RE: ADC not working with nr52dk nrf52832

Aztec_Coder — Tue, 30 Apr 2024 12:59:38 GMT

ok thx let me try that

RE: ADC not working with nr52dk nrf52832

Sigurd Hellesvik — Tue, 30 Apr 2024 12:51:58 GMT

[quote user="Aztec_Coder"]Have you used other nRF Connect SDK code before? nope, am quite new in sdk enviroment[/quote]

In this case, I recommend the Nordic Developer Academy as an excellent place to start learning the nRF Connect SDK.

When you have been able to run at least one example from that, you can return to the ADC example and see if that works then.

When you are done with the Fundamentals Course the Intermediary Course even has a lesson for ADC which may be useful to you

RE: ADC not working with nr52dk nrf52832

Aztec_Coder — Tue, 30 Apr 2024 12:42:11 GMT

SDK Version 2.5.1
Development Kit Version Nrf52DK 3.0.0 with nrf52832 inside
Which sample do you use?

channel@0 {

reg = <0>;

zephyr,gain = "ADC_GAIN_1_6";

zephyr,reference = "ADC_REF_INTERNAL";

zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

zephyr,input-positive = <NRF_SAADC_AIN1>; /* P0.03 */

zephyr,resolution = <12>;

};

channel@1 {

reg = <1>;

zephyr,gain = "ADC_GAIN_1_6";

zephyr,reference = "ADC_REF_INTERNAL";

zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

zephyr,input-positive = <NRF_SAADC_VDD>;

zephyr,resolution = <14>;

zephyr,oversampling = <8>;

};

channel@4 {

reg = <4>;

zephyr,gain = "ADC_GAIN_1_5";

zephyr,reference = "ADC_REF_VDD_1_4";

zephyr,vref-mv = <750>;

zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

zephyr,input-positive = <NRF_SAADC_AIN2>; /* P0.04 lo cambie porque se empalmaba con comm */

//zephyr,input-positive = <NRF_SAADC_AIN6>; /* P0.30 */

zephyr,input-negative = <NRF_SAADC_AIN4>; /* P0.28 lo cambie porque se empalmaba con comm*/

//zephyr,input-negative = <NRF_SAADC_AIN7>; /* P0.31 */

zephyr,resolution = <12>;

};

Do you use custom hardware or code? well am using the ADC example and just added the overlay to make it work with the nrf52dk as below:

/ {

zephyr,user {

//io-channels = <&adc 0>, <&adc 1>, <&adc 7>;

io-channels = <&adc 0>, <&adc 1>, <&adc 4>;

};

&adc {

#address-cells = <1>;

#size-cells = <0>;

channel@0 {

reg = <0>;

zephyr,gain = "ADC_GAIN_1_6";

zephyr,reference = "ADC_REF_INTERNAL";

zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

zephyr,input-positive = <NRF_SAADC_AIN1>; /* P0.03 */

zephyr,resolution = <12>;

};

channel@1 {

reg = <1>;

zephyr,gain = "ADC_GAIN_1_6";

zephyr,reference = "ADC_REF_INTERNAL";

zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

zephyr,input-positive = <NRF_SAADC_VDD>;

zephyr,resolution = <14>;

zephyr,oversampling = <8>;

};

channel@4 {

reg = <4>;

zephyr,gain = "ADC_GAIN_1_5";

zephyr,reference = "ADC_REF_VDD_1_4";

zephyr,vref-mv = <750>;

zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

zephyr,input-positive = <NRF_SAADC_AIN2>; /* P0.04 lo cambie porque se empalmaba con comm */

//zephyr,input-positive = <NRF_SAADC_AIN6>; /* P0.30 */

zephyr,input-negative = <NRF_SAADC_AIN4>; /* P0.28 lo cambie porque se empalmaba con comm*/

//zephyr,input-negative = <NRF_SAADC_AIN7>; /* P0.31 */

zephyr,resolution = <12>;

};

&arduino_adc {

io-channel-map = <0 &adc 1>, <1 &adc 2>, <2 &adc 4>, <3 &adc 5>, <4 &adc 6>, <5 &adc 7>;

};

Do you have any logs of the problem?

the issue its that its not showing in the com6

Have you used other nRF Connect SDK code before? nope, am quite new in sdk enviroment

RE: ADC not working with nr52dk nrf52832

Sigurd Hellesvik — Tue, 30 Apr 2024 10:38:44 GMT

Hi Rito,

For us to help you with this in the best possible way, please list the following information:

SDK Version
Development Kit Version
Which sample do you use?
Do you use custom hardware or code?

Do you have any logs of the problem?

Have you used other nRF Connect SDK code before?

Regards,
Sigurd Hellesvik