. The position of (...) (21 years ago, 22-Jan-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics)
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| | Re: brickOS & Cygwin with BricxCC
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(...) Thanks again for testing this for me! (...) The Send Messages tool window can send any IR message from 0 to 255 to a brick. John Hansen (21 years ago, 22-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: brickOS & Cygwin with BricxCC
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(...) Its true, Before John "fixed" the older OS issues, I was at my whit's end and was prepared to do damage to myself with a fork -- after unsuccessfully trying to install BrickOS.... but now, thanks to John and Bricxcc my cutlery is safely (...) (21 years ago, 22-Jan-04, to lugnet.robotics.rcx.legos)
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| | brickOS & Cygwin with BricxCC
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Yesterday, I replaced the two installers I have up on my bricxcc.sourceforge.net site with slightly modified versions. The new installers contain a new cross compiler which I built from 2.95.2 myself (rather than the one Hitachi provided some time (...) (21 years ago, 22-Jan-04, to lugnet.robotics.rcx.legos)
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| | Has anybody successfully added an RCX to 7471 Mars Rover?
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Ever since I picked up the 7471 Mars Rover a few months ago, I thought it screamed out for an RCX modification. I saw a lot of discussion about the possibility, but didn't find where anybody had actually successfully done it. Now that BrickFest PDX (...) (21 years ago, 22-Jan-04, to lugnet.space, lugnet.robotics, lugnet.org.ca.rtltoronto, lugnet.robotics.rcx.legos, lugnet.org.us.smart, lugnet.org.scibrick)
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| | Re: NEWBIE question : installing BrickOS
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(...) Or you can just skip the make strip step entirely. All it does is reduce the size of your executables but that has no bearing whatsoever on whether they function. Try opening a DOS box, change directory (without entering the BASH shell) into (...) (21 years ago, 21-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: NEWBIE question : installing BrickOS
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(...) Try make fontdesign in the util directory to build fontdesign.exe, and then do the make strip again. (21 years ago, 21-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS Assembler
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(...) Volatile tells the compiler that should assume the value can change without the compiler's knowledge. So yes, it gets reloaded every time. (...) To find this stuff, you need to read through documentation for GCC. It has been a few years since (...) (21 years ago, 21-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS Assembler
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(...) Oh, I see. That's nifty. So a 'volatile' keyword ensures that it's reloaded every time? (...) Which doc is this? The only ones I have are the BrickOS command reference (it's a shorter HTML one), and the software manual from Hitachi. (...) (...) (21 years ago, 20-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS Assembler
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(...) Glad to help! (...) However, it *does* work for bytes... See the program below. In your example program, you declared the "total" variable as an unsigned short (which is a 16-bit word), but accessed it using an 8-bit move instruction. Instead, (...) (21 years ago, 20-Jan-04, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS Assembler
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(...) PERFECT. That was exactly what I was looking for. Clearly, the @_variablename method only works for words and not bytes. This had been my problem. Thanks very much. And thanks to everyone else who contributed too... I'm just a sucker for the (...) (21 years ago, 19-Jan-04, to lugnet.robotics.rcx.legos)
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