Hello,

I am currently trying to work with the S32K144W in a project but I am having difficulties using the JLink Ultra+ to flash the device. The JLink is able to connect to the target but fails at this step:

• Failed to prepare for programming.
  
• Could not preserve target memory
  

I have attached the console readout of the flash attempt with Ozone.

I was able to flash it with NXP S32DS but using Ozone or any other SEGGER software I am unable to erase flash or program it. I assume the S32DS is doing some different steps but I wasn't able to pinpoint what was the difference. The jlink commands seems to be very similar.

I am also at a point where I'd like to partition my device for flash storage and bootloader but I am concerned about locking the device if I can't mass erase and end up protecting the flash.


*****EDIT*****
I updated my Ozone version to the latest and obtain the following error:
Failed to preserve target RAM @ 0x1FFF8000-0x20006FFF.
Failed to prepare for programming.
*****EDIT*****

*****EDIT 2****
I was able to connect via JFlash and erase the whole flash. I was then able to flash with Ozone and also VSCode. I am not sure what happened when erasing the whole flash. I guess there is a flash registers that protect it somewhow. If anyone has any insights on this I would appreciate to understand better the change in behavior.
*****EDIT 2****

Thank you for your help!