S32K142 EVB always in reset mode

[Gauri_n]

We were trying to debug issue with CAN communication not working in S32K142 EVB.

To confirm if the HW is not having any issues PTE4 and PTE5 were configured as GPIO Output and these pins were toggled every 5ms. After flashing this SW, we had observed the toggling of PTE4 and PTE5. But when we tried to connect it from next time the EVB is continuously reset in debugger.

The board was powered up using 12V power supply for checking CAN communication.

We did try the steps mentioned in the below link. But this has not solved the issue.

https://community.nxp.com/t5/S32K/S32K142-EVB-board-bricks/td-p/1157563

Could you please let us know if anything else can be done to solve this issue?

[Gauri_n]

Hi,

When we tried the debug option available in S32DS using OpenSDA, the board is connected and we are able to debug.

But still we are facing issue when connecting to debugger. We are using iSystems debugger in our project. Is there anything else that can be checked to understand why the debugger is not getting connected?

[Robin_Shen]

Please install iSystem debugger for S32DS by follow S32DS_ARM_User_Guide.(C:\NXP\S32DS_ARM_v2.2\S32DS\help\pdf)

Best Regards,
Robin
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[Robin_Shen]

Hi Gauri_n,

Please show me the waveform image of RESET_b by using oscilloscope. You can measure the Pin3 J104(RED) and TP506(GREEN)

If there is no program in S32K142, then it may reset (high pulse) every 117us. You should be able to recover MCU by flash a program to S32K142.
You can also check if the OpenSDA is OK. Press SW5 and then plugin USB cable, release SW5. Click the SDA_INFO in BOOTLOADER. Check the OpenSDA information.

Best Regards,
Robin
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