Zephyr Battery Voltage Measurement

RE: Zephyr Battery Voltage Measurement

Priyanka — Tue, 22 Mar 2022 13:09:54 GMT

Hi Bojan,

We don't generally support the Zephyr for nRF51 series. But you could try building the adc samples that we have in Zephyr for the nRF51, or at least it works well for the nRF51DK_nRF51422.

Regards,

Priyanka

RE: Zephyr Battery Voltage Measurement

bojan — Tue, 22 Mar 2022 10:23:23 GMT

Hello, Priyanka!

Where can I find an appropriate example of reading ADC voltage with nRF51 SoCs in the Zephyr environment? I started looking at the Analog-to-Digital Converter (ADC) sample from here but the Note says that:

The sample does not work on Nordic platforms where there is a distinction between channel and analog input that requires additional configuration. See samples/boards/nrf/battery for an example of using the ADC infrastructure on Nordic hardware.

However, samples/boards/nrf/battery is using SAADC peripheral which is not supported in nRF51 SoCs. Can you help me find the appropriate way of using the ADC peripheral of nRF51 SoCs in the Zephyr environment?

Thanks in advance.

Regards,

Bojan.

RE: Zephyr Battery Voltage Measurement

bojan — Mon, 21 Mar 2022 20:39:02 GMT

Hello, Priyanka!

I did not know that nRF51 does not support SAADC.

Would it be possible to adapt the existing battery voltage measurement approach for nRF51 (basically just to avoid using SAADC)?

Regards,

Bojan.

RE: Zephyr Battery Voltage Measurement

Priyanka — Fri, 18 Mar 2022 13:02:23 GMT

Hi Bojan,

This could be because you are trying with the nRF51 and this does not support the SAADC and as you can see

the code is written for the SAADC peripheral. 🙂

Regards,

Priyanka