ncs-esb-ble-mpsl-demo hard faults on nRF5340

[jbreal]

I have compiled and run Torbjørn Øvrebekk's ESB MPSL sample (github.com/.../ncs-esb-ble-mpsl-demo) for the nRF5340, which works great, but the cpunet on the PTX side hard faults randomly after some hours. I made the requisite change to 'esb_peripherals.h' as indicated by the warning message printed on the console. No other changes were made. I have tried nRF Connect SDK 2.6.0 and 2.6.1.

[03:00:30.626,678] <inf> rpc_net: Send TX packet, data 0 0x31, len 8
[03:00:30.627,166] <inf> rpc_net: ESB TX success
[03:00:30.627,319] <dbg> rpc_net: rpc_esb_event_send: evt send ok
[00:00:00.000,488] <dbg> rpc_net: serialization_init: nRF RPC init begin
[00:00:00.101,074] <err> nrf_rpc_ipc: IPC endpoint bond timeout
[00:00:00.101,104] <err> NRF_RPC: Failed to initialize transport, err: -32
[00:00:01.101,226] <err> NRF_RPC: Not all groups are ready to use.
*** Booting nRF Connect SDK v3.5.99-ncs1 ***
[00:00:01.101,348] <inf> main: ESB BLE Multiprotocol Example - Netcore project
[00:00:01.101,409] <inf> bt_sdc_hci_driver: SoftDevice Controller build revision:
36 f0 e5 0e 87 68 48 fb 02 fd 9f 82 cc 32 e5 7b |6....hH. .....2.{
91 b1 5c ed |..\.
[00:00:01.101,806] <inf> bt_hci_raw: Bluetooth enabled in RAW mode
[00:00:01.102,050] <wrn> main: Change ESB_EVT_IRQ and ESB_EVT_IRQHandler in esb_peripherals.h to use SWI3 instead of SWI0!

ncs-esb-ble-mpsl-demo hard faults on nRF5340

[ovrebekk]

Hi John

Are you just running the default example, without making any changes to the appcore or netcore projects? 

Are you running the code on a standard nRF5340DK? 

Do you not get any more logging output from the netcore when the crash occurs? 

Best regards
Torbjørn

[jbreal]

Default example, no changes except as noted regarding SWI3. I tried both a standard build and with debug optimizations, in an attempt to set a breakpoint, but I haven't been able to figure out how to make that happen yet. I will run it again this evening to get more output for you. Each time I've run it before, I failed to enable logging in the serial terminal, and then accidentally resized the terminal and lost my output before taking a screenshot.