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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)
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| | Re: TIME STAMP for a LNP distributed robot
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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)
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| | TIME STAMP for a LNP distributed robot
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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)
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| | Re: brickos-0.2.6.10 .text is not within region ram
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(...) 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)
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| | Re: math.h
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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)
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| | math.h
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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)
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| | Re: Upgrade RCX?
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(...) 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)
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| | Re: brickos-0.2.6.10 .text is not within region ram
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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)
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| | brickos-0.2.6.10 .text is not within region ram
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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)
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| | Re: firmdl3: delete firmware failed
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(...) see Thread (URL) (21 years ago, 6-May-03, to lugnet.robotics.rcx.legos)
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| | Upgrade RCX?
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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)
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| | Re: firmdl3: delete firmware failed
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You answered this question to the exact same person too :-P (...) (21 years ago, 3-May-03, to lugnet.robotics.rcx.legos)
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| | Re: firmdl3: delete firmware failed
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(...) Arg i've answered .... in an other message nanobapt (21 years ago, 2-May-03, to lugnet.robotics.rcx.legos)
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| | firmdl3: delete firmware failed
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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)
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| | Re: Win98 installation of legos
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(...) 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)
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| | Re: Win98 installation of legos
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Theresa, (...) I have not experienced this error. I would suggest searching the newsgroup for "delete firmware" to see if others have. Ed (21 years ago, 2-May-03, to lugnet.robotics.rcx.legos)
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| | Re: Win98 installation of legos
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Ed, Thanks for your help! I am using the same version of cygwin that you are. I made the changes you suggested in the two .common Makefiles and now firmdl3 doesn't complain anymore. It does tell me "firmdl3: delete firmware failed", though. I don't (...) (21 years ago, 1-May-03, to lugnet.robotics.rcx.legos)
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| | Re: Win98 installation of legos
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Theresa, (...) cygwin. (...) What version of cygwin? If you are using Cygwin B20 you should upgrade. I don't have his book so I don't know his directions. Paolo Masetti has several sets of instructions which I feel is a good standard set. There can (...) (21 years ago, 1-May-03, to lugnet.robotics.rcx.legos)
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| | Re: Win98 installation of legos
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Hi Ed, I'm using legOS-0.2.6 because it was recommended in Jin Sato's book and I was following his directions for installing. I suppose I can always upgrade, but if the only difference is in the name... I am also using cygwin. Theresa (...) (21 years ago, 1-May-03, to lugnet.robotics.rcx.legos)
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| | Re: Win98 installation of legos
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Theresa, What version of legOS are you using? And what environment are you using under Win98; cygwin or winlegos (DJGPP)? And just wandering why legOS and not brickOS (which is a continuation of development on legOS with a name change to avoid legal (...) (21 years ago, 1-May-03, to lugnet.robotics.rcx.legos)
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