nrf52840 saadc ladder 160k resistors

[Oleg]

hi Engineers! I am trying to use int. pullup of 160k but no effect. the voltage remains zero on pin.

config.resistor_p = NRF_SAADC_RESISTOR_PULLUP;

what problem?

thx.

[Oleg]

just do read ADC value. with or without no difference.