How to use the Thingy:91 NMOS outs?

Question

I'm trying to adapt the MQTT example to use the NMOS outputs.

I managed to use LED:s as output with no issues, but I'm not getting any response from NMOS pins. I also checked that there is no response in TP32.

This is the overlay I'm trying to use:


&pwm2 {
    status="disabled";
};

/ {

outs {
    status = "okay";
    compatible = "gpio-leds";
    out_1: led_1 {
        gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
        label = "channel0";
    };
    out_2: led_2 {
        gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
        label = "channel1";
    };

};

aliases {
    out1=&out_1;
    out2=&out_2;
};

};

And I've adapted the led.c like this:

/*
 * Copyright (c) 2023 Nordic Semiconductor ASA
 *
 * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
 */

#include <zephyr/kernel.h>
#include <zephyr/logging/log.h>
#include <zephyr/zbus/zbus.h>
#include <zephyr/drivers/led.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/pwm.h>

#include "message_channel.h"

/* Register log module */
LOG_MODULE_REGISTER(led, CONFIG_MQTT_SAMPLE_LED_LOG_LEVEL);

#define OUT1 DT_NODELABEL(out_1)
#define OUT1_DEV DT_PHANDLE(OUT1,gpios)
#define OUT1_PIN DT_PHA(OUT1,gpios,pin)
#define OUT1_FLAGS DT_PHA(OUT1,gpios,flags)
#define PWM_CH0_PIN DT_PROP(DT_NODELABEL(outs), ch0_pin)

const static struct device *led_device = DEVICE_DT_GET_ANY(gpio_leds);
const static struct device *nmos_device = DEVICE_DT_GET(OUT1_DEV);

/* LED 1, green on Thingy:91 boards. */
#define LED_1_GREEN 1

void led_callback(const struct zbus_channel *chan)
{
	int err = 0;
	const enum network_status *status;
	//const struct device *nmos_device = device_get_binding(DT_ALIAS_OUT0_GPIOS_CONTROLLER);


	if (&NETWORK_CHAN == chan) {

		if (!device_is_ready(led_device)) {
			LOG_ERR("LED device is not ready");
			return;
		}
		
		
		if (!device_is_ready(nmos_device)) {
			LOG_ERR("nmos device is not ready");
			return;
		}

		err=gpio_pin_configure(nmos_device, OUT1_PIN, OUT1_FLAGS);
		if (err) {
				LOG_ERR("gpio config err, error: %d", err);
			}
		
		
		/* Get network status from channel. */
		status = zbus_chan_const_msg(chan);

		switch (*status) {
		case NETWORK_CONNECTED:
			err = led_on(led_device, LED_1_GREEN);
			if (err) {
				LOG_ERR("led_on, error: %d", err);
			}
			break;
		case NETWORK_DISCONNECTED:
			err = led_off(led_device, LED_1_GREEN);
			if (err) {
				LOG_ERR("led_off, error: %d", err);
			}
			break;
		case CHANNEL1_ON:
			err = led_on(led_device, 2);
			if (err) {
				LOG_ERR("led_off, error: %d", err);
			}
			err=gpio_pin_set(nmos_device,OUT1_PIN,1);
			//err = led_on(nmos_device, 1);
			if (err) {
				LOG_ERR("pin set, error: %d", err);
			}
			break;
		case CHANNEL1_OFF:
			err = led_off(led_device, 2);
			err=gpio_pin_set(nmos_device,OUT1_PIN,0);
			if (err) {
				LOG_ERR("pin off, error: %d", err);
			}
			break;

		default:
			LOG_ERR("Unknown event: %d", *status);
			break;
		}
	}
}

ZBUS_LISTENER_DEFINE(led, led_callback);

So what could be the issue?

Øyvind · Accepted Answer

Hello again, 
 a small update. Our developers had a test with the code you provided. They got it running by modifying the GPIO configuration to the following: 
 err = gpio_pin_configure(nmos_device, OUT1_PIN, OUT1_FLAGS | GPIO_OUTPUT); 
 Could you test that on your side? 
 Kind regards, Øyvind

How to use the Thingy:91 NMOS outs?

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