The overlay for the nRF52840 DK board uses ADC controller child nodes
for specifying channel configurations and it shows how to configure
a channel in differential input mode, so it can serve as an example
of how to use these new possibilities. The overlay for the nRF51 DK
board shows how to use a specific ADC resolution (the default 12 bit
setting is not supported by nRF51 SoCs).
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
Allow specifying configuration of channels through child nodes of ADC
controllers. This way analog inputs can be specified for channels in
SoCs that require this and it is also possible, for example, to use
different gain or reference selections for particular channels.
This commit also removes a few former limitations of the sample: now
it is possible to use more than 2 channels and each channel can use
a different ADC controller. Also the ADC resolution to be used can be
specified through devicetree.
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
Add some changes to adc sample to enable valid verdict generation
using twister:
-Replace 'single_line' keyword with correct 'one_line'
-Remove parenthesis from the sample output to enable regex verdict
-Add timeout to save time in execution
Additionally, add support for disco_l475_iot1.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This sample shows how to use the ADC API. Depending on the support of
sequential reads in the driver, 1 or 2 channels are read and printed.
A devicetree overlay is necessary to specify the used ADC channel(s).
Signed-off-by: Martin Jäger <martin@libre.solar>
