Does SoftDevice S113 use interrupt priority level 4, or are the actual S113 interrupt priorities 0, 1 and 6?
As I understand it, this says S113 uses priority levels 0, 1 and 4:
https://infocenter.nordicsemi.com/topic/sds_s113/SDS/s1xx/processor_avail_interrupt_latency/exception_mgmt_sd.html
But SD_EVT_IRQHandler seems to use priority 6.
I see priority 6 returned from current_int_priority_get() inside my NRF_SDH_BLE_OBSERVER handler, with NRF_SDH_DISPATCH_MODEL 0. It also says 6 in nrf_soc.h and in
https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.s113.api.v7.0.1%2Fgroup__nrf__soc__api.html
[Drill down through Defines to SD_EVT_IRQHandler]