 | | Re: Varying the output voltage?
|
|
(...) The eight different power level pulsing is called "PWM", translation=Pulse width modulation. PWM is the way a digital chip cheats/mimics true analog without a D/A convertor. Since the only output of a digital chip is on or off, there is no (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
|
| |
| | Varying the output voltage?
|
|
I was wondering if it was possible to control the speed/torque of the motor by varying the output voltage in brickOS. It seems that the speed parameter on the motors only changes the rate at which they pulse on and off. I am looking for something (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
|
| |
| | Communication between RCX
|
|
Hello there, I've wrote a little library who permit you to communicate with RCX easily All information is in the package (URL) (21 years ago, 13-Jun-03, to lugnet.robotics.rcx.legos)
|
| |
| | BrickOS Talking to Robolab?
|
|
Has anyone used BrickOS to talk to Robolab? I really like the Robolab visualization tools and it would be a shame to not be able to fool Robolab into to talking to the BrickOS firmware. I am in the process of designing a simple Fuzzy controller and (...) (21 years ago, 11-Jun-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: DCC for the RCX
|
|
(Sorry, did FUT to .legos, but didn't post to it. I'm such a newbie!) (...) (21 years ago, 10-Jun-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: DCC for the RCX
|
|
Hi Ralph, I should be able to extract the source for the low level driver routines this week. If anyone else is interested, please email me. Note for BrickOS users: it's not simply a matter of plonking the routines into a program. The kernel will (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains, lugnet.robotics.rcx.legos)
|
| |
| | Re: brickos-0.2.6.10 error
|
|
Scott, You need to put a .depend file and Makefile inside the directory you are compiling the programs in. Just create a file with the extenstion .depend and put it into your programs directory. There dosn't need to be anything in the file. When you (...) (21 years ago, 3-Jun-03, to lugnet.robotics.rcx.legos)
|
| |
| | brickos-0.2.6.10 error
|
|
I get this when ever I try to compile a program. Scott Davis@Scott ~ $ cd /brickos/programs Scott Davis@Scott /brickos/programs $ dir Makefile motor.c Scott Davis@Scott /brickos/programs $ make motor.lx Makefile:51: .depend: No such file or (...) (21 years ago, 2-Jun-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: PC to RCX communication
|
|
You may check out javastorms at www.javastroms.org. The project seem to be abandoned, but the code is available. Basically it does what you aim for so it should be a good starting point. I have used the code as base for some of my own projects and (...) (21 years ago, 26-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: PC to RCX communication
|
|
This Thread could probably answer more :) (URL) this helps "Shehryar Shaheen" <shehryar.shaheen@ul.ie> wrote in message news:HFD5yE.1pxM@lugnet.com... (...) a (...) java.comm (...) (21 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: PC to RCX communication
|
|
It's been a while since I last played with LNP but I can recall that it works well under Linux. The LNP deamon must be running on the PC before the RCX and the PC can communicate. I think with windows you still need the LNP deamon running under (...) (21 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | PC to RCX communication
|
|
I'm working a project to communicate from a PC to an RCX running the current version of BrickOS-0.2.6.10. I'm running windows 2000 professional and I use the current version of Cygwin. The idea behind the project is to create a Java application that (...) (21 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | BricxCC release 3.3.7.5
|
|
Version 3.3.7.5 fixes two bugs with the copy to clipboard function on the Analysis graph. It fixes the Clear Memory function so that it now clears all five program slots (it used to leave slot 1 untouched). It fixes form and component size issues (...) (21 years ago, 22-May-03, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
|
| |
| | Re: USB on winXP/2k problem: cannot download
|
|
(...) Dear all, Sorry. I made a mistake. I had installed 2.5 instead of 2.6.10 of brickos. Now it works fine. Many thanks, G. (21 years ago, 22-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | USB on winXP/2k problem: cannot download
|
|
Dear All, I have installed cygwin, compiled brickOS and tried to download the firmware and software. I cannot make firmdl3 or dll to work: "Error 2: Opening USB" The same error when the tower is attached and when it is not. I can download the (...) (21 years ago, 22-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: R: Upgrade RCX?
|
|
Hi, the board is still under development, do far I dont have any PCB layout. All is done on a prototype board and not all comonents tested yet. A simple port of BrickOS is also not possible, because of the complete different structure of the µC. I (...) (21 years ago, 21-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
|
| |
| | Re: brickos-0.2.6.10 CONF_DSENSOR_MUX problem
|
|
I tried the following program and it seems to be doing something useful with the sensor power. I looked at it on the scope and it generates a regular pattern with 10ms pulses. I don't have one of these sensor mux devices so I can't actually tell if (...) (21 years ago, 19-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | R: Upgrade RCX?
|
|
I'm using Lego MindStorms for didactical laboratory at Politecnico di Torino. I'm interested in your project. I have two questions: Would it be difficult to reproduce in multiple copies your board? How do you solve the problem of porting the (...) (21 years ago, 17-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
|
| |
| | Re: Upgrade RCX?
|
|
(...) Hi Rand, I have started an hardware replacement for the RCX. Its based on an 16bit µController, an Infineon (Siemens) C164 with 128kb flash, 128kbSRAM and 64kb EEPROM. The controller plus the all memory is on a module from Phytec "Dipmodule (...) (21 years ago, 17-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
|
| |
| | gcc-3.3 - multi-line string literals
|
|
GCC 3.3 has made multi-line string literals a syntax error. (They were deprecated from 3.0). This is very annoying, because they made lots of sense for things like inline asms, and brickOS has lots of them. Below are patches which append \n\ to the (...) (21 years ago, 17-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | brickos-0.2.6.10 CONF_DSENSOR_MUX problem
|
|
After I have done the changes desribed in thread: (URL) brickos-0.2.6.10 .text is not within region ram now i can compile the kernel with CONF_DSENSOR_MUX. But the DSENSOR_MUX does not work. I have checked this item with an osciloscope on the (...) (21 years ago, 15-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: usb & lnpd
|
|
(...) hi! (...) nothing to do with his patches... (...) hm, that did work for me. (...) i will send you my patches. have fun! flo. (21 years ago, 9-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: usb & lnpd
|
|
Mason, As fas as I know the usb support under linux it's not finished, some part (such as receiving works, but it's not transparent, as if you had the serial tower). You can check the current satus at: (URL) way would be to run cygwin under windows (...) (21 years ago, 9-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | usb & lnpd
|
|
Hi. I 've got a ris 2.0 with usb tower and about two weeks ago for the first time dll and firmdl work with legos 2.5 with instructions found at: (URL) tried with the patch legos-0.2.6-linux-us...stdl-sched with legos.0.2.6 but it don't work at all. (...) (21 years ago, 9-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: TIME STAMP for a LNP distributed robot
|
|
Thanks Mark for your idea, it's better to have a different global time than the one of the kernel. Best Regards, CarlosLuis Rendon M. "Mark Riley" <markril@hotmail.com> wrote in message news:HEIyDt.16s5@lugnet.com... (...) (21 years ago, 7-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: TIME STAMP for a LNP distributed robot
|
|
BTW, make sure you include: #include <time.h> Otherwise, get_system_up_time() will only return 16 bits! Mark (21 years ago, 7-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: TIME STAMP for a LNP distributed robot
|
|
Hi, The sys_time variable is the basic timekeeper for BrickOS. It is a 32-bit integer that is incremented every millisecond by the kernel. In older versions of the kernel you could access the variable directly, however, in 0.2.6.10 and later you (...) (21 years ago, 7-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | TIME STAMP for a LNP distributed robot
|
|
Hi, I'd like to make a basic implementation of a time stamp on a distributed schame, using Lamport's algorithm. It states basically that when a node receives a message, it get the time stamp that's contained on it, and compares with it's own, if the (...) (21 years ago, 7-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: brickos-0.2.6.10 .text is not within region ram
|
|
(...) Dear Mark I will check the demo programs and more stuff. If i'm not wrong it looks to me that now we have 16K for the kernel ( c000-b000) = 4Kb more. If i got the results, i'm coming back to the forum. best regards Bernhard (21 years ago, 7-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: math.h
|
|
Oh note : you need to compile with -lfloat your kernel if you want to include it into kernel just add -lfloat to $LIBS in the Makefile.kernel nanobapt (21 years ago, 6-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | math.h
|
|
Hello all, I've written some math usefull library ! here is my work. It's not really optimized and I'm afraid cause I see the memory place down ... If someone want help me ... Have fun nanobapt /*test.c*/ #include <math.h> #include <conio.h> int (...) (21 years ago, 6-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Upgrade RCX?
|
|
(...) take a look at Robobricks (URL) also playing around with such an idea, but smaller (most devices should fit in a 2*4 brick) and faster (115 kBaud bus). My first notes can be seen here (URL) regards, Stef Mientki (...) (21 years ago, 6-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
|
| |
| | Re: brickos-0.2.6.10 .text is not within region ram
|
|
Hi Bernhard, Apparently the kernel is getting too big! By defining CONF_DSENSOR_MUX, enough extra code was generated to make the kernel exceed 12K. If you go to Makefile.user in the main BrickOS directory, change the following lines: # Base (...) (21 years ago, 6-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | brickos-0.2.6.10 .text is not within region ram
|
|
I changed in /boot/config.h the //#define CONF_DSENSOR_MUX //!< sensor multiplexor TO #define CONF_DSENSOR_MUX //!< sensor multiplexor Enviroment: Latest Version: Cygwin 1.3.22-1 WIN2000 brickos-0.2.6.10 + gcc-2.95.2 + binutils-2.10.1 + Hitachi (...) (21 years ago, 6-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: firmdl3: delete firmware failed
|
|
(...) see Thread (URL) (21 years ago, 6-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Upgrade RCX?
|
|
Has anyone ever tried to upgrade the memory in the RCX? ( External RAM that is ). What about upgrade the CPU to 60kbyte PROM version? No need to use expanded mode, then a ton of I/O would be available... Anyone thought about building a RCX (...) (21 years ago, 6-May-03, to lugnet.robotics.rcx.java, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
|
| |
| | Re: firmdl3: delete firmware failed
|
|
You answered this question to the exact same person too :-P (...) (21 years ago, 3-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: firmdl3: delete firmware failed
|
|
(...) Arg i've answered .... in an other message nanobapt (21 years ago, 2-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | firmdl3: delete firmware failed
|
|
Hello, Has anyone run into this problem? Running this command: firmdl3 legOS.srec results in this message: firmdl3: delet firmware failed Theresa (21 years ago, 2-May-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Win98 installation of legos
|
|
(...) This error indicate to you that communication is really bad or RCX have a firmware locked in memory !! Try to download the program with -s option like that (firmdl3 -s PATH/legOS.srec) Or try to erase firmware by erase RAM nanobapt (21 years ago, 2-May-03, to lugnet.robotics.rcx.legos)
|
