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 Robotics / RCX / legOS / *2449 (-20)
  Release candidate legos-0.2.5.2 avail for testing
 
Details regarding release content, download instructions and how to provide feedback are at (URL) change detail specific to 0.2.5.2 see the file: ChangeLog Highlights: Added missing file TODO Repaired slow-mode IR comm. for Linux We look forward to (...) (22 years ago, 12-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: Light Sensor help
 
(...) I had a similar problem using RoboLab. I had a task that looped and checked the light sensor once in each loop. If the light sensor changed within the loop but NOT at the time when the check was made it would be missed. I replaced it with a (...) (22 years ago, 9-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: Light Sensor help
 
I’ve never had any problems with the light sensor reading fast enough, and I have a robot that runs pretty fast. How are you trying to follow the line? Maybe there’s a problem with your conversion between NQC and LegOS. I’d be glad to offer (...) (22 years ago, 9-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: Light Sensor help
 
The hardware can get a light sensor reading every 1 mS. Is the process that is reading the light sensor at a high enough priority? Kevin "Nathan Nesbit" <natenez@hotmail.com> wrote in message news:Gu7zno.41A@lugnet.com... (...) issue (...) motor (...) (22 years ago, 9-Apr-02, to lugnet.robotics.rcx.legos)
 
  RE: Light Sensor help
 
Try replacing the batteries -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of Nathan Nesbit Sent: Sunday, April 07, 2002 8:25 PM To: lugnet.robotics.rcx....lugnet.com Subject: Light Sensor help (...) (22 years ago, 9-Apr-02, to lugnet.robotics.rcx.legos)
 
  Light Sensor help
 
I'm a new legos user and I'm trying to get my first app working. The issue appears to be that the light sensor value isn't getting updated as frequently as I expected. When I slow down the motors my line tracking program works fine. I speed it up (...) (22 years ago, 7-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key - THANKS!
 
(...) Have you tried the lnp checksum optimization patch? This could help, too Mike (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key - THANKS!
 
"Michael Obenland" <obenland@t-online.de> wrote in message news:Gu9BHq.BEv@lugnet.com... <snip> (...) control. (...) influence (...) have (...) But I (...) Mike, I had experienced intermittent problems with downloading programs until I changed the (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: Release candidate legos-0.2.5.1 avail for testing
 
(...) dll doesn't work with serial tower in slow mode. In util/dll-src/rcxtty.c please fix the line setting the ios flags to: ios.c_cflag = CREAD | CLOCAL | CS8 | (highspeed ? 0 : PARENB | PARODD); Mike (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key
 
(...) When you use firmdl3, changing anything inside the lnp handler won't do anything useful! The code resposible for fast downloading is the small assembly code transfered before the legOS download starts. (...) Don't do that! legOS 0.2.5 ran on (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key - THANKS!
 
Wow! I am so glad this worked. I entered a bug for the program.c changes earlier today (on sourceforge) and will enter one for the readme change. (However, we could solve the problem by updating dll as well... to find the parameter in any location) (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key - THANKS!
 
(...) Fine to hear you are up and running. (...) No, I don't think so. In fact, using dll with the right parameters does the trick. Sorting out what you have written, I think you downloaded all your programs to slot 0, your old program was deleted (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key - THANKS!
 
I tried doing "dll -pX prog.lx" instead of "dll prog.lx -pX" and it works! Thanks. It would be good if Joe Wooley's alteration to program.c could be included in the next version of legOS because it does the trick with the "keeping alive" and "error (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key
 
Well, I am sorry to say that I don't have a solution for that problem. I haven't experienced this before. I am glad to hear that the program download doesn't fail anymore; and I will request that 0.2.6 contains a similar fix. Ok, another suggestion: (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key
 
I don’t know if it makes any difference, but I always put the destination before the name of the program. Ex: “dll -p1 hello.lx” Steve (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key
 
Sorry, no. That's the one difference; it no longer says error deleting program and I don't get any errors when downloading to the RCX. I always use firmdl3 -s because using just firmdl3 on its own never works for me. I still have the problem that (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key
 
After making the change, do you still get "Error deleting program"? or other errors while downloading the program? Your assumption is correct, it will only switch to a program slot if there is a valid program there. I had problems sending programs (...) (22 years ago, 8-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key
 
I just tried this and it has no effect. By the way, I'm using Cygwin B20 under Windows 98 with a com port IR thing, and LegOS 0.2.5. The same thing happened using WinLegOS and 0.2.3. Pressing the PRGM key has no effect in any situation - I assume it (...) (22 years ago, 7-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: The PRGM key
 
I had similar problems when using legOS with CONF_TM defined in boot/config.h What I found was that the lnp handler was not getting enough processing time and was missing some data at times. Try the following fix and let me know if it helps. If so, (...) (22 years ago, 7-Apr-02, to lugnet.robotics.rcx.legos)
 
  The PRGM key
 
I quote from the original readme: "Type "dll demo/helloworld.lx". If all is well, it should be automatically relocated and transmitted to program slot 0. Press the RUN key to run. The program stops automatically. Type "dll demo/rover.c -p1" to (...) (22 years ago, 7-Apr-02, to lugnet.robotics.rcx.legos)


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