 | | Re: code
|
|
yego, The wait_event function takes an event function as the first parameter, not a sensor number. You need something like (forgive any errors - I don't have LegOS available at work) int rotation_event_3(wakeup_t data) { if (SENSOR_3 == data) return (...) (24 years ago, 26-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | code
|
|
Hi, I'm a newbie to c++ and legOS. Here is my code. Do you know what is wrong with it cause I don't. Thanks /* s.c*/ #include <unistd.h> #include <dmotor.h> #include <dsensor.h> int main(int argc, char **argv) { /* turn it on */ (...) (24 years ago, 26-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: The Making of "Creative Projects with LEGO Mindstorms"
|
|
Cool site, Ben. Looking forward to your book! -- Bob Fay rfay@we.mediaone.net (URL) Erwin" <ben@alum.mit.edu> wrote in message news:GAsADu.56u@lugnet.com... (...) itself (...) (24 years ago, 26-Mar-01, to lugnet.books, lugnet.robotics, lugnet.robotics.rcx)
|
| |
| | The Making of "Creative Projects with LEGO Mindstorms"
|
|
(URL) week I had the opportunity to watch my book get printed. The book itself is about the process of making a robot -- so here is a website about the process of making the book -- which itself is very robotic! -Ben (24 years ago, 26-Mar-01, to lugnet.books, lugnet.robotics, lugnet.robotics.rcx)
|
| |
| | Re: The sound of train
|
|
Do you have any NQC code? Zhengrong (...) (24 years ago, 26-Mar-01, to lugnet.robotics.rcx, lugnet.trains)
|
| |
| | Re: Library use in LegOS
|
|
Jakob "Fepp" Engblom <fepp@ieee.org> wrote in message news:GAr7Gr.2v3@lugnet.com... (...) handled (...) Each program gets it's own copy (...) Hmmmm. Not sure. Wish I knew more about compiler internals... (...) have (...) It's all custom written - (...) (24 years ago, 26-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: cannot download RCX Code
|
|
(...) You might try disableing the FIFO (if it has one) in the serial port configuration. Depending on what other applications use the serial port, you will probably want to re-enable the FIFO when using those applications. Mike (24 years ago, 25-Mar-01, to lugnet.robotics.rcx)
|
| |
| | Re: legOS papers?
|
|
(...) I could do with some technical references for my bibiliography, and so after much searching[1], I can reveal that that AUC is Aalborg University, Denmark. Furthermore, most of the authors can be found in the Computer Science department: (URL) (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Linking failure when 'making' an lx file
|
|
(...) Syntax error: you are missing a parenthesis at the start, right after the if. But gcc should give a fat error at the ">" sign I believe. if( COND ) STATEMENT; if( (ul_var1 - ul_var2) > sizeof(uchar)) STATEMENT; (...) It is miraculous that the (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Memory Usage
|
|
(...) Having written a few embedded-systems compilers, I must say that using floating point on an 8-bit chip like the H8 is generally considered crazy. The values eat memory, and the libraries drawn in can get really large (at least for a production (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Library use in LegOS
|
|
Hi! Another technical question about LegOS: how are libraries like float handled today? Is there one copy linked into LegOS, or is each downloaded program equipped with its own copy? If I would use a different compiler, with a different set of (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: pass by refrence or value?
|
|
Some basic facts about C semantics: As already stated, globals MUST be volatile if they are accessed by more than one thread, otherwise reads and writes can be out of sync. What are the types of the variables involved? Scalar values like integers (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Obstacle detection : infrared sensor ??
|
|
(...) We have done this in C using LegOS (it is much easier to get it off the ground in nqc). The principle is simple: * Attach the light sensor in front of the brick, close to the IR tranceiver. preferably in a low position, since you want to (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | .lx format
|
|
Hi! I am presently helping some PhD students here at my university prepare the labs for a real-time course using LegOS. As part of the course, we want our students to experience a modern development environment for embedded systems, and have (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Obstacle detection : infrared sensor ??
|
|
(...) Yeah, I built a robot and programed it whith a nqc program that someone else wrote. I dont't remember who and I don't have any links, but I do remember how it worked The rcx would send out a infarad message every cauple of mlseconds and a (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Analogue Control of Pneumatics
|
|
Perhaps TLG should be meeting companies that produce valves of the same quality as those mentioned. It also sounds like the timing belt used for the test bed could be replaced or reinforced even more. -- Cheers ... Geoffrey Hyde "Xanthra47" (...) (24 years ago, 25-Mar-01, to lugnet.build, lugnet.general, lugnet.technic, lugnet.robotics.rcx)
|
| |
| | New Version of MacNQC
|
|
Hello, I have just released the final version of MacNQC 2.2. This release incorporates the latest (2.2 r2) version of the NQC compiler. Find and replace were added. An Auto indent mode in the editor was added. New RCX test and control panels were (...) (24 years ago, 25-Mar-01, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: Analogue Control of Pneumatics
|
|
Yep, and if you combine those high-speed, high-precision pressure regulators with low stiction cylinders and a fast PID controller you can get even better accuracy and repeatability. When I was working for an encoder company, I scavenged some parts (...) (24 years ago, 25-Mar-01, to lugnet.build, lugnet.general, lugnet.technic, lugnet.robotics.rcx)
|
| |
| | Obstacle detection : infrared sensor ??
|
|
Hey.. I don't know if this is a LegOS question, but here it goes... Is it possible to detect obstacles via the infrared sensor, before you bump into them ?? Like measuring reflection of infrared light or something... If it is... how ?? can anybody (...) (24 years ago, 24-Mar-01, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Analogue Control of Pneumatics
|
|
Hi I did some 'research' in this area about three years ago for the control of a pneumatic robot arm. It was quite simple positional control ie position the piston at any point in the cylinders stroke and hold it there. The controller was just a PC (...) (24 years ago, 24-Mar-01, to lugnet.build, lugnet.general, lugnet.technic, lugnet.robotics.rcx)
|
