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 Robotics / RCX / *9210 (-10)
  rcx brick fail to download
 
Hi, There are two unknown symbols on the RCX, I wonder if anyone could help me to understand it: 1) It had this upside down arrow at the bottom left of the LCD screen. This particular RCX 2.0 brick fails to download the firmware. I tried different (...) (20 years ago, 28-Mar-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
 
  RE: roboball experience?
 
Thanks to both Tom & Bernard for your input. I noticed they have a roboball compass. Have you incorporated this with the RCX brick? Or, will it work? --thanks in advance! --Elizabeth Mabrey -----Original Message----- From: news-gateway@lugnet.com (...) (20 years ago, 24-Mar-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
 
  Re: roboball experience?
 
(...) I can't comment on the sensors, but I do have experience w/the balls. The balls are of good quality, well-balanced, and they are a brilliant IR source. (Standard light sensors see them just fine.) However, battery life is quite short (approx. (...) (20 years ago, 23-Mar-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
 
  roboball experience?
 
Hi I have been looking into the roboball and the sensors kit. (URL) I wonder if there is anyone out there can share the experience of using this with the RCX. What does it take to install on the RCX? Thanks in advance for your help! -- Elizabeth (...) (20 years ago, 23-Mar-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
 
  Re: NQC release
 
(...) I've just uploaded a .tgz containing a Mac OSX version of NQC (provided by Rob Bates, the MacNQC developer). You can get it from the NQC website: (URL) also have replaced (again) the source code .tgz. It should work as well as the previous (...) (20 years ago, 22-Mar-05, to lugnet.robotics.rcx.nqc)
 
  linker error
 
I use brickos-0.2.6.10.6 with a gcc 3.4.2 crosscompiler and binutils 2.15. When I try to make an executable I get the linker error: "cannot handle R_MEM_INDIRECT reloc when using symbolsrec output" I use a patched Makefile.user for making: ## ## (...) (20 years ago, 20-Mar-05, to lugnet.robotics.rcx.legos)
 
  Re: IR Tower problems
 
(...) I think we may have found a problem. This is from /var/log/messages: Mar 19 22:52:42 pitr kernel: usb 2-1: new low speed USB device using ohci_hcd and address 8 Mar 19 22:52:42 pitr kernel: usb 2-1: Product: LEGO USB Tower Mar 19 22:52:42 pitr (...) (20 years ago, 20-Mar-05, to lugnet.robotics.rcx)
 
  Re: IR Tower problems
 
(...) Ok, the driver is loaded and major number 180 minor number 160 is correct. Do you see something like this: drivers/usb/misc/leg...sbtower.c: LEGO USB Tower #0 now attached to major 180 minor 160 drivers/usb/misc/leg...sbtower.c: LEGO USB Tower (...) (20 years ago, 19-Mar-05, to lugnet.robotics.rcx)
 
  Re: IR Tower problems
 
(...) I'm pretty sure the driver is loaded, this is the output from lsmod: Module Size Used by .. legousbtower 14912 0 .. usbcore 116808 4 legousbtower,ohci_hcd,ehci_hcd and I created /dev/usb/lego0 myself as a character devince with major number (...) (20 years ago, 18-Mar-05, to lugnet.robotics.rcx)
 
  Re: NQC release
 
Hi John, (...) YES, this version compiles fine under my Linux system with gcc 3.3.3. You do a real great job, thank you for all your work! Regards, Michael (20 years ago, 17-Mar-05, to lugnet.robotics.rcx.nqc)


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