When the SoftDevice is not enabled, the Protocol Application Programming Interface (API) and parts of the System on Chip (SoC) library API are not available to the application.
When the SoftDevice is not enabled, most of the SoC's resources are available to the application. However, the following restrictions apply:
Once the SoftDevice has been enabled, more restrictions apply:
nrf_nvic_
functions must be used instead of Cortex Microcontroller Software Interface Standard (CMSIS) NVIC_
functions for safe use of the SoftDevice.