S32K312: JTAG/SWD Locked out

[himonkoch]

I am using S32K312 uC for my project and am currently working on the Standby Power Mode mode.

I flashed my Application code into the uC wherein it automatically goes to Standby Mode after 3 seconds. Now I try to write another firmware into the uC but the JTAG debugger tool is not able to connect to the target chip.

The following error is seen when tried with the S32 Design Studio IDE.

I have tried connecting using J-link Commander CLI application as well and I get the following error.

Is there any other way to flash or erase the application code from the uC?

[Robin_Shen]

Hi

I just programmed Example S32K312 STANDBY wake up using RTC DS3.5 RTD300 to my S32K312EVB-Q172.
After pressing SW6 to enter Standby, S32DS v3.5 can still re-download the program through Segger J-Link.

So I'm not sure why you're having this problem. Maybe you can try the solution here: failed to power up dap after program s32k312 with pll0 equal 240M

Due to the Christmas vacation period, our response times may be longer than usual. We appreciate your patience as our team navigates this busy season. 
Please be assured, we are committed to responding your inquiries as quickly as possible. 
Thank you for your understanding and happy holidays!

Best Regards,
Robin
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