what is bootloader

Discussion in 'Embedded Systems and Microcontrollers' started by puneetnepsam, May 12, 2009.

  1. puneetnepsam

    Thread Starter New Member

    May 12, 2009
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    what is meant by bootloader with respect to the microcontrollers

    one person who has devoloped one host application is saying to me that he wants one bootloader application from me( i am on the frmware side)

    please tell me...what he means to say..
    what does bootloader application means exactly
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. lightingman

    Senior Member

    Apr 19, 2007
    374
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    Hi there,

    A bootloader is a small program that resides at a location within the microcontrollers program memory. on switch on or reset, it looks for a signal on the serial input pin. If it finds it, it loads that program code serialy from the programmer / PC and then runs that program. If no signal is detected, it will just carry on and run as normal. It simply means that you can program and re-program in curcuit and not have to keep putting it in the programmer.

    Daniel.
     
  4. puneetnepsam

    Thread Starter New Member

    May 12, 2009
    5
    0
    thanks a lot....
     
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