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Installing ns-3.37 and ns-3.35 in Ubuntu | Ubuntu 22.04 | NS3

Multiple Versions of ns3 in Ubuntu 22.04 In this post, we are going to install two versions of ns3 namely ns-3.35 and ns-3.37  My OS is : Ubuntu 22.04 LTS (Long Term Support) ns-3.35 uses waf and (./waf --run scratch/first)  ns-3.37 uses cmake  (./ns3 run scratch/first.cc) So we will install both the packages  Go through the video for complete instructions To start with  $ sudo apt update  $ sudo apt install build-essential autoconf automake libxmu-dev g++ python3 python3-dev pkg-config sqlite3 cmake python3-setuptools git qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0 ipython3 openmpi-bin openmpi-common openmpi-doc libopenmpi-dev autoconf cvs bzr unrar gsl-bin libgsl-dev libgslcblas0 wireshark tcpdump sqlite sqlite3 libsqlite3-dev  libxml2 libxml2-dev libc6-dev libc6-dev-i386 libclang-dev llvm-dev automake python3-pip libxml2 libxml2-dev libboost-all-dev  I have downloaded both the versions of ns3 fr

Software tools for Embedded Systems


Final Machine Implementable Software

  • Its like a table of address and bytes at each address of the system memory

  • The table has to read as a ROM image for the targeted hardware.

  • bytes are allocated for Stack Space, Startup code, ISRs, Kernels,etc

  • If the system is updated, then the storage of bytes in the System ROM image also to be changed or updated.
Software for a Processor Specific Assembly Language
  • This technique is widely used now a days, in which the programmer should aware of the processor specfic assmebly language to program

  • Cross Assembler is one which creates object code for a target architecture in which the input is the assembly language

  • Cross Compiler is one which creates object code for a different target architecture in which the input is a high level language

  • Linker is an entity in which the linking files or libraries which are required to execute a program are linked during the runtime.

  • Loader loads the program from the secondary memory to main memory.

  • Locator also called as relocator deals with the addressing issues in the main memory.

  • Device programmer or program burner which downloads the exe file into the Chip or IC.

Software in High Level Languages


  • Mainly C, C++ and Java are the languages helpful in designing embedded systems,

  • C is major source language for embedded Systems.

  • C contains----- Preprocessing, Main function, Interrupt Service Routines, Tasks (number of tasks 1....N), Kernel or Scheduler, Standard Libraries or functions.

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