Boot Rom in MCU

Discussion in 'General Electronics Chat' started by aamirali, Oct 9, 2012.

  1. aamirali

    Thread Starter Member

    Feb 2, 2012
    415
    1
    What is the purpose of boot rom in MCU.

    Like in LPC1317 there is 16KB boot rom. How do I use it.
    Can it be used for data storage also.

    I read that it is used to load hex code of program into various section of memory......is it.
     
    Last edited: Oct 9, 2012
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    It is a place where a part of program that is responisble for updating the code should reside. The difference between boot rom and normal flash usually is that code executed from within the boot rom is able to reprogram the flash, while code running from flash is not able to do that.
    You can have a look at MSP430, their bootloader is pre-programmed, so you can use it from the get go, without buying a special programmer to load your code into the device.
     
  3. dataman19

    Member

    Dec 26, 2009
    136
    29
    Cool thread... Anyone know of a Boot ROM code source for an 8085 CPU?
    ..
    I have an application, and want to set it up to Point the start at a particular line of code.
    ..
    Dave
    Phoenix, AZ
     
  4. aamirali

    Thread Starter Member

    Feb 2, 2012
    415
    1

    that's mean if I use SWD or JTAG, basically they they access this boot rom part to program IC
     
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