Hi! I am designing a nRF54 based motion tracker that has an IMU onboard which can take an external clock signal for improved timing accuracy.
Initially I had thought of just placing an external oscillator on the board solely for the IMU but after reading the nRF54 datasheet I have found out (to my understanding) that I can instead feed a single 32.768 kHz crystal into the nRF54L15, use the GRTC to route that LFCLK out on a GPIO, and drive the IMU’s CLKIN pin with it—so both chips share the same reference clock?
If so, what configuration steps or caveats should I watch out for on the nRF54L15 side?
