I have an issue with the internal clock setting, and TWI. My custom board has an issue with the external crystal. So I switched to internal crystal with the following settings:
NRF_SDH_CLOCK_LF_SRC 0
NRF_SDH_CLOCK_LF_RC_CTIV 2
NRF_SDH_CLOCK_LF_RC_TEMP_CTIV 22
BLE radio is working, however SCL, SDA line is just high. Is there any setting for the TWI driver to ensure that the internal clock is used?