Now I debug PCA21125 chip,there is a probrom is no clock out output(32.768KHz),
1.pca21125 select interl oscillator(32.768KHz),
2.clkout(Pin13) link to pull-up resistor,
3.initialize CLKOUT control resiger COF to select clock frequency 32.768KHz.
the result is clock out pin level is low,not change,so please anyone give me a solution.