nRF54L15 stall in sdc_hci_cmd_le_set_adv_enable

[Nguyen Hoan Hoang]

Hi,

I'd like to know what is the cause of the stall in 

sym_E5Q6O4GY4KO3GMW7WJYXLZKHO7ZGDWLU4ZPAKWA() at 0xa55a

when calling sdc_hci_cmd_le_set_adv_enable ?

Here is the call stack : 

sym_E5Q6O4GY4KO3GMW7WJYXLZKHO7ZGDWLU4ZPAKWA() at 0xa55a
sym_JIJASGQH4XEEPZL7D35VQHVPKKLANGDBS2M46NQ() at 0x1c260
sym_P35ZNYRPUOIDHAE32RQYT4RWXL5RC6UIZKLHPUQ() at 0x1532e
sym_JU2KBYZVAT7EYGVZA4FU7TNK2PDUQNCWUBE5MWQ() at 0x15ca6
sdc_hci_cmd_le_set_adv_enable

It seems to be stuck in an infinite loop here : 

NOTE: The same code works fine on nRF52 series.  Yes, all IRQ handler are matched properly between nRF52 and nRF54 as per nrfxlib docs but no interrupts are generated on the nRF54.

Thanks,

[Elfving]

Hi,

Hung is currently OOO, so I will take care of this case in the meantime.

I sent a quick question to the relevant team, and they say that this can happen when the GRTC is off. It would be better to not use the nrfxlib directly.

Regards,

Elfving

[Elfving]

This can be a bit tricky when simply trying to port an application. Both the GRTC and the syscounter needs to be running for it to work. 

You can have a look at this zephyr driver as a reference.

Regards,

Elfving

[Nguyen Hoan Hoang]

Ok so they are not started by the lib.  The docs didn't say that. Please review and modify the documentation accordingly. 

[Nguyen Hoan Hoang]

Initializing the GRTC from the firmware app works.  That was the missing link.  I thought it was supposed to be initialized by the mpsl similar to the nRF52.