I have an application with the nrf52840 that was trying to port to nrf54l15 using ncs 3.2.1 but i ran into various issues. I decided to look into some samples that could help narrow down the problem. The application code is written in C++ for the most part
I started with this sample https://github.com/Toastee0/Seeed-Xiao-nRF54L15/blob/main/bluetooth/ble_button
removed these nodes from the overlay
&bt_hci_controller {
status = "okay";
};
&bt_hci_sdc {
status = "okay";
};
to make it actually use the softdevice (which seems counterintuitive) otherwise it would yell about the split link layer
renamed main.c to main.cpp and changed it in the CmakeLists.txt
and added this to the prj.conf
CONFIG_ZBUS=y
It does however work fine if CONFIG_CPP is not set. I can assume something is missing in the linker setup, but I couldn't see where, or why it would be different than with the nrf52840 where i have a very similar set of options, except there I set a specific standard.
I remember having a similiar problem with a pure zephyr project with the esp32 and zbus before this PR was merge https://github.com/zephyrproject-rtos/zephyr/pull/75915/
I get a bus fault when it is set like this
*** Booting nRF Connect SDK v3.2.1-73e28134fde1 ***
*** Using Zephyr OS v4.2.99-c8f087707f57 ***
[00:43:25.740,607] <inf> BLE_Button_Xiao: Starting BLE Button Sample for XIAO nRF54L15
[00:43:25.740,658] <inf> BLE_Button_Xiao: Set up button at gpio@10a000 pin 0
[00:43:25.740,723] <inf> bt_sdc_hci_driver: SoftDevice Controller build revision:
14 5e 00 04 a0 74 05 5d 9b 39 61 8b d7 51 28 2a |.^...t.] .9a..Q(*
fa c2 93 b8 |....
[00:43:25.740,928] <err> os: ***** BUS FAULT *****
[00:43:25.740,934] <err> os: Precise data bus error
[00:43:25.740,938] <err> os: BFAR Address: 0x4770e74d
[00:43:25.740,949] <err> os: r0/a1: 0x00000003 r1/a2: 0x00000001 r2/a3: 0x00000000
[00:43:25.740,956] <err> os: r3/a4: 0xaaaaaaab r12/ip: 0x9b5065a6 r14/lr: 0x00014947
[00:43:25.740,970] <err> os: xpsr: 0x01000000
[00:43:25.740,974] <err> os: Faulting instruction address (r15/pc): 0x00014946
[00:43:25.740,994] <err> os: >>> ZEPHYR FATAL ERROR 25: Unknown error on CPU 0
[00:43:25.741,012] <err> os: Current thread: 0x20003b00 (MPSL Work)
[00:43:27.501,958] <err> os: Halting system
If iti s necessary I can package this up in a complete sample, but I don't think the actual code matters here.
