zephyr - ADC - ATSAMD21G18A

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Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

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zephyr - ADC - ATSAMD21G18A #36716

Closed ieeeHuseyin closed 2 years ago

ieeeHuseyin commented 3 years ago

I want to create an ADC sample for the ATSAMD21G18A processor (for pins PA02-PA03-PA04) But I don't understand which sample should I use. Can you help me?

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krucialdavidw commented 1 year ago

For any weary traveller, I had to port from zephyr 2.7 -> 3.3.99 for the adafruit m0 LoRa feather and got a quick fix by defining the status and pinctrl for the adc in the overlay. This was to measure PA07 - AIN7 - Feather pin 9 and PB02 - AIN10 - Feather pin A5

overlay:

&pinctrl {
    adc0_adc: adc0_adc {
        group1 {
            pinmux = <PA7B_ADC_AIN7>, <PB2B_ADC_AIN10>; 
        };
    };
};

&adc {
    status = "okay";
    pinctrl-0 = <&adc0_adc>;
    pinctrl-names = "default";
};

HTH!