Hi,
We have a custom board that removes the 32 kHz crystal, so trying to enable the internal RC. I've looked through similar issues here, and seems like what's needed in the prj.conf is:
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
However, I don't think zephyr is booting as I don't see anything on the RTT console.
With the nRF5 SDK 17.1, a colleague got the UART up and running on the same board, so we know it can work. I'm just having issues getting zephyr to boot. I haven't slogged through Kconfig enough to navigate the sea of configs, but was wondering if I'm missing something simple/elemental. I'd be happy to provide any info/data to help solve this.
I've also twiddled with the following after seeing some posts with no effect:
CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC_CALIBRATION=y
CONFIG_CLOCK_CONTROL_NRF_CALIBRATION_LF_ALWAYS_ON=y
At this point, I'm not trying to do anything except boot and enable UART and SPI.
Thanks,
Sang
