Communication error while accessing MDM-AP.

[dittoxia]

Dear :

    We are using MKE15Z256VLL7 microcontroller,But encounter problems.

MCU suddenly can not download the program.list is the JLink.exe`s log:

Connecting ...

 - Connecting via USB to J-Link device 0  - Target interface speed: 4000 kHz (Fixed)  - VTarget = 4.962V  - ERROR: Kinetis (connect): Communication error while accessing MDM-AP.  - ERROR: Failed to connect. Could not establish a connection to target.

We suspect that MCU is locked up,So we're trying to unlock it,Here is our way to unlock and screenshots.

Eager for your help, thank you!

[Hui_Ma]

Hi

Please refer attached document about how to unlock the Kinetis chip.

Customer could follow the step 6: Using Erase_all_pin.jlk script with J-Link tool.

Wish it helps.

Have a great day,
Ma Hui
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