How to connect Segger JLink to STM32WB55RE board?

[MK8290]

Hi,

My board has STM32WB55RE on it. I have developed the code from STM32CubeMx.

I am trying to program and debug via IAR workbench I am getting this error I have JLink v7.54a software installed. I opened the Jflash and tried to connect the target. It is connected and programmed successfully but the application didn't run.

The signals at SWD connector on my board

VTar - 3V

Gnd - 0V

NRST - 3V

SCLK - 0V

SWDIO - 2.5V

I tried another setup; I used SWD lines(ST-Link) from the Nucleo WB55 board to my board and did the program and debug. I was successful. I could see that the application is running. This confirms that the SWD lines on my board are correct.

With this setup,

VTar - 3V

Gnd - 0V

NRST - 3V

SCLK - 0V

SWDIO - 3V

How can I enable JLink for my board?

I see a difference of level SWDIO 2.5V and 3V in two different setups. Is this causing this problem?

Thanks