BLE connection fails when project is generated for IAR (works with CubeIDE) on NUCLEO-WBA55CG

[Kenwang]

I am facing an issue with BLE connection on the NUCLEO-WBA55CG board.

Using the same .ioc file:

• When I generate the code for STM32CubeIDE, the project builds and runs fine, and I can connect to the device successfully using the ST BLE Toolbox app.

• But when I generate the code for IAR, the project builds and runs, but the device cannot be connected. On the Android app, when I press Connect, it briefly shows Connecting and then reverts back to Connect, without establishing the connection.

So the only difference is the toolchain (CubeIDE vs IAR).

Environment:

• STM32CubeMX 6.15

• STM32Cube_FW_WBA 1.7.0

• IAR Embedded Workbench (please fill in your version here)

• STM32CubeIDE 1.19.0

• IAR 9.60

Has anyone experienced this issue? How can I make the BLE connection work properly with IAR as well?