ADC Config Invalid Value nRF Connect

RE: ADC Config Invalid Value nRF Connect

Håkon Alseth — Fri, 19 Aug 2022 07:20:57 GMT

Hi,

You're ending up in the default switch case here:

https://github.com/nrfconnect/sdk-zephyr/blob/main/drivers/adc/adc_nrfx_saadc.c#L123-L126

This is because 30 is not a valid acquisition time. You should choose one of the defined ones in the TACQ field:

https://infocenter.nordicsemi.com/topic/ps_nrf52810/saadc.html?cp=4_5_0_5_16_10_19#register.CH-0-7.CONFIG

Kind regards,

Håkon

RE: ADC Config Invalid Value nRF Connect

EthanDP — Thu, 18 Aug 2022 17:33:14 GMT

Hi Håkon,

It is enabled by default with the nRF52810 DK but I added that to my config as well and the issue still persists

RE: ADC Config Invalid Value nRF Connect

Håkon Alseth — Thu, 18 Aug 2022 11:08:46 GMT

Hi,

Do you have "CONFIG_ADC_CONFIGURABLE_INPUTS" Y-selected at your end?

Kind regards,

Håkon

RE: ADC Config Invalid Value nRF Connect

EthanDP — Wed, 17 Aug 2022 23:26:31 GMT

I also forgot to include my device tree:

/ {
    aliases {
    	led0 = &led0;
    	bus-int = &bus_int;
    	i2c0 = &i2c0;
    	bootloader-led0 = &led0;
    	adcctrl = &adc;
    };
}

&adc {
	status = "okay";
};