dll(1)


NAME

   dll - A user-program downloader for the RCX.

SYNOPSIS

   dll [options] command | {file}.lx

DESCRIPTION

   This manual page documents the dll user-program download command.

   dll  is  a  program which is used to download user programs written for
   brickOS to the RCX.

OPTIONS

   This program follows the usual  GNU  command  line  syntax,  with  long
   options  starting  with two dashes (`-').  The options supported by dll
   are:

   (run with no parms)
          Show built-in help (summary of options)

   -e, --execute
          Execute program after download.

   -i{0|1}, --irmode={0|1}
          Set IR mode (on RCX) to near(0) or far(1)

   -p{1-8}, --program={1-8}
          Download program to program-slot-number {1-8}

          NOTE: LegOS  supports  8  program  slots  where  the  Mindstorms
          original firmware only supports 5.

   -r{hostaddress}, --rcxaddr={hostaddress}
          Send  to RCX LNP at host address {0-15}.  Default is 0. See also
          --node={hostaddress}

   -s{srcport}, --srcport={srcport}
          Send to RCX LNP source port {0-15}

   -t{ttydevice} --tty={ttydevice}
          Specify serial tty device where IR tower is connected.

          NOTE: The environment variable RCXTTY may be used  in  place  of
          -tty

   -v, --verbose
          Enable verbose output

COMMANDS

   -d{1-8}, --delete={1-8}
          Delete program from program-slot-number {1-8}

   -n{hostaddress}, --node={hostaddress}
          Set RCX LNP host address to {0-15}

ENVIRONMENT VARIABLES

   dll  will  respond  to the environment variable RCXTTY.  This should be
   set to the serial device to which the IR tower is  connected.   Use  of
   RCXTTY is equivalent the using the -tty command-line option.

EXAMPLES

   dll  is  a  simple command to use.  The following examples show most of
   the uses.

   Ex1: download demo/robots.lx to the RCX as program 0.

      $ dll -tty=/dev/ttyS0 demo/robots.lx
      $

   NOTE: there is no response from dll(1) on a successful  download.   You
   can,  however  watch  the  RCX  display  during  the  download  and see
   activity.

   Ex2: download the demo/linetrack.lx into program-slot 7. (note  we  are
   first setting RCXTTY so we don't have to keep specifying the tty device
   each download).

      $ export RCXTTY=/dev/ttyS1
      $ dll -p7 demo/linetrack.lx
      $

   Ex3: download demo/rover.lx but we are  leaving  the  RCX  powered  off
   (assume RCXTTY is already set).

      $ dll -p2 demo/rover.lx
      error deleting program
      $

   NOTE: dll first deletes the existing program from the specified program
   slot and then downloads the new one.  This  error  indicates  that  the
   first thing dll tried to do did not succeed.

   We'll  leave  the  experiment  of  running dll with --verbose set as an
   exercise for you our reader...  (This  is  actually  a  combination  of
   progress information and debug output.)

ERROR MESSAGES

   Unfortunately,  there  is  basically only one dll error message, and it
   applies to most possible errors, including a disconnected IR tower,  an
   RCX  that  is  turned off, an RCX that doesn't have brickOS, and an RCX
   that has brickOS and is already running a program.  So, check all those
   things when dll fails.

SEE ALSO

   firmdl3(1)

AUTHOR

   dll was written by: Markus L. Noga.

   Addiitonal Contributor(s): everyone discussing LNP at LUGNET

   This  manual page was written by Stephen M Moraco <stephen@debian.org>,
   for the Debian GNU/Linux system (but may be used by others).





Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.