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TI Home » TI E2E Community » Support Forums » Microcontrollers » Stellaris® ARM® Microcontrollers » Stellaris® ARM® LM3S Microcontrollers Forum » How to rollback my BOOTCFG register ?
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How to rollback my BOOTCFG register ?

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Indranil
Posted by Indranil
on Apr 13 2012 00:53 AM
Prodigy130 points

Hi,

                  I am using LM3S9B92 microcontroller. In one of my application I have committed BOOTCFG register to some pin to access Rom bootloader. According to stellaris documents, if BOOTCFG register is committed once, I can only go back to previous setting using "Recover Locked Device" sequence. Is there any easy way to uncommit this register or is there any provision in LM flash programmer so that I can roll back my BOOTCFG register (NW bit in BOOTCFG reg) to previous setting. I have gone through Recover Locked Device" sequence in LM3s9b92 datasheet, but didn't understand it properly.

With regards,

 

Indranil

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  • David Racine
    Posted by David Racine
    on Apr 14 2012 01:09 AM
    Verified Answer
    Verified by Indranil
    Expert5350 points

    Indranil,

     

    A Debug Port Unlock, under the 'Other Utilities' tab, in LMFlash performs this sequence for you.

     

    Give that a try.

    -Dave


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  • Indranil
    Posted by Indranil
    on Apr 19 2012 06:29 AM
    Prodigy130 points

    Hi Dave,

    Sorry for late reply...I have tried what u said...and now its working fine...Thanks :)

    Indranil

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