Hi everyone,
I am encountering an issue while trying to run the Zephyr Bluetooth peripheral sample on a Nucleo-WB55RG board.
I am currently working with the Zephyr main branch (specifically commit v4.3.0-2267-g3be4c4c5a819).
Hardware & Firmware Setup:
I have explicitly started the Wireless Stack on the M0+ core (using STM32CubeProgrammer), but upon booting the Zephyr application on the M4 core, I get a kernel oops regarding an HCI command timeout after like 10 seconds.
Error Log:
*** Booting Zephyr OS build v4.3.0-2267-g3be4c4c5a819 ***
[00:00:00.017,000] <inf> fs_nvs: 2 Sectors of 4096 bytes
[00:00:00.017,000] <inf> fs_nvs: alloc wra: 0, fe8
[00:00:00.017,000] <inf> fs_nvs: data wra: 0, 0
ASSERTION FAIL [err == 0] @ WEST_TOPDIR/zephyr/subsys/bluetooth/host/hci_core.c:506
Controller unresponsive, command opcode 0xfc0c timeout with err -11
[00:00:10.018,000] <err> os: r0/a1: 0x00000003 r1/a2: 0x00000000 r2/a3: 0x00000002
[00:00:10.018,000] <err> os: r3/a4: 0x00000003 r12/ip: 0x00000010 r14/lr: 0x08005b6b
[00:00:10.018,000] <err> os: xpsr: 0x01000000
[00:00:10.018,000] <err> os: Faulting instruction address (r15/pc): 0x08005b78
[00:00:10.018,000] <err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0
[00:00:10.018,000] <err> os: Current thread: 0x20001428 (unknown)
[00:00:10.056,000] <err> os: Halting system
I selected Wireless Stack V1.20.0.2 based on the compatibility table provided in the zephyrproject-rtos/hal_stm32 repository: https://github.com/zephyrproject-rtos/hal_stm32/blob/2c18f2b49d66d23cabfbd20dd7dbbaef8ee9520b/lib/stm32wb/README.rst
The error opcode 0xfc0c seems to point to ACI_HAL_WRITE_CONFIG_DATA, suggesting a communication issue between the Host (Zephyr) and the Controller (M0+ Coprocessor) during initialization.
Has anyone experienced this timeout with the recent Zephyr main branch on STM32WB? Is there a specific configuration or a different stack version required for the latest main branch?
Thanks in advance for your help.
