Error building sample blinky for custom board: '__device_dts_ord_13' undeclared here (not in a function)'

RE: Error building sample blinky for custom board: '__device_dts_ord_13' undeclared here (not in a function)'

Geetha — Thu, 04 May 2023 10:53:24 GMT

Create an esp32.overlay file in the location of the project and paste the below code

/ {
     aliases {
             led0 = &myled0;
     };

     leds {
             compatible = "gpio-leds";
             myled0: led_0 {
                     gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
             };
     };
};

RE: Error building sample blinky for custom board: '__device_dts_ord_13' undeclared here (not in a function)'

Marte Myrvold — Fri, 13 Jan 2023 16:32:14 GMT

Hi,

You need to enable gpio1 in devicetree. All you need to do is to add the following to your custom dts file:

&gpio1 {
	status = "okay";
};

If you still get the same error after adding this, delete the build directory completely and build again.

Best regards,

Marte

RE: Error building sample blinky for custom board: '__device_dts_ord_13' undeclared here (not in a function)'

Andrea Verdecchia — Thu, 12 Jan 2023 15:29:09 GMT

I forgot to post the main code:

#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>

/* 1000 msec = 1 sec */
#define SLEEP_TIME_MS   1000

/* The devicetree node identifier for the "led0" alias. */
#define LED0_NODE DT_ALIAS(ledred)

/*
 * A build error on this line means your board is unsupported.
 * See the sample documentation for information on how to fix this.
 */
static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED0_NODE, gpios);

void main(void)
{
	int ret;

	if (!device_is_ready(led.port)) {
		return;
	}

	ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
	if (ret < 0) {
		return;
	}

	while (1) {
		ret = gpio_pin_toggle_dt(&led);
		if (ret < 0) {
			return;
		}
		k_msleep(SLEEP_TIME_MS);
	}
}