MCXN947 having Ee(42) error

[nxpsachve]

Hi,

       I'm having troubles with FRDM-MCXN947 development board. The board is unable to connect to chip's debug port making it difficult to erase or flash new FW.

       I was able to use the board for some time and ran couple of examples without issues but recently it starting giving issues while trying to debug.

      I tried to follow some earlier post about the same issue on FRDM-MCXN947 but it didn't help to fix it. 

      If anyone can provide me with some inputs on how to fix this issue then it will be helpful.

 Regards,

Sach

[Alice_Yang]

Hi @nxpsachve 

Regarding your question, I recommend that you first perform a full erase using the SEC tool. Next, create a new workspace in MCUXpresso IDE and import an SDK demo project, such as the Hello World example. Then debug.

Download SEC tool from:

 https://www.nxp.com/design/design-center/software/development-software/mcuxpresso-software-and-tools... 

After install, connect board MCU-LINK port, then erase as below：

BR

Alice

[nxpsachve]

Hi Alice,

Thanks for your response.
I tried your suggestion but unfortunately it didn't work.
I saw an error message while doing it.

Regards,

Sach

[Alice_Yang]

Hello @nxpsachve 

Thanks for your reply.

Do you have security - related settings configured on your board?
Please refer to my video to set your board to the default settings.

If still have any issue, please feel free to contact me.

Thank you.

BR

Alice

[nxpsachve]

Hello Alice,

     I'm still facing connectivity issue while using secure provisioning tool as shown below.

Regards,

Sach

[nxpsachve]

Hi Alice,

       I tried again after setting my board to ISP mode and was able to follow your video.

       But when tried to Erase it end up with issue.

Regards,

Sach

[Alice_Yang]

Hello @nxpsachve 

- Please take a photo of the chip on your board. I want to see the mask.

- Please also record a video of the steps you take, following the video in my attachment.

Thank you.

BR

Alice

[nxpsachve]

Hi Alice,

      Here are the details.

      Actually, now I' unable to get any dbg port on the provision tool as shown in video"

Regards,

Sach

[Alice_Yang]

Hello @nxpsachve 

Thanks for your reply.

While I did not see your steps in your video. Even though there are no steps about connecting the board in ISP mode, only a SEC tool view is shown.

BR

Alice