Dear ST Support Team,
I am currently working with the P-NUCLEO-WB55 development board and using STM32CubeWB firmware package. I am trying to run the official example:
Projects/P-NUCLEO-WB55.Nucleo/Applications/BLE/BLE_HeartRateFreeRTOS
The project builds successfully, and I am flashing the application to CPU1 using STM32CubeIDE. The BLE stack firmware (stm32wb5x_BLE_Stack_full_fw.bin) has been successfully flashed to CPU2 using STM32CubeProgrammer and confirmed as "Firmware Upgrade Success".
However, the application consistently gets stuck at the following line in void APP_BLE_Init(void):
status = SHCI_C2_BLE_Init(&ble_init_cmd_packet);
This prevents the BLE stack from starting, and no further initialization happens. I have already ensured:
Low-power mode is disabled (CFG_LPM_SUPPORTED = 0)
The transport layer is initialized (shci_init() and TL_Enable() are called)
The debugger loses connection shortly after hitting this point, or the code enters Error_Handler() due to SHCI_Success not being returned.
I would greatly appreciate any help you can provide to resolve this issue — particularly in understanding why SHCI_C2_BLE_Init() is failing or hanging, despite the BLE stack being correctly installed on CPU2.
Please let me know if any additional logs, project files, or settings are needed.
Best regards,
Majd
