 | | Declaration of kernel_critsect_count
|
|
kernel_critsect_count is declared volatile in kernel/critsec.c, but without the volatile keyword in include/sys/critsec.h - this upsets gcc3. Please could these declarations be reconciled? Thanks, Max. (22 years ago, 15-Feb-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: no long range IR from laptop says Lego
|
|
Use a powered USB hub with the laptop. The power required for the USB IR Tower will come from the powered hub, rather than the laptop. - Rob (...) (22 years ago, 15-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: no long range IR from laptop says Lego
|
|
(...) No idea. I think these values are used for accounting, to ensure that all devices together don't exceed available power. But I don't know how well this is implemented. (...) Linux makes them available in readable form in /proc/bus/usb/devices (...) (22 years ago, 14-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: dll and the USB tower
|
|
I have the same problem (I posted a note 3 days ago "Problem with Brickos ..." # 20311). In addition I don't get firmdl3 to download the firmware. Are you running Windows or Linux? Hans (...) (22 years ago, 14-Feb-03, to lugnet.robotics.rcx.legos)
|
| |
| | How could I tell if I'd cooked the motor controllers ?
|
|
We had an informal Robo-Sumo thing at my work place tonight and I'm wondering if I killed my RCX. My 'bot had two gearmotors on A and two more on C to drive the wheels. Could they have drawn enough current when the 'bot was stalled to harm the RCX ? (...) (22 years ago, 14-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Program for a "pullback motor car"
|
|
Hello, I was too sure that I could manage to program this small and simple robot in Mindstorm 2.0, but have to stop it beacuse it got too complicated. Now I'm reading "Learn yourself C in 21 days" and the "NQC guide" and "NQC Tutorial", hope I can (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
|
| |
| | dll and the USB tower
|
|
Hi, I downloaded brickOS 0.2.6 and patched it to use the USB tower. All works well (firmdl3 is patched correctly, the module goes in, I can make my own .lx files), except for dll. When I try to download a .lx file into the RCX, dll hangs. The LED (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: now normally baumfamily != enteract
|
|
My free form description full of Url's didn't survive posting intact, but Lego replied all the same by email. After a thread of some length, we concluded: webmaster@lego.com welcomes reports of the broken links of lego.com. I'll next try to verify (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: no long range IR from laptop says Lego
|
|
(...) Fascinating stuff, thanks again. In particular, I didn't know Anyone had persuaded Windows to respond intelligently to Usb Configuration's of variable power. Anybody know if these descriptors already appear on the web somewhere? Else please (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Interactive C and USB tower ?
|
|
Does anyone knows a way to use IC4 with an USB tower ? TIA Philo www.philohome.com (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: RCX assembly instructions of Lego quality
|
|
Don’t forget Nostarch Press! They have 2 great books that are definitely worth looking at including Jin Sato's LEGO® MINDSTORMS The Master's Technique. I had the privilege of building his robotic dog last night and really had a lot of fun with it. (...) (22 years ago, 13-Feb-03, to lugnet.robotics.rcx)
|
| |
| | BricxCC release 3.3.7.2
|
|
Version 3.3.7.2 of BricxCC is now available. It fixes a bug in the Brick Piano (introduced in the previous version) which made it impossible to save the music to a file or to the clipboard. Music saved from the Brick Piano can now be in NQC, (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: no long range IR from laptop says Lego
|
|
(...) Its USB descriptors say there are two configurations with 100mA (I think these are for low and medium power), and two that require 500mA (high power mode). The LEGO USB Tower Interface Reference doesn't go into more details. Jürgen (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: no long range IR from laptop says Lego
|
|
Kindly offline I am informed: yes indeed, some laptop designs have been seen to support less than half of the specified 500mA max load for USB bus power. I wonder how many mA the USB IR tower does need. Pat LaVarre (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: H8300 Cross Compiler for Mac OS X (a start ...)
|
|
Once again, WARNING! WARNING! WARNING! I have NO prior experience with the Mac or Mac OS X. So use these instructions AT YOUR OWN RISK. I am NOT responsible for any damage you might cause to your machine. Within step 5, you can download gcc ver 3.1 (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx.legos)
|
| |
| | Re: RCX assembly instructions of Lego quality
|
|
(...) Hi Pat, Syngress has two books out dedicated to RCX models. (URL) One of the Robots in the Ultimate Builder's book is mine. It is a two legged walker. The newsgroup (URL) is dedicated to building instructions. From there you can get to the (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
|
| |
| | no long range IR from laptop says Lego
|
|
Does the Lego USB IR tower, when set to long range, sometimes draw more than the 500mA allowed? Or do laptops generally not reliably supply 500mA? Or are we facing some deeper analog issue here, like not ramping up to 500mA from less mA fast enough (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: usb to ris 1.x rcx ir how
|
|
(...) Contributing evidence includes the Lego claim that the entire new kit can be made to work in Win XP: (URL) happy to announce that Robotics Invention System 2.0 will install and run on Windows XP, if special installation instructions are (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx)
|
| |
| | Re: now normally baumfamily != enteract
|
|
(...) (URL) correctly points to: (URL) now responds to a text search for "NQC". (...) To get a mail form to try, all you have to do is choose the Support button rather than the Customer Service button and accept a division of the community by (...) (22 years ago, 12-Feb-03, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: measure distance traveled
|
|
(...) I'd use a dual differential drive with (one motor fwd/rev, one motor turns) to ensure a straight line of travel and the a rotation sensor to measure the wheel rotations. If you don't have a rotation sensor use a light sensor to emulate one. (...) (22 years ago, 11-Feb-03, to lugnet.robotics.rcx.legos)
|
