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How to switch off 2nd core for Cortex-A9

Gery

I am using dual-core Cortex-A9 in a project where 1 core is enough.

How to switch off another unused core?

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    Hi gxk,

    In our dual core board, we choose the core through the following steps. hope that it will give you some help~

    echo '0' >/sys/devices/system/cpu/cpu1/online 

    you can close the second core
    echo '1' >/sys/devices/system/cpu/cpu1/online

    then you can open the second core~

    B&R

    Hedy

Reply
  • 0

    Hi gxk,

    In our dual core board, we choose the core through the following steps. hope that it will give you some help~

    echo '0' >/sys/devices/system/cpu/cpu1/online 

    you can close the second core
    echo '1' >/sys/devices/system/cpu/cpu1/online

    then you can open the second core~

    B&R

    Hedy

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