What are the Basics of packet programming?

This is a discussion on What are the Basics of packet programming? within the C++ Programming forums, part of the General Programming Boards category; I am assign to program to send a packet header to a device through a serial port program... I am ...

  1. #1
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    Arrow What are the Basics of packet programming?

    I am assign to program to send a packet header to a device through a serial port program...

    I am not sure how to program a packet header like, do i convert the commands to binary or hexa...?How am i going to encapsulate the packets..?

    Thanks
    mind your own mind...

    PsychoMantis,

  2. #2
    Banned master5001's Avatar
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    Here is an analogous question: There is guy in the corner of the bar, I wanna talk to him so should I speak in japanese or russian?

    You need to know what the device you are talking to (i'm assuming there is actually a device and you aren't talking to a unused port) wants. If it needs a certain header than give it what it wants. That is where protocols like TWAIN and winspool come into play. As for the second part of the question (the part I patronized) the computer speaks in binary. It would be a lot of help if you tell me exactly what your game plan is here.

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    Question

    Ok for sending a packet to whatever source, how i keep the data inside the packet.
    the header is something like this

    <SOH> |<ETX> | <FF> | <NUL>

    <SOH>= start of header
    <ETX>= end of text
    <FF>= form feed
    <NUL>= null

    Thanks
    mind your own mind...

    PsychoMantis,

  4. #4
    Sir Mister Insane Sako Klinerr1's Avatar
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    does this even belong in c++ programming?
    Email: Klinerr1@nc.rr.com || AIM: MisterSako || MSN: sakotheinsane@hotmail.com

    -the shroom has spoken

  5. #5
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    Red face

    Erm...
    THis is the packet to send to the destination.
    the layout of the packet.
    I need to use c to send it.
    mind your own mind...

    PsychoMantis,

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