iMX257 : access the General Purpose Unsecured Status Register in order to monitor the wait mode

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iMX257 : access the General Purpose Unsecured Status Register in order to monitor the wait mode

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koichisakagami
Contributor II

Dear community,

We have been developing our product with iMX257.
We plan to use Wait Mode for low power consumption.
We would like to monitor the Wait state .

In reference manual (IMX25RM Rev. 2) ,
it seems that the GPUSR1(A_WFI bit ) indicates the ARM core standby wfi.

We would like to access  the GPUSR1 registe with JTAG-ICE.

[Question]
        What kind of method can we access GPUSR1 by?

        We can not find the GPUSR1 register address .
        How many value is the $BASE ?

    Best Regards,
    Koichi Sakagami

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Yuri
NXP TechSupport
NXP TechSupport

Hello,

  The mentioned General Purpose Unsecured Status Registers are accessible only in
JTAG debug mode. It is not used for general user applications.


Have a great day,
Yuri

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Yuri
NXP TechSupport
NXP TechSupport

Hello,

  The mentioned General Purpose Unsecured Status Registers are accessible only in
JTAG debug mode. It is not used for general user applications.


Have a great day,
Yuri

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

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koichisakagami
Contributor II

Dear Yuri san,

Thank you for your answer.

Best Regards,

Koichi Sakagami

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